485BPOS

As filed with the Securities and Exchange Commission on January 18, 2013

Securities Act File No. 333-103022

Investment Company Act File No. 811-21295

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933	¨
Pre-Effective Amendment No.	¨
Post-Effective Amendment No. 253	x

and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940	¨
Amendment No. 254	x
(Check appropriate box or boxes)

JPMORGAN TRUST I

(Exact Name of Registrant Specified in Charter)

270 Park Avenue

New York, New York, 10017

(Address of Principal Executive Offices)

Registrant’s Telephone Number, Including Area Code: (800) 480-4111

Frank J. Nasta, Esq.

J.P. Morgan Investment Management Inc.

270 Park Avenue

New York, NY 10017

(Name and Address of Agent for Service)

With copies to:

Jessica K. Ditullio, Esq.	Jon S. Rand, Esq.
JPMorgan Chase & Co.	Dechert LLP
460 Polaris Parkway	1095 Avenue of the Americas
Westerville, Ohio 43082	New York, NY 10036

It is proposed that this filing will become effective (check appropriate box):

x immediately upon filing pursuant to paragraph (b)

¨ 60 days after filing pursuant to paragraph (a)(1)

¨ 75 days after filing pursuant to paragraph (a)(2)

¨ on                                 pursuant to paragraph (b).

¨ on pursuant to paragraph (a)(1).

¨ on (date) pursuant to paragraph (a)(2).

If appropriate, check the following box:

¨ The post-effective amendment designates a new effective date for a previously filed post-effective amendment.

EXPLANATORY NOTE

This Post-Effective Amendment No. 253 relates to the following funds:

JPMorgan Diversified Real Return Fund

JPMorgan Floating Rate Income Fund

SIGNATURE

Pursuant to the requirements of the Securities Act of 1933, as amended, and the Investment Company Act of 1940, as amended, the Registrant, JPMorgan Trust I, certifies that it meets all the requirements for the effectiveness of this Registration Statement under Rule 485(b) under the Securities Act of 1933, and has duly caused this Post-Effective Amendment to the Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the City of Westerville and State of Ohio on the 18th day of January, 2013.

JPMORGAN TRUST I
By:	PATRICIA A. MALESKI*
	Patricia A. Maleski
	President and Principal Executive Officer

Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed below by the following persons in the capacities indicated on January 18, 2013.

JOHN F. FINN*		MITCHELL M. MERIN*
John F. Finn Trustee		Mitchell M. Merin Trustee
DR. MATTHEW GOLDSTEIN*		WILLIAM G. MORTON, JR.*
Dr. Matthew Goldstein Trustee		William G. Morton, Jr. Trustee
ROBERT J. HIGGINS*		ROBERT A. ODEN, JR.*
Robert J. Higgins* Trustee		Robert A. Oden, Jr. Trustee
FRANKIE D. HUGHES*		FREDERICK W. RUEBECK*
Frankie D. Hughes Trustee		Frederick W. Ruebeck Trustee
PETER C. MARSHALL*		JAMES J. SCHONBACHLER*
Peter C. Marshall Trustee		James J. Schonbachler Trustee
MARY E. MARTINEZ*		By	PATRICIA A. MALESKI*
Mary E. Martinez Trustee			Patricia A. Maleski President and Principal Executive Officer
MARILYN MCCOY*
Marilyn McCoy Trustee
By	JOY C. DOWD*
	Joy C. Dowd
	Treasurer and Principal Financial Officer
*By	/S/  JESSICA K. DITULLIO
	Jessica K. Ditullio
	Attorney-in-Fact

Exhibit Index

Exhibit Number	Description
EX-101.INS	XBRL Instance Document
EX-101.SCH	XBRL Taxonomy Extension Schema Document
EX-101.CAL	XBRL Taxonomy Extension Calculation Linkbase
EX-101.DEF	XBRL Taxonomy Extension Definition Linkbase
EX-101.LAB	XBRL Taxonomy Extension Labels Linkbase
EX-101.PRE	XBRL Taxonomy Extension Presentation Linkbase

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R2, R5 Shares | JPMorgan Diversified Real Return Fund

JPMorgan Diversified Real Return Fund

Class/Ticker: R2/JRFRX; R5/JRLRX

What is the goal of the Fund?

The Fund seeks to maximize long-term real return.

Fees and Expenses of the Fund

The following table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

ANNUAL FUND OPERATING EXPENSES
(Expenses that you pay each year as a percentage of the value
of your investment)

Annual Fund Operating Expenses R2, R5 Shares JPMorgan Diversified Real Return Fund		Class R2	Class R5
Management Fees		0.10%	0.10%
Distribution (Rule 12b-1) Fees		0.50%	none
Other Expenses		0.87%	0.54%
Shareholder Service Fees		0.25%	0.05%
Remainder of Other Expenses		0.62%	0.49%
Acquired Fund Fees and Expenses (Underlying Fund)		0.61%	0.61%
Total Annual Fund Operating Expenses		2.08%	1.25%
Fee Waivers and/or Expense Reimbursements	[1]	(0.61%)	(0.38%)
Total Annual Fund Operating Expenses After Fee Waivers and Expense Reimbursements	[1]	1.47%	0.87%

Example

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses are equal to the total annual fund operating expenses after fee waivers and expense reimbursements shown in the fee table through 12/31/13 and total annual fund operating expenses thereafter. Your actual costs may be higher or lower.

WHETHER OR NOT YOU SELL YOUR SHARES, YOUR
COST WOULD BE:

Expense Example R2, R5 Shares JPMorgan Diversified Real Return Fund (USD $)	1 Year	3 Years	5 Years	10 Years
CLASS R2 SHARES ($)	150	593	1,063	2,362
CLASS R5 SHARES ($)	89	359	650	1,478

WHETHER OR NOT YOU SELL YOUR SHARES, YOUR
COST WOULD BE:

Expense Example, No Redemption R2, R5 Shares JPMorgan Diversified Real Return Fund (USD $)	1 Year	3 Years	5 Years	10 Years
CLASS R2 SHARES ($)	150	593	1,063	2,362
CLASS R5 SHARES ($)	89	359	650	1,478

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund’s performance. During the Fund’s most recent fiscal year, the Fund’s portfolio turnover rate was 42% of the average value of its portfolio.

What are the Fund’s main investment strategies?

The Fund is a fund of funds that seeks real return by allocating its assets across a combination of inflation sensitive asset classes. “Real return” means the return in excess of the actual rate of inflation. In addition, by allocating across multiple asset classes, the Fund seeks to have lower volatility than the S&P 500. The actual rate of inflation is measured by the Consumer Price Index for All Urban Consumers (CPI-U) over time.

The Fund invests in other J.P. Morgan Funds and, to a lesser extent, in exchange traded funds (ETFs) (collectively with the J.P. Morgan Funds, the “underlying funds”) and exchange traded notes (ETNs). In seeking to meet its objective, the Fund invests in underlying funds and ETNs that provide exposure to inflation sensitive securities and asset classes such as Treasury Inflation Protected Securities (TIPS) and CPI-U swaps, real estate investment trusts (REITs), commodities, natural resources and infrastructure, including companies that provide services such as transportation systems, water supply and power. The Fund also invests in underlying funds that have exposure to additional inflation sensitive securities and asset class including underlying funds that have significant exposure to below investment grade securities and loan participations and assignments (Loans). Below investment grade securities are also known as “junk bonds”. The Fund may invest in underlying funds that make investments in international and emerging markets and utilize non-dollar denominated investments.

Asset allocation decisions are primarily based on the adviser’s evaluations of U.S. price trends as measured by the CPI-U and the relative attractiveness of the asset classes in which the Fund invests.

The portfolio managers use a flexible asset allocation approach in managing the Fund. Based on current inflationary views as of the date of the prospectus, it is anticipated that approximately 60% of the Fund’s assets will be invested in fixed income funds that invest in inflation-protected securities such as TIPS or that utilize strategies such as combining a core portfolio of fixed income securities with CPI-U swaps to create the equivalent of a portfolio of inflation-protected fixed income securities. Approximately 25% of the Fund’s assets are expected to have exposure to equity funds or ETNs that invest in securities in REITs or real estate related-securities, natural resources, and infrastructure. The Fund is also anticipated to invest approximately 10% of its assets in underlying funds or ETNs that have exposure to commodities, and 5% in cash and cash equivalents. The Fund’s allocations may deviate substantially from these ranges.

In addition to investing in underlying funds and ETNs, the Fund may utilize derivatives and invest directly in equity securities. Derivatives are instruments that have a value based on another instrument, exchange rate or index. The Fund may utilize forward currency transactions to hedge exposure to non-dollar denominated investments back to the U.S. dollar. The Fund may also utilize exchange traded futures for cash management and to gain exposure to equities pending investment in underlying funds.

In buying and selling investments for the Fund, the adviser employs a four-step process that combines 1) strategic asset allocation research, 2) asset allocation based on the portfolio managers’ intermediate term outlook, 3) analysis of the investment capabilities of the underlying funds and portfolio managers, and 4) construction of the portfolio and rebalancing. Through this process, the adviser conducts extensive research on inflationary markets and the inflation hedging capabilities of various asset classes. In consideration of the risk and return objectives of the Fund, the adviser determines the weightings of the asset classes, selects the underlying funds and other instruments, and constructs the portfolio. On an ongoing basis, the adviser monitors the portfolio and makes tactical asset allocation changes and rebalances the portfolio to realign the weightings of the underlying funds and asset classes as needed based on the portfolio managers’ view of the inflationary cycle and current market outlook.

The Fund’s Main Investment Risks

The Fund is subject to management risk and may not achieve its objective if the adviser’s expectations about particular securities or markets are not met. The Fund is exposed to the risks summarized below through both its direct investments and investments in underlying funds.

An investment in this Fund or any other fund may not provide a complete investment program. The suitability of an investment in the Fund should be considered based on the investment objective, strategies and risks described in this prospectus, considered in light of all of the other investments in your portfolio, as well as your risk tolerance, financial goals and time horizons. You may want to consult with a financial advisor to determine if this Fund is suitable for you.

General Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions.

Investment Company and ETF Risk. The Fund invests in other J.P. Morgan Funds and ETFs as a primary strategy, so the Fund’s investment performance and risks are directly related to the performance and risks of the underlying funds. Shareholders bear both their proportionate share of the Fund’s expenses and similar expenses of the underlying funds. Because the adviser and/or its affiliates provide services and receive fees from the underlying J.P. Morgan Funds, the Fund’s investments in such underlying funds benefit the adviser and/or its affiliates. In addition, the Fund may hold a significant percentage of the shares of an underlying fund. As a result, the Fund’s investments in an underlying fund may create a conflict of interest. Certain ETFs and other underlying funds may not be actively managed. Securities may be purchased, held and sold by such funds when an actively managed fund would not do so. ETFs may trade at a price below their net asset value (also known as a discount).

Strategy Risk. The Fund’s investment strategies may not work to maximize real return. The Fund may invest in underlying funds that utilize derivatives and debt securities to mimic a portfolio of inflation-protected bonds. There is no guarantee that this strategy will be effective. In addition, some of the underlying funds make direct investments in inflation-protected securities. Unlike conventional bonds, the principal or interest on inflation-protected securities such as TIPS is adjusted periodically to a specified rate of inflation (e.g., CPI-U). There can be no assurance that the inflation index used will accurately measure the actual rate of inflation. These securities may lose value in the event that the actual rate of inflation is different than the rate of the inflation index. The Fund may also use underlying funds or investments that utilize certain types of securities as a proxy for inflation-protected securities such as REITs, real estate, commodities or infrastructure. These investments may not reflect the impact of inflation.

Commodity Risk. Exposure to commodities, commodity-related securities and derivatives may subject an underlying fund to greater volatility than investments in traditional securities, particularly if the instruments involve leverage. The value of commodity-linked investments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity. In addition, to the extent that an underlying fund gains exposure to an asset through synthetic replication by investing in commodity-linked investments rather than directly in the asset, it may not have a claim on the applicable underlying asset and will be subject to enhanced counterparty risk.

Natural Resources Risk. Equity and equity-like securities of natural resources companies and associated businesses may be negatively impacted by variations, often rapid, in the commodities markets, the supply of and demand for specific products and services, the supply of and demand for oil and gas, the price of oil and gas, exploration and production spending, government regulation, economic conditions, events relating to international political developments, environmental incidents, energy conservation and the success of exploration projects. Therefore, the securities of companies in the natural resources sector may experience more price volatility than securities of companies in other industries.

Securities of Real Estate Companies and REITs Risk. Investments in real estate securities, including REITs, are subject to the same risks as direct investments in real estate and will depend on the value of the underlying real estate. These risks include default, prepayment, changes in value resulting from changes in interest rates and demand for real and rental property, and the management skill and creditworthiness of REIT issuers. The Fund and the underlying funds will indirectly bear their proportionate share of expenses, including management fees, paid by each REIT in which they invest in addition to the expenses of the underlying funds.

Infrastructure Risk. Infrastructure-related companies are subject to a variety of factors that may adversely affect their business or operations including high interest costs, costs associated with compliance with and changes in environmental and other regulations, difficulty in raising capital, increased competition, and uncertainty concerning the availability of fuel at reasonable prices and other factors. Infrastructure-related securities may be issued by companies that are highly leveraged, less creditworthy or financially distressed (also known as junk bonds). These investments are considered to be speculative and are subject to greater risk of loss, greater sensitivity to interest rate and economic changes, valuation difficulties, and potential illiquidity. Infrastructure-related companies may also be subject to “Foreign Securities and Emerging Markets Risk”.

Foreign Securities and Emerging Markets Risk. Investments in foreign currencies and foreign issuers are subject to additional risks, including political and economic risks, civil conflicts and war, greater volatility, currency fluctuations, higher transactions costs, delayed settlement, possible foreign controls on investment, expropriation and nationalization risks, liquidity risks, and less stringent investor protection and disclosure standards of foreign markets. In certain markets where securities and other instruments are not traded “delivery versus payment,” the Fund may not receive timely payment for securities or other instruments it has delivered and may be subject to increased risk that the counterparty will fail to make payments when due or default completely. Events and evolving conditions in certain economies or markets may alter the risks associated with investments tied to countries or regions that historically were perceived as comparatively stable becoming riskier and more volatile. These risks are magnified in countries in “emerging markets.”

Income Securities Risk. Investments in income securities will change in value based on changes in interest rates and are subject to credit risk, the risk that a counterparty will fail to make payments when due or default. If rates rise, the value of these investments drops. Certain underlying funds invest in variable and floating rate loan assignments and participations (Loans) and other variable and floating rate securities. Although these instruments are generally less sensitive to interest rate changes than other fixed rate instruments, the value of floating rate Loans and other securities may decline if their interest rates do not rise as quickly, or as much, as general interest rates. Certain underlying funds invest in mortgage-related and asset-backed securities including so-called “sub-prime” mortgages that are subject to certain other risks including prepayment and call risks. When mortgages and other obligations are prepaid and when securities are called, an underlying fund may have to reinvest in securities with a lower yield or fail to recover additional amounts (i.e., premiums) paid for securities with higher interest rates, resulting in an unexpected capital loss and/or a decrease in the amount of dividends and yield. Mortgage-related and asset-backed securities may: decline in value, face valuation difficulties, be more volatile and/or be illiquid.

Equity Securities Risk. Exposure to equity securities (such as stocks) creates more volatility and carries more risks than some other forms of investment. The price of equity securities may rise or fall because of economic or political changes or changes in a company’s financial condition, sometimes rapidly or unpredictably. These price movements may result from factors affecting individual companies, sectors or industries selected for an underlying fund’s portfolio or the securities market as a whole, such as changes in economic or political conditions.

Derivatives Risk. Derivatives, including forward currency contracts, futures, and commodity-linked derivatives and swaps, may be riskier than other types of investments because they may be more sensitive to changes in economic and market conditions and could result in losses that significantly exceed the Fund’s original investment. Many derivatives create leverage thereby causing the Fund to be more volatile than it would have been if it had not been exposed to such derivatives. Derivatives also expose the Fund to counterparty risk (the risk that the derivative counterparty will not fulfill its contractual obligations), including the credit risk of the derivative counterparty. Certain derivatives are synthetic instruments that attempt to replicate the performance of certain reference assets. With regard to such derivatives, the Fund does not have a claim on the reference assets and is subject to enhanced counterparty risk. Derivatives may not perform as expected, so the Fund may not realize the intended benefits. When used for hedging, the change in value of a derivative may not correlate as expected with the security being hedged. In addition, given their complexity, derivatives expose the Fund to risks of mispricing or improper valuation.

High Yield Securities and Loan Risk. The Fund may be exposed to investments in securities including junk bonds and Loans and instruments that are issued by companies that are highly leveraged, less creditworthy or financially distressed. These investments (commonly known as junk bonds) are considered to be speculative and are subject to greater risk of loss, greater sensitivity to interest rate and economic changes, valuation difficulties, and potential illiquidity.

Loans are subject to additional risks including subordination to other creditors, no collateral or limited rights in collateral, lack of a regular trading market, extended settlement periods, liquidity risks, prepayment risks, and lack of publicly available information. Loans that are deemed to be liquid at the time of purchase may become illiquid. No active trading market may exist for some Loans and certain Loans may be subject to restrictions on resale. The inability to dispose of Loans in a timely fashion could result in losses. Because some Loans may have a more limited secondary market, liquidity risk may be more pronounced for certain underlying funds than for funds that invest primarily in other types of fixed income instruments or equity securities. When Loans are prepaid, an underlying fund may have to reinvest in securities with a lower yield or fail to recover additional amounts (i.e., premiums) paid for Loans, resulting in an unexpected capital loss and/or a decrease in the amount of dividends and yield.

Exchange Traded Notes Risk. The value of an ETN may be influenced by time to maturity, level of supply and demand for the ETN, volatility and lack of liquidity in underlying commodities markets, changes in the applicable interest rates, changes in the issuer’s credit rating and economic, legal, political or geographic events that affect the referenced commodity. The value of the ETN may drop due to a downgrade in the issuer’s credit rating, even if the underlying index remains unchanged. Investments in ETNs are subject to the risks facing income securities in general including the risk that a counterparty will fail to make payments when due or default.

Redemption Risk. The Fund could experience a loss when selling securities to meet redemption requests by shareholders. The risk of loss increases if the redemption requests are unusually large or frequent, occur in times of overall market turmoil or declining prices for the securities sold, or when the securities the Fund wishes to or is required to sell are illiquid.

Investments in the Fund are not deposits or obligations of, or guaranteed or endorsed by, any bank and are not insured or guaranteed by the FDIC, the Federal Reserve Board or any other government agency.

You could lose money investing in the Fund.

The Fund’s Past Performance

The Fund commenced operations on March 31, 2011 and has limited performance history. Although past performance of a Fund is no guarantee of how it will perform in the future, historical performance may give you some indication of the risks of investing in the Fund.

[1] The Fund's adviser, administrator and distributor (the Service Providers) have contractually agreed to waive fees and/or reimburse expenses to the extent Total Annual Fund Operating Expenses (excluding Acquired Fund Fees and Expenses (Underlying Fund), dividend expenses related to short sales, interest, taxes, expenses related to litigation and potential litigation, extraordinary expenses and expenses related to the Board of Trustees' deferred compensation plan) exceed 0.86% and 0.26% of the average daily net assets of the Class R2 and Class R5 Shares, respectively. This contract cannot be terminated prior to 1/1/14 at which time the Service Providers will determine whether or not to renew or revise it.

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A, C, Select Shares | JPMorgan Diversified Real Return Fund

JPMorgan Diversified Real Return Fund

Class/Ticker: A/JRNAX; C/JRNCX; Select/JRNSX

What is the goal of the Fund?

The Fund seeks to maximize long-term real return.

Fees and Expenses of the Fund

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in the J.P. Morgan Funds. More information about these and other discounts is available from your financial intermediary and in “How to Do Business with the Fund — SALES CHARGES” on page 20 of the prospectus and in “PURCHASES, REDEMPTIONS AND EXCHANGES” in Appendix A to Part II of the Statement of Additional Information.

SHAREHOLDER FEES (Fees paid directly from your investment)

Shareholder Fees A, C, Select Shares JPMorgan Diversified Real Return Fund	Class A		Class C	Select Class
Maximum Sales Charge (Load) Imposed on Purchases, as % of Offering Price	4.50%		none	none
Maximum Deferred Sales Charge (Load) as % of Original Cost of the Shares	none	[1]	1.00%	none

ANNUAL FUND OPERATING EXPENSES
(Expenses that you pay each year as a percentage of the value
of your investment)

Annual Fund Operating Expenses A, C, Select Shares JPMorgan Diversified Real Return Fund		Class A	Class C	Select Class
Management Fees		0.10%	0.10%	0.10%
Distribution (Rule 12b-1) Fees		0.25%	0.75%	none
Other Expenses		0.94%	1.03%	0.90%
Shareholder Service Fees		0.25%	0.25%	0.25%
Remainder of Other Expenses		0.69%	0.78%	0.65%
Acquired Fund Fees and Expenses (Underlying Fund)		0.61%	0.61%	0.61%
Total Annual Fund Operating Expenses		1.90%	2.49%	1.61%
Fee Waivers and/or Expense Reimbursements	[1]	(0.68%)	(0.77%)	(0.64%)
Total Annual Fund Operating Expenses After Fee Waivers and Expense Reimbursements	[1]	1.22%	1.72%	0.97%

Example

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses are equal to the total annual fund operating expenses after fee waivers and expense reimbursements shown in the fee table through 12/31/13 and total annual fund operating expenses thereafter. Your actual costs may be higher or lower.

IF YOU SELL YOUR SHARES, YOUR COST WOULD BE:

Expense Example A, C, Select Shares JPMorgan Diversified Real Return Fund (USD $)	1 Year	3 Years	5 Years	10 Years
CLASS A SHARES ($)	569	957	1,370	2,519
CLASS C SHARES ($)	275	702	1,256	2,768
SELECT CLASS SHARES ($)	99	445	816	1,857

IF YOU DO NOT SELL YOUR SHARES, YOUR COST
WOULD BE:

Expense Example, No Redemption A, C, Select Shares JPMorgan Diversified Real Return Fund (USD $)	1 Year	3 Years	5 Years	10 Years
CLASS A SHARES ($)	569	957	1,370	2,519
CLASS C SHARES ($)	175	702	1,256	2,768
SELECT CLASS SHARES ($)	99	445	816	1,857

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund’s performance. During the Fund’s most recent fiscal year, the Fund’s portfolio turnover rate was 42% of the average value of its portfolio.

What are the Fund’s main investment strategies?

The Fund is a fund of funds that seeks real return by allocating its assets across a combination of inflation sensitive asset classes. “Real return” means the return in excess of the actual rate of inflation. In addition, by allocating across multiple asset classes, the Fund seeks to have lower volatility than the S&P 500. The actual rate of inflation is measured by the Consumer Price Index for All Urban Consumers (CPI-U) over time.

The Fund invests in other J.P. Morgan Funds and, to a lesser extent, in exchange traded funds (ETFs) (collectively with the J.P. Morgan Funds, the “underlying funds”) and exchange traded notes (ETNs). In seeking to meet its objective, the Fund invests in underlying funds and ETNs that provide exposure to inflation sensitive securities and asset classes such as Treasury Inflation Protected Securities (TIPS) and CPI-U swaps, real estate investment trusts (REITs), commodities, natural resources and infrastructure, including companies that provide services such as transportation systems, water supply and power. The Fund also invests in underlying funds that have exposure to additional inflation sensitive securities and asset class including underlying funds that have significant exposure to below investment grade securities and loan participations and assignments (Loans). Below investment grade securities are also known as “junk bonds”. The Fund may invest in underlying funds that make investments in international and emerging markets and utilize non-dollar denominated investments.

Asset allocation decisions are primarily based on the adviser’s evaluations of U.S. price trends as measured by the CPI-U and the relative attractiveness of the asset classes in which the Fund invests.

The portfolio managers use a flexible asset allocation approach in managing the Fund. Based on current inflationary views as of the date of the prospectus, it is anticipated that approximately 60% of the Fund’s assets will be invested in fixed income funds that invest in inflation-protected securities such as TIPS or that utilize strategies such as combining a core portfolio of fixed income securities with CPI-U swaps to create the equivalent of a portfolio of inflation-protected fixed income securities. Approximately 25% of the Fund’s assets are expected to have exposure to equity funds or ETNs that invest in securities in REITs or real estate related-securities, natural resources, and infrastructure. The Fund is also anticipated to invest approximately 10% of its assets in underlying funds or ETNs that have exposure to commodities, and 5% in cash and cash equivalents. The Fund’s allocations may deviate substantially from these ranges.

In addition to investing in underlying funds and ETNs, the Fund may utilize derivatives and invest directly in equity securities. Derivatives are instruments that have a value based on another instrument, exchange rate or index. The Fund may utilize forward currency transactions to hedge exposure to non-dollar denominated investments back to the U.S. dollar. The Fund may also utilize exchange traded futures for cash management and to gain exposure to equities pending investment in underlying funds.

In buying and selling investments for the Fund, the adviser employs a four-step process that combines 1) strategic asset allocation research, 2) asset allocation based on the portfolio managers’ intermediate term outlook, 3) analysis of the investment capabilities of the underlying funds and portfolio managers, and 4) construction of the portfolio and rebalancing. Through this process, the adviser conducts extensive research on inflationary markets and the inflation hedging capabilities of various asset classes. In consideration of the risk and return objectives of the Fund, the adviser determines the weightings of the asset classes, selects the underlying funds and other instruments, and constructs the portfolio. On an ongoing basis, the adviser monitors the portfolio and makes tactical asset allocation changes and rebalances the portfolio to realign the weightings of the underlying funds and asset classes as needed based on the portfolio managers’ view of the inflationary cycle and current market outlook.

The Fund’s Main Investment Risks

The Fund is subject to management risk and may not achieve its objective if the adviser’s expectations about particular securities or markets are not met. The Fund is exposed to the risks summarized below through both its direct investments and investments in underlying funds.

An investment in this Fund or any other fund may not provide a complete investment program. The suitability of an investment in the Fund should be considered based on the investment objective, strategies and risks described in this Prospectus, considered in light of all of the other investments in your portfolio, as well as your risk tolerance, financial goals and time horizons. You may want to consult with a financial advisor to determine if this Fund is suitable for you.

General Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions.

Investment Company and ETF Risk. The Fund invests in other J.P. Morgan Funds and ETFs as a primary strategy, so the Fund’s investment performance and risks are directly related to the performance and risks of the underlying funds. Shareholders bear both their proportionate share of the Fund’s expenses and similar expenses of the underlying funds. Because the adviser or its affiliates provide services and receive fees from the underlying J.P. Morgan Funds, the Fund’s investments in such underlying funds benefit the adviser and/or its affiliates. In addition, the Fund may hold a significant percentage of the shares of an underlying fund. As a result, the Fund’s investments in an underlying fund may create a conflict of interest. Certain ETFs and other underlying funds may not be actively managed. Securities may be purchased, held and sold by such funds when an actively managed fund would not do so. ETFs may trade at a price below their net asset value (also known as a discount).

Strategy Risk. The Fund’s investment strategies may not work to maximize real return. The Fund may invest in underlying funds that utilize derivatives and debt securities to mimic a portfolio of inflation-protected bonds. There is no guarantee that this strategy will be effective. In addition, some of the underlying funds make direct investments in inflation-protected securities. Unlike conventional bonds, the principal or interest on inflation-protected securities such as TIPS is adjusted periodically to a specified rate of inflation (e.g., CPI-U). There can be no assurance that the inflation index used will accurately measure the actual rate of inflation. These securities may lose value in the event that the actual rate of inflation is different than the rate of the inflation index. The Fund may also use underlying funds or investments that utilize certain types of securities as a proxy for inflation-protected securities such as REITs, real estate, commodities or infrastructure. These investments may not reflect the impact of inflation.

Commodity Risk. Exposure to commodities, commodity-related securities and derivatives may subject an underlying fund to greater volatility than investments in traditional securities, particularly if the instruments involve leverage. The value of commodity-linked investments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity. In addition, to the extent that an underlying fund gains exposure to an asset through synthetic replication by investing in commodity-linked investments rather than directly in the asset, it may not have a claim on the applicable underlying asset and will be subject to enhanced counterparty risk.

Natural Resources Risk. Equity and equity-like securities of natural resources companies and associated businesses may be negatively impacted by variations, often rapid, in the commodities markets, the supply of and demand for specific products and services, the supply of and demand for oil and gas, the price of oil and gas, exploration and production spending, government regulation, economic conditions, events relating to international political developments, environmental incidents, energy conservation and the success of exploration projects. Therefore, the securities of companies in the natural resources sector may experience more price volatility than securities of companies in other industries.

Securities of Real Estate Companies and REITs Risk. Investments in real estate securities, including REITs, are subject to the same risks as direct investments in real estate and will depend on the value of the underlying real estate. These risks include default, prepayment, changes in value resulting from changes in interest rates and demand for real and rental property, and the management skill and creditworthiness of REIT issuers. The Fund and the underlying funds will indirectly bear their proportionate share of expenses, including management fees, paid by each REIT in which they invest in addition to the expenses of the underlying funds.

Infrastructure Risk. Infrastructure-related companies are subject to a variety of factors that may adversely affect their business or operations including high interest costs, costs associated with compliance with and changes in environmental and other regulations, difficulty in raising capital, increased competition, and uncertainty concerning the availability of fuel at reasonable prices and other factors. Infrastructure-related securities may be issued by companies that are highly leveraged, less creditworthy or financially distressed (also known as junk bonds). These investments are considered to be speculative and are subject to greater risk of loss, greater sensitivity to interest rate and economic changes, valuation difficulties, and potential illiquidity. Infrastructure-related companies may also be subject to “Foreign Securities and Emerging Markets Risk.”

Foreign Securities and Emerging Markets Risk. Investments in foreign currencies and foreign issuers are subject to additional risks, including political and economic risks, civil conflicts and war, greater volatility, currency fluctuations, higher transactions costs, delayed settlement, possible foreign controls on investment, expropriation and nationalization risks, liquidity risks, and less stringent investor protection and disclosure standards of foreign markets. In certain markets where securities and other instruments are not traded “delivery versus payment,” the Fund may not receive timely payment for securities or other instruments it has delivered and may be subject to increased risk that the counterparty will fail to make payments when due or default completely. Events and evolving conditions in certain economies or markets may alter the risks associated with investments tied to countries or regions that historically were perceived as comparatively stable becoming riskier and more volatile. These risks are magnified in countries in “emerging markets.”

Income Securities Risk. Investments in income securities will change in value based on changes in interest rates and are subject to credit risk, the risk that a counterparty will fail to make payments when due or default. If rates rise, the value of these investments drops. Certain underlying funds invest in variable and floating rate loan assignments and participations (Loans) and other variable and floating rate securities. Although these instruments are generally less sensitive to interest rate changes than other fixed rate instruments, the value of floating rate Loans and other securities may decline if their interest rates do not rise as quickly, or as much, as general interest rates. Certain underlying funds invest in mortgage-related and asset-backed securities including so-called “sub-prime” mortgages that are subject to certain other risks including prepayment and call risks. When mortgages and other obligations are prepaid and when securities are called, an underlying fund may have to reinvest in securities with a lower yield or fail to recover additional amounts (i.e., premiums) paid for securities with higher interest rates, resulting in an unexpected capital loss and/or a decrease in the amount of dividends and yield. Mortgage-related and asset-backed securities may: decline in value, face valuation difficulties, be more volatile and/or be illiquid.

Equity Securities Risk. Exposure to equity securities (such as stocks) creates more volatility and carries more risks than some other forms of investment. The price of equity securities may rise or fall because of economic or political changes or changes in a company’s financial condition, sometimes rapidly or unpredictably. These price movements may result from factors affecting individual companies, sectors or industries selected for an underlying fund’s portfolio or the securities market as a whole, such as changes in economic or political conditions.

Derivatives Risk. Derivatives, including forward currency contracts, futures, and commodity-linked derivatives and swaps, may be riskier than other types of investments because they may be more sensitive to changes in economic and market conditions and could result in losses that significantly exceed the Fund’s original investment. Many derivatives create leverage thereby causing the Fund to be more volatile than it would have been if it had not been exposed to such derivatives. Derivatives also expose the Fund to counterparty risk (the risk that the derivative counterparty will not fulfill its contractual obligations), including the credit risk of the derivative counterparty. Certain derivatives are synthetic instruments that attempt to replicate the performance of certain reference assets. With regard to such derivatives, the Fund does not have a claim on the reference assets and is subject to enhanced counterparty risk. Derivatives may not perform as expected, so the Fund may not realize the intended benefits. When used for hedging, the change in value of a derivative may not correlate as expected with the security being hedged. In addition, given their complexity, derivatives expose the Fund to risks of mispricing or improper valuation.

High Yield Securities and Loan Risk. The Fund may be exposed to investments in securities including junk bonds and Loans and instruments that are issued by companies that are highly leveraged, less creditworthy or financially distressed. These investments (commonly known as junk bonds) are considered to be speculative and are subject to greater risk of loss, greater sensitivity to interest rate and economic changes, valuation difficulties, and potential illiquidity.

Loans are subject to additional risks including subordination to other creditors, no collateral or limited rights in collateral, lack of a regular trading market, extended settlement periods, liquidity risks, prepayment risks, and lack of publicly available information. Loans that are deemed to be liquid at the time of purchase may become illiquid. No active trading market may exist for some Loans and certain Loans may be subject to restrictions on resale. The inability to dispose of Loans in a timely fashion could result in losses. Because some Loans may have a more limited secondary market, liquidity risk may be more pronounced for certain underlying funds than for funds that invest primarily in other types of fixed income instruments or equity securities. When Loans are prepaid, an underlying fund may have to reinvest in securities with a lower yield or fail to recover additional amounts (i.e., premiums) paid for Loans, resulting in an unexpected capital loss and/or a decrease in the amount of dividends and yield.

Exchange Traded Notes Risk. The value of an ETN may be influenced by time to maturity, level of supply and demand for the ETN, volatility and lack of liquidity in underlying commodities markets, changes in the applicable interest rates, changes in the issuer’s credit rating and economic, legal, political or geographic events that affect the referenced commodity. The value of the ETN may drop due to a downgrade in the issuer’s credit rating, even if the underlying index remains unchanged. Investments in ETNs are subject to the risks facing income securities in general including the risk that a counterparty will fail to make payments when due or default.

Redemption Risk. The Fund could experience a loss when selling securities to meet redemption requests by shareholders. The risk of loss increases if the redemption requests are unusually large or frequent, occur in times of overall market turmoil or declining prices for the securities sold, or when the securities the Fund wishes to or is required to sell are illiquid.

Investments in the Fund are not deposits or obligations of, or guaranteed or endorsed by, any bank and are not insured or guaranteed by the FDIC, the Federal Reserve Board or any other government agency.

You could lose money investing in the Fund.

The Fund’s Past Performance

The Fund commenced operations on March 31, 2011 and has limited performance history. Although past performance of a Fund is no guarantee of how it will perform in the future, historical performance may give you some indication of the risks of investing in the Fund.

[1] (under $1 million)

[1] The Fund's adviser, administrator and distributor (the Service Providers) have contractually agreed to waive fees and/or reimburse expenses to the extent Total Annual Fund Operating Expenses (excluding Acquired Fund Fees and Expenses (Underlying Fund), dividend expenses related to short sales, interest, taxes, expenses related to litigation and potential litigation, extraordinary expenses and expenses related to the Board of Trustees' deferred compensation plan) exceed 0.61%, 1.11%, and 0.36% of the average daily net assets of the Class A, Class C and Select Class Shares, respectively. This contract cannot be terminated prior to 1/1/14 at which time the Service Providers will determine whether or not to renew or revise it.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

JPMorgan Trust I

Prospectus Date

rr_ProspectusDate

Dec. 28, 2012

A, C, Select Shares | JPMorgan Diversified Real Return Fund

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

JPMorgan Diversified Real Return Fund

Class/Ticker: A/JRNAX; C/JRNCX; Select/JRNSX

Objective [Heading]

rr_ObjectiveHeading

What is the goal of the Fund?

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks to maximize long-term real return.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in the J.P. Morgan Funds. More information about these and other discounts is available from your financial intermediary and in “How to Do Business with the Fund — SALES CHARGES” on page 20 of the prospectus and in “PURCHASES, REDEMPTIONS AND EXCHANGES” in Appendix A to Part II of the Statement of Additional Information.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

SHAREHOLDER FEES (Fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

ANNUAL FUND OPERATING EXPENSES
(Expenses that you pay each year as a percentage of the value
of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

12/31/13

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund’s performance. During the Fund’s most recent fiscal year, the Fund’s portfolio turnover rate was 42% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

42.00%

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in the J.P. Morgan Funds.

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

100,000

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses are equal to the total annual fund operating expenses after fee waivers and expense reimbursements shown in the fee table through 12/31/13 and total annual fund operating expenses thereafter. Your actual costs may be higher or lower.

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

IF YOU SELL YOUR SHARES, YOUR COST WOULD BE:

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

IF YOU DO NOT SELL YOUR SHARES, YOUR COST
WOULD BE:

Strategy [Heading]

rr_StrategyHeading

What are the Fund’s main investment strategies?

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Fund is a fund of funds that seeks real return by allocating its assets across a combination of inflation sensitive asset classes. “Real return” means the return in excess of the actual rate of inflation. In addition, by allocating across multiple asset classes, the Fund seeks to have lower volatility than the S&P 500. The actual rate of inflation is measured by the Consumer Price Index for All Urban Consumers (CPI-U) over time.

The Fund invests in other J.P. Morgan Funds and, to a lesser extent, in exchange traded funds (ETFs) (collectively with the J.P. Morgan Funds, the “underlying funds”) and exchange traded notes (ETNs). In seeking to meet its objective, the Fund invests in underlying funds and ETNs that provide exposure to inflation sensitive securities and asset classes such as Treasury Inflation Protected Securities (TIPS) and CPI-U swaps, real estate investment trusts (REITs), commodities, natural resources and infrastructure, including companies that provide services such as transportation systems, water supply and power. The Fund also invests in underlying funds that have exposure to additional inflation sensitive securities and asset class including underlying funds that have significant exposure to below investment grade securities and loan participations and assignments (Loans). Below investment grade securities are also known as “junk bonds”. The Fund may invest in underlying funds that make investments in international and emerging markets and utilize non-dollar denominated investments.

Asset allocation decisions are primarily based on the adviser’s evaluations of U.S. price trends as measured by the CPI-U and the relative attractiveness of the asset classes in which the Fund invests.

The portfolio managers use a flexible asset allocation approach in managing the Fund. Based on current inflationary views as of the date of the prospectus, it is anticipated that approximately 60% of the Fund’s assets will be invested in fixed income funds that invest in inflation-protected securities such as TIPS or that utilize strategies such as combining a core portfolio of fixed income securities with CPI-U swaps to create the equivalent of a portfolio of inflation-protected fixed income securities. Approximately 25% of the Fund’s assets are expected to have exposure to equity funds or ETNs that invest in securities in REITs or real estate related-securities, natural resources, and infrastructure. The Fund is also anticipated to invest approximately 10% of its assets in underlying funds or ETNs that have exposure to commodities, and 5% in cash and cash equivalents. The Fund’s allocations may deviate substantially from these ranges.

In addition to investing in underlying funds and ETNs, the Fund may utilize derivatives and invest directly in equity securities. Derivatives are instruments that have a value based on another instrument, exchange rate or index. The Fund may utilize forward currency transactions to hedge exposure to non-dollar denominated investments back to the U.S. dollar. The Fund may also utilize exchange traded futures for cash management and to gain exposure to equities pending investment in underlying funds.

In buying and selling investments for the Fund, the adviser employs a four-step process that combines 1) strategic asset allocation research, 2) asset allocation based on the portfolio managers’ intermediate term outlook, 3) analysis of the investment capabilities of the underlying funds and portfolio managers, and 4) construction of the portfolio and rebalancing. Through this process, the adviser conducts extensive research on inflationary markets and the inflation hedging capabilities of various asset classes. In consideration of the risk and return objectives of the Fund, the adviser determines the weightings of the asset classes, selects the underlying funds and other instruments, and constructs the portfolio. On an ongoing basis, the adviser monitors the portfolio and makes tactical asset allocation changes and rebalances the portfolio to realign the weightings of the underlying funds and asset classes as needed based on the portfolio managers’ view of the inflationary cycle and current market outlook.

Risk [Heading]

rr_RiskHeading

The Fund’s Main Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

The Fund is subject to management risk and may not achieve its objective if the adviser’s expectations about particular securities or markets are not met. The Fund is exposed to the risks summarized below through both its direct investments and investments in underlying funds.

An investment in this Fund or any other fund may not provide a complete investment program. The suitability of an investment in the Fund should be considered based on the investment objective, strategies and risks described in this Prospectus, considered in light of all of the other investments in your portfolio, as well as your risk tolerance, financial goals and time horizons. You may want to consult with a financial advisor to determine if this Fund is suitable for you.

General Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions.

Investment Company and ETF Risk. The Fund invests in other J.P. Morgan Funds and ETFs as a primary strategy, so the Fund’s investment performance and risks are directly related to the performance and risks of the underlying funds. Shareholders bear both their proportionate share of the Fund’s expenses and similar expenses of the underlying funds. Because the adviser or its affiliates provide services and receive fees from the underlying J.P. Morgan Funds, the Fund’s investments in such underlying funds benefit the adviser and/or its affiliates. In addition, the Fund may hold a significant percentage of the shares of an underlying fund. As a result, the Fund’s investments in an underlying fund may create a conflict of interest. Certain ETFs and other underlying funds may not be actively managed. Securities may be purchased, held and sold by such funds when an actively managed fund would not do so. ETFs may trade at a price below their net asset value (also known as a discount).

Strategy Risk. The Fund’s investment strategies may not work to maximize real return. The Fund may invest in underlying funds that utilize derivatives and debt securities to mimic a portfolio of inflation-protected bonds. There is no guarantee that this strategy will be effective. In addition, some of the underlying funds make direct investments in inflation-protected securities. Unlike conventional bonds, the principal or interest on inflation-protected securities such as TIPS is adjusted periodically to a specified rate of inflation (e.g., CPI-U). There can be no assurance that the inflation index used will accurately measure the actual rate of inflation. These securities may lose value in the event that the actual rate of inflation is different than the rate of the inflation index. The Fund may also use underlying funds or investments that utilize certain types of securities as a proxy for inflation-protected securities such as REITs, real estate, commodities or infrastructure. These investments may not reflect the impact of inflation.

Commodity Risk. Exposure to commodities, commodity-related securities and derivatives may subject an underlying fund to greater volatility than investments in traditional securities, particularly if the instruments involve leverage. The value of commodity-linked investments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity. In addition, to the extent that an underlying fund gains exposure to an asset through synthetic replication by investing in commodity-linked investments rather than directly in the asset, it may not have a claim on the applicable underlying asset and will be subject to enhanced counterparty risk.

Natural Resources Risk. Equity and equity-like securities of natural resources companies and associated businesses may be negatively impacted by variations, often rapid, in the commodities markets, the supply of and demand for specific products and services, the supply of and demand for oil and gas, the price of oil and gas, exploration and production spending, government regulation, economic conditions, events relating to international political developments, environmental incidents, energy conservation and the success of exploration projects. Therefore, the securities of companies in the natural resources sector may experience more price volatility than securities of companies in other industries.

Securities of Real Estate Companies and REITs Risk. Investments in real estate securities, including REITs, are subject to the same risks as direct investments in real estate and will depend on the value of the underlying real estate. These risks include default, prepayment, changes in value resulting from changes in interest rates and demand for real and rental property, and the management skill and creditworthiness of REIT issuers. The Fund and the underlying funds will indirectly bear their proportionate share of expenses, including management fees, paid by each REIT in which they invest in addition to the expenses of the underlying funds.

Infrastructure Risk. Infrastructure-related companies are subject to a variety of factors that may adversely affect their business or operations including high interest costs, costs associated with compliance with and changes in environmental and other regulations, difficulty in raising capital, increased competition, and uncertainty concerning the availability of fuel at reasonable prices and other factors. Infrastructure-related securities may be issued by companies that are highly leveraged, less creditworthy or financially distressed (also known as junk bonds). These investments are considered to be speculative and are subject to greater risk of loss, greater sensitivity to interest rate and economic changes, valuation difficulties, and potential illiquidity. Infrastructure-related companies may also be subject to “Foreign Securities and Emerging Markets Risk.”

Foreign Securities and Emerging Markets Risk. Investments in foreign currencies and foreign issuers are subject to additional risks, including political and economic risks, civil conflicts and war, greater volatility, currency fluctuations, higher transactions costs, delayed settlement, possible foreign controls on investment, expropriation and nationalization risks, liquidity risks, and less stringent investor protection and disclosure standards of foreign markets. In certain markets where securities and other instruments are not traded “delivery versus payment,” the Fund may not receive timely payment for securities or other instruments it has delivered and may be subject to increased risk that the counterparty will fail to make payments when due or default completely. Events and evolving conditions in certain economies or markets may alter the risks associated with investments tied to countries or regions that historically were perceived as comparatively stable becoming riskier and more volatile. These risks are magnified in countries in “emerging markets.”

Income Securities Risk. Investments in income securities will change in value based on changes in interest rates and are subject to credit risk, the risk that a counterparty will fail to make payments when due or default. If rates rise, the value of these investments drops. Certain underlying funds invest in variable and floating rate loan assignments and participations (Loans) and other variable and floating rate securities. Although these instruments are generally less sensitive to interest rate changes than other fixed rate instruments, the value of floating rate Loans and other securities may decline if their interest rates do not rise as quickly, or as much, as general interest rates. Certain underlying funds invest in mortgage-related and asset-backed securities including so-called “sub-prime” mortgages that are subject to certain other risks including prepayment and call risks. When mortgages and other obligations are prepaid and when securities are called, an underlying fund may have to reinvest in securities with a lower yield or fail to recover additional amounts (i.e., premiums) paid for securities with higher interest rates, resulting in an unexpected capital loss and/or a decrease in the amount of dividends and yield. Mortgage-related and asset-backed securities may: decline in value, face valuation difficulties, be more volatile and/or be illiquid.

Equity Securities Risk. Exposure to equity securities (such as stocks) creates more volatility and carries more risks than some other forms of investment. The price of equity securities may rise or fall because of economic or political changes or changes in a company’s financial condition, sometimes rapidly or unpredictably. These price movements may result from factors affecting individual companies, sectors or industries selected for an underlying fund’s portfolio or the securities market as a whole, such as changes in economic or political conditions.

Derivatives Risk. Derivatives, including forward currency contracts, futures, and commodity-linked derivatives and swaps, may be riskier than other types of investments because they may be more sensitive to changes in economic and market conditions and could result in losses that significantly exceed the Fund’s original investment. Many derivatives create leverage thereby causing the Fund to be more volatile than it would have been if it had not been exposed to such derivatives. Derivatives also expose the Fund to counterparty risk (the risk that the derivative counterparty will not fulfill its contractual obligations), including the credit risk of the derivative counterparty. Certain derivatives are synthetic instruments that attempt to replicate the performance of certain reference assets. With regard to such derivatives, the Fund does not have a claim on the reference assets and is subject to enhanced counterparty risk. Derivatives may not perform as expected, so the Fund may not realize the intended benefits. When used for hedging, the change in value of a derivative may not correlate as expected with the security being hedged. In addition, given their complexity, derivatives expose the Fund to risks of mispricing or improper valuation.

High Yield Securities and Loan Risk. The Fund may be exposed to investments in securities including junk bonds and Loans and instruments that are issued by companies that are highly leveraged, less creditworthy or financially distressed. These investments (commonly known as junk bonds) are considered to be speculative and are subject to greater risk of loss, greater sensitivity to interest rate and economic changes, valuation difficulties, and potential illiquidity.

Loans are subject to additional risks including subordination to other creditors, no collateral or limited rights in collateral, lack of a regular trading market, extended settlement periods, liquidity risks, prepayment risks, and lack of publicly available information. Loans that are deemed to be liquid at the time of purchase may become illiquid. No active trading market may exist for some Loans and certain Loans may be subject to restrictions on resale. The inability to dispose of Loans in a timely fashion could result in losses. Because some Loans may have a more limited secondary market, liquidity risk may be more pronounced for certain underlying funds than for funds that invest primarily in other types of fixed income instruments or equity securities. When Loans are prepaid, an underlying fund may have to reinvest in securities with a lower yield or fail to recover additional amounts (i.e., premiums) paid for Loans, resulting in an unexpected capital loss and/or a decrease in the amount of dividends and yield.

Exchange Traded Notes Risk. The value of an ETN may be influenced by time to maturity, level of supply and demand for the ETN, volatility and lack of liquidity in underlying commodities markets, changes in the applicable interest rates, changes in the issuer’s credit rating and economic, legal, political or geographic events that affect the referenced commodity. The value of the ETN may drop due to a downgrade in the issuer’s credit rating, even if the underlying index remains unchanged. Investments in ETNs are subject to the risks facing income securities in general including the risk that a counterparty will fail to make payments when due or default.

Redemption Risk. The Fund could experience a loss when selling securities to meet redemption requests by shareholders. The risk of loss increases if the redemption requests are unusually large or frequent, occur in times of overall market turmoil or declining prices for the securities sold, or when the securities the Fund wishes to or is required to sell are illiquid.

Investments in the Fund are not deposits or obligations of, or guaranteed or endorsed by, any bank and are not insured or guaranteed by the FDIC, the Federal Reserve Board or any other government agency.

You could lose money investing in the Fund.

Risk Lose Money [Text]

rr_RiskLoseMoney

You could lose money investing in the Fund.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

Investments in the Fund are not deposits or obligations of, or guaranteed or endorsed by, any bank and are not insured or guaranteed by the FDIC, the Federal Reserve Board or any other government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

The Fund’s Past Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The Fund commenced operations on March 31, 2011 and has limited performance history. Although past performance of a Fund is no guarantee of how it will perform in the future, historical performance may give you some indication of the risks of investing in the Fund.

Performance One Year or Less [Text]

rr_PerformanceOneYearOrLess

The Fund commenced operations on March 31, 2011 and has limited performance history.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Although past performance of a Fund is no guarantee of how it will perform in the future, historical performance may give you some indication of the risks of investing in the Fund.

A, C, Select Shares | JPMorgan Diversified Real Return Fund | Class A

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases, as % of Offering Price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

4.50%

Maximum Deferred Sales Charge (Load) as % of Original Cost of the Shares

rr_MaximumDeferredSalesChargeOverOther

none

^[1]

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution (Rule 12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder Service Fees

rr_Component1OtherExpensesOverAssets

0.25%

Remainder of Other Expenses

rr_Component2OtherExpensesOverAssets

0.69%

Other Expenses

rr_OtherExpensesOverAssets

0.94%

Acquired Fund Fees and Expenses (Underlying Fund)

rr_AcquiredFundFeesAndExpensesOverAssets

0.61%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.90%

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.68%)

^[2]

Total Annual Fund Operating Expenses After Fee Waivers and Expense Reimbursements

rr_NetExpensesOverAssets

1.22%

^[2]

1 Year

rr_ExpenseExampleYear01

569

3 Years

rr_ExpenseExampleYear03

957

5 Years

rr_ExpenseExampleYear05

1,370

10 Years

rr_ExpenseExampleYear10

2,519

1 Year

rr_ExpenseExampleNoRedemptionYear01

569

3 Years

rr_ExpenseExampleNoRedemptionYear03

957

5 Years

rr_ExpenseExampleNoRedemptionYear05

1,370

10 Years

rr_ExpenseExampleNoRedemptionYear10

2,519

A, C, Select Shares | JPMorgan Diversified Real Return Fund | Class C

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases, as % of Offering Price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (Load) as % of Original Cost of the Shares

rr_MaximumDeferredSalesChargeOverOther

1.00%

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution (Rule 12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.75%

Shareholder Service Fees

rr_Component1OtherExpensesOverAssets

0.25%

Remainder of Other Expenses

rr_Component2OtherExpensesOverAssets

0.78%

Other Expenses

rr_OtherExpensesOverAssets

1.03%

Acquired Fund Fees and Expenses (Underlying Fund)

rr_AcquiredFundFeesAndExpensesOverAssets

0.61%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

2.49%

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.77%)

^[2]

Total Annual Fund Operating Expenses After Fee Waivers and Expense Reimbursements

rr_NetExpensesOverAssets

1.72%

^[2]

1 Year

rr_ExpenseExampleYear01

275

3 Years

rr_ExpenseExampleYear03

702

5 Years

rr_ExpenseExampleYear05

1,256

10 Years

rr_ExpenseExampleYear10

2,768

1 Year

rr_ExpenseExampleNoRedemptionYear01

175

3 Years

rr_ExpenseExampleNoRedemptionYear03

702

5 Years

rr_ExpenseExampleNoRedemptionYear05

1,256

10 Years

rr_ExpenseExampleNoRedemptionYear10

2,768

A, C, Select Shares | JPMorgan Diversified Real Return Fund | Select Class

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases, as % of Offering Price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (Load) as % of Original Cost of the Shares

rr_MaximumDeferredSalesChargeOverOther

none

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution (Rule 12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Service Fees

rr_Component1OtherExpensesOverAssets

0.25%

Remainder of Other Expenses

rr_Component2OtherExpensesOverAssets

0.65%

Other Expenses

rr_OtherExpensesOverAssets

0.90%

Acquired Fund Fees and Expenses (Underlying Fund)

rr_AcquiredFundFeesAndExpensesOverAssets

0.61%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.61%

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.64%)

^[2]

Total Annual Fund Operating Expenses After Fee Waivers and Expense Reimbursements

rr_NetExpensesOverAssets

0.97%

^[2]

1 Year

rr_ExpenseExampleYear01

99

3 Years

rr_ExpenseExampleYear03

445

5 Years

rr_ExpenseExampleYear05

816

10 Years

rr_ExpenseExampleYear10

1,857

1 Year

rr_ExpenseExampleNoRedemptionYear01

99

3 Years

rr_ExpenseExampleNoRedemptionYear03

445

5 Years

rr_ExpenseExampleNoRedemptionYear05

816

10 Years

rr_ExpenseExampleNoRedemptionYear10

1,857

[1] (under $1 million)

[2] The Fund's adviser, administrator and distributor (the Service Providers) have contractually agreed to waive fees and/or reimburse expenses to the extent Total Annual Fund Operating Expenses (excluding Acquired Fund Fees and Expenses (Underlying Fund), dividend expenses related to short sales, interest, taxes, expenses related to litigation and potential litigation, extraordinary expenses and expenses related to the Board of Trustees' deferred compensation plan) exceed 0.61%, 1.11%, and 0.36% of the average daily net assets of the Class A, Class C and Select Class Shares, respectively. This contract cannot be terminated prior to 1/1/14 at which time the Service Providers will determine whether or not to renew or revise it.

XML

Document and Entity Information	12 Months Ended
	Dec. 28, 2012
Risk/Return:
Document Type	485BPOS
Document Period End Date	Aug. 31, 2012
Registrant Name	JPMorgan Trust I
Central Index Key	0001217286
Amendment Flag	false
Document Creation Date	Dec. 19, 2012
Document Effective Date	Dec. 28, 2012
Prospectus Date	Dec. 28, 2012

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

JPMorgan Trust I

Prospectus Date

rr_ProspectusDate

Dec. 28, 2012

A, C, Select Shares | JPMorgan Floating Rate Income Fund

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

JPMorgan Floating Rate Income Fund

Class/Ticker: A/JPHAX; C/JPHCX; Select/JPHSX

Objective [Heading]

rr_ObjectiveHeading

What is the goal of the Fund?

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks to provide current income

Objective, Secondary [Text Block]

rr_ObjectiveSecondaryTextBlock

with a secondary objective of capital appreciation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in the J.P. Morgan Funds. More information about these and other discounts is available from your financial intermediary and in “How to Do Business with the Fund — SALES CHARGES” on page 17 of the prospectus and in “PURCHASES, REDEMPTIONS AND EXCHANGES” in Appendix A to Part II of the Statement of Additional Information.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

SHAREHOLDER FEES (Fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

ANNUAL FUND OPERATING EXPENSES
(Expenses that you pay each year as a percentage of the value
of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

12/31/13

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund’s performance. During the Fund’s most recent fiscal period, the Fund’s portfolio turnover rate was 65% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

65.00%

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in the J.P. Morgan Funds.

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

100,000

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses are equal to the total annual fund operating expenses after fee waivers and expense reimbursements shown in the fee table through 12/31/13 and total annual fund operating expenses thereafter. Your actual costs may be higher or lower.

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

IF YOU SELL YOUR SHARES, YOUR COSTS WOULD BE:

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

IF YOU DO NOT SELL YOUR SHARES, YOUR COSTS
WOULD BE:

Strategy [Heading]

rr_StrategyHeading

What are the Fund’s main investment strategies?

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Fund invests mainly in floating rate debt instruments issued by corporations. These investments include leveraged loan assignments and participations (Loans) and commitments to purchase Loans (Unfunded Commitments). Loans will typically consist of senior secured floating rate loans (Senior Secured Loans) but may also include unsecured loans, second lien loans, bridge loans or loans that are junior or subordinated (Junior Loans). Leveraged loans are considered by the adviser to be below investment grade debt securities (also known as “junk bonds,” “high yield securities” and “non-investment grade bonds”). In addition to investing in Loans, as part of its principal strategy, the Fund may also invest in other floating rate high yield securities such as corporate bonds. In addition, the Fund may invest in other corporate debt securities, warrants and rights, convertible securities, common stock, preferred stock and cash equivalents.

Under normal circumstances, the Fund will invest at least 80% of its Assets in floating rate instruments including Loans, convertible securities, corporate bonds, preferred shares and other floating rate debt instruments. Floating rate instruments also include equity securities (or rights to acquire securities) that are structured to pay a floating rate of income and money market investment companies. “Assets” means net assets plus the amount of borrowings for investment purposes.

The Fund may invest up to 100% of the Fund’s total assets in below investment grade securities or unrated securities that the adviser deems to be of equivalent quality. Such securities may include so-called “distressed debt.” Distressed debt includes securities of issuers experiencing financial or operating difficulties, securities where the issuer has defaulted in the payment of interest or principal or in the performance of its covenants or agreements, securities of issuers that may be involved in bankruptcy proceedings, reorganizations or financial restructurings or securities of issuers operating in troubled industries. Generally, the Fund will not invest, at the time of investment, more than 40% of total assets in unrated securities and securities rated CCC+/Caa1 or lower using the highest rating assigned to each instrument by a nationally recognized statistical rating organization (NRSRO).

The Fund generally invests in securities issued in U.S. dollars including U.S. dollar-denominated securities issued by foreign corporations and U.S. affiliates of foreign corporations. Up to 20% of the Fund’s total assets may be invested in non-U.S. dollar denominated securities in foreign and “emerging markets.” Generally, the Fund attempts to minimize currency exposure to foreign and emerging markets through hedging.

Because of the nature of the Fund’s investments, the Fund may, from time to time, acquire securities and instruments related to its holdings that are issued in connection with amendments, waivers, conversions, exchanges, warrants, and rights offerings, as well as bankruptcy reorganizations and other financial or other corporate reorganizations. These securities and instruments include the types of securities that the Fund invests in directly as part of its principal strategy such as common stock, preferred stock, warrants and rights, corporate bonds, and notes, as well as other types of securities and instruments such as pay-in-kind (PIK) notes, zero-coupon notes, and private placements.

In addition to direct investments in securities, derivatives, which are instruments that have a value based on another instrument, exchange rate or index, may be used as substitutes for securities in which the Fund can invest. The Fund may use futures contracts, options, swaps, forwards and other foreign currency transactions in the management of portfolio investments. The Fund may also use such derivatives to hedge various investments, for risk management and/or to increase income or gain to the Fund. In particular, the Fund may invest in swaps structured as credit default swaps related to individual Loans or other securities or indexes of Loans or securities to gain exposure to Loans and other securities, to mitigate risk exposure and to manage cash flow needs. In addition, the Fund may use currency derivatives to hedge non-dollar investments back to the U.S. dollar.

The adviser buys and sells securities and investments for the Fund through a value-oriented, bottom-up research process that utilizes fundamental credit analysis to identify favorable and unfavorable risk/reward opportunities across sectors, industries and structures while minimizing credit risk. Such fundamental credit analysis includes focusing on the issuer’s underlying business prospects, capital requirements, capital structure, collateral, covenants, enterprise value, liquidity and management. The adviser strives to mitigate credit risk with meticulous research of sectors and issuers and will search for opportunities in inefficient sectors of the market where credit ratings have not caught up with fundamentals. The adviser’s fundamental analysis will be complemented by its macroeconomic insights as they relate to default rates and capital market liquidity. In addition to traditional fundamental credit and valuation analysis, the adviser focuses on identifying the cause (or potential causes) of a company’s distress and identifying catalysts that drive value creation and downside risk. To assess downside risk and upside potential of a particular investment, the adviser focuses on analyzing the potential volatility of a company’s enterprise value relative to the leveraged market value of the prospective or current investment.

Risk [Heading]

rr_RiskHeading

The Fund’s Main Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

The Fund is subject to management risk and may not achieve its objective if the adviser’s expectations regarding particular securities or markets are not met.

An investment in this Fund or any other fund may not provide a complete investment program. The suitability of an investment in the Fund should be considered based on the investment objective, strategies and risks described in this Prospectus, considered in light of all of the other investments in your portfolio, as well as your risk tolerance, financial goals and time horizons. You may want to consult with a financial advisor to determine if this Fund is suitable for you.

General Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions.

Interest Rate and Credit Risk. The Fund’s investments in bonds and other debt securities will change in value based on changes in interest rates. If rates increase, the value of these investments generally declines. The Fund invests in variable and floating rate Loans and other variable and floating rate securities. Although these instruments are generally less sensitive to interest rate changes than other fixed rate instruments, the value of floating rate Loans and other securities may decline if their interest rates do not rise as quickly, or as much, as general interest rates. The Fund’s investments are subject to the risk that the issuer or the counterparty will fail to make payments when due or default completely. If an issuer’s financial condition worsens, the credit quality of the issuer may deteriorate, leading to greater price volatility and potentially making it difficult for the Fund to sell such investments.

High Yield Securities and Loan Risk. The Fund invests in securities including junk bonds, Loans and instruments that are issued by companies that are highly leveraged, less creditworthy or financially distressed. These investments are considered to be speculative and are subject to greater risk of loss, greater sensitivity to interest rate and economic changes, valuation difficulties and potential illiquidity. Such investments are subject to additional risks including subordination to other creditors, no collateral or limited rights in collateral, lack of a regular trading market, extended settlement periods, liquidity risks, prepayment risks, and lack of publicly available information. High yield securities and Loans that are deemed to be liquid at the time of purchase may become illiquid. No active trading market may exist for some securities and certain investments may be subject to restrictions on resale. The inability to dispose of these securities in a timely fashion could result in losses to the Fund. Because some securities may have a more limited secondary market, liquidity risk is more pronounced for the Fund than for funds that invest primarily in other types of fixed income instruments or equity securities. When Loans and other securities are prepaid, the Fund may have to reinvest in securities with a lower yield or fail to recover additional amounts (i.e., premiums) paid for these securities, resulting in an unexpected capital loss and/or a decrease in the amount of dividends and yield.

Foreign Securities and Emerging Markets Risk. U.S. dollar-denominated securities of foreign issuers or U.S. affiliates of foreign issuers may be subject to additional risks not faced by domestic issuers. These risks include political and economic risks, civil conflicts and war, greater volatility, expropriation and nationalization risks, and regulatory issues facing issuers in such countries. The Fund may also invest in non-U.S. dollar denominated securities. Investments in non-U.S. dollar denominated securities are subject to risks in addition to those summarized above including currency fluctuations, higher transaction costs, delayed settlement, possible foreign controls on investment, liquidity risks, and less stringent investor protection and disclosure standards of foreign markets. In certain markets where securities and other instruments are not traded “delivery versus payment,” the Fund may not receive timely payment for securities or other instruments it has delivered and may be subject to increased risk that the counterparty will fail to make payments when due or default completely. These risks are magnified in countries in “emerging markets.”

Derivatives Risk. Derivatives, including futures contracts, options, swaps, forwards and other foreign currency transactions, may be riskier than other types of investments because they may be more sensitive to changes in economic and market conditions and could result in losses that significantly exceed the Fund’s original investment. Many derivatives create leverage thereby causing the Fund to be more volatile than it would have been if it had not used derivatives. Derivatives also expose the Fund to counterparty risk (the risk that the derivative counterparty will not fulfill its contractual obligations), including the credit risk of the derivative counterparty. Certain derivatives are synthetic instruments that attempt to replicate the performance of certain reference assets. With regard to such derivatives, the Fund does not have a claim on the reference assets and is subject to enhanced counterparty risk.

Equity Market Risk. The price of equity securities may rise or fall because of changes in the broad market or changes in a company’s financial condition, sometimes rapidly or unpredictably. These price movements may result from factors affecting individual companies, sectors or industries selected for the Fund’s portfolio or the securities market as a whole, such as changes in economic or political conditions. When the value of the Fund’s securities goes down, your investment in the Fund decreases in value.

Convertible Securities Risk. The value of convertible securities tends to decline as interest rates rise and, because of the conversion feature, tends to vary with fluctuations in the market value of the underlying securities.

Redemption Risk. The Fund could experience a loss when selling securities to meet redemption requests. The risk of loss increases if the redemption requests are unusually large or frequent, occur in times of overall market turmoil or declining prices for the securities sold, or when the securities the Fund wishes to or is required to sell are illiquid.

Investments in the Fund are not deposits or obligations of, or guaranteed or endorsed by, any bank and are not insured or guaranteed by the FDIC, the Federal Reserve Board or any other government agency.

You could lose money investing in the Fund.

Risk Lose Money [Text]

rr_RiskLoseMoney

You could lose money investing in the Fund.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

Investments in the Fund are not deposits or obligations of, or guaranteed or endorsed by, any bank and are not insured or guaranteed by the FDIC, the Federal Reserve Board or any other government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

The Fund’s Past Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The Fund commenced operations on June 1, 2011 and has limited performance history. Although past performance of a Fund is no guarantee of how it will perform in the future, historical performance may give you some indication of the risks of investing in the Fund.

Performance One Year or Less [Text]

rr_PerformanceOneYearOrLess

The Fund commenced operations on June 1, 2011 and has limited performance history.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Although past performance of a Fund is no guarantee of how it will perform in the future, historical performance may give you some indication of the risks of investing in the Fund.

A, C, Select Shares | JPMorgan Floating Rate Income Fund | Class A

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases as a % of the Offering Price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

3.75%

Maximum Deferred Sales Charge (Load) as a % of Original Cost of the Shares

rr_MaximumDeferredSalesChargeOverOther

none

^[1]

Management Fees

rr_ManagementFeesOverAssets

0.55%

Distribution (Rule 12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder Service Fees

rr_Component1OtherExpensesOverAssets

0.25%

Remainder of Other Expenses

rr_Component2OtherExpensesOverAssets

0.15%

Other Expenses

rr_OtherExpensesOverAssets

0.40%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.03%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.23%

Fee Waivers and Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.20%)

^[2]

Total Annual Fund Operating Expenses After Fee Waivers and Expense Reimbursements

rr_NetExpensesOverAssets

1.03%

^[2]

1 Year

rr_ExpenseExampleYear01

476

3 Years

rr_ExpenseExampleYear03

732

5 Years

rr_ExpenseExampleYear05

1,007

10 Years

rr_ExpenseExampleYear10

1,791

1 Year

rr_ExpenseExampleNoRedemptionYear01

476

3 Years

rr_ExpenseExampleNoRedemptionYear03

732

5 Years

rr_ExpenseExampleNoRedemptionYear05

1,007

10 Years

rr_ExpenseExampleNoRedemptionYear10

1,791

A, C, Select Shares | JPMorgan Floating Rate Income Fund | Class C

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases as a % of the Offering Price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (Load) as a % of Original Cost of the Shares

rr_MaximumDeferredSalesChargeOverOther

1.00%

Management Fees

rr_ManagementFeesOverAssets

0.55%

Distribution (Rule 12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.75%

Shareholder Service Fees

rr_Component1OtherExpensesOverAssets

0.25%

Remainder of Other Expenses

rr_Component2OtherExpensesOverAssets

0.13%

Other Expenses

rr_OtherExpensesOverAssets

0.38%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.03%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.71%

Fee Waivers and Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.18%)

^[2]

Total Annual Fund Operating Expenses After Fee Waivers and Expense Reimbursements

rr_NetExpensesOverAssets

1.53%

^[2]

1 Year

rr_ExpenseExampleYear01

256

3 Years

rr_ExpenseExampleYear03

521

5 Years

rr_ExpenseExampleYear05

911

10 Years

rr_ExpenseExampleYear10

2,004

1 Year

rr_ExpenseExampleNoRedemptionYear01

156

3 Years

rr_ExpenseExampleNoRedemptionYear03

521

5 Years

rr_ExpenseExampleNoRedemptionYear05

911

10 Years

rr_ExpenseExampleNoRedemptionYear10

2,004

A, C, Select Shares | JPMorgan Floating Rate Income Fund | Select Class

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases as a % of the Offering Price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (Load) as a % of Original Cost of the Shares

rr_MaximumDeferredSalesChargeOverOther

none

Management Fees

rr_ManagementFeesOverAssets

0.55%

Distribution (Rule 12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Service Fees

rr_Component1OtherExpensesOverAssets

0.25%

Remainder of Other Expenses

rr_Component2OtherExpensesOverAssets

0.14%

Other Expenses

rr_OtherExpensesOverAssets

0.39%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.03%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.97%

Fee Waivers and Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.19%)

^[2]

Total Annual Fund Operating Expenses After Fee Waivers and Expense Reimbursements

rr_NetExpensesOverAssets

0.78%

^[2]

1 Year

rr_ExpenseExampleYear01

80

3 Years

rr_ExpenseExampleYear03

290

5 Years

rr_ExpenseExampleYear05

518

10 Years

rr_ExpenseExampleYear10

1,172

1 Year

rr_ExpenseExampleNoRedemptionYear01

80

3 Years

rr_ExpenseExampleNoRedemptionYear03

290

5 Years

rr_ExpenseExampleNoRedemptionYear05

518

10 Years

rr_ExpenseExampleNoRedemptionYear10

1,172

[1] (under $1 million)

[2] The Fund's adviser, administrator and distributor (the Service Providers) have contractually agreed to waive fees and/or reimburse expenses to the extent Total Annual Fund Operating Expenses (excluding Acquired Fund Fees and Expenses, dividend expenses related to short sales, interest, taxes, expenses related to litigation and potential litigation, extraordinary expenses and expenses related to the Board of Trustees' deferred compensation plan) exceed 1.00%, 1.50% and 0.75% of the average daily net assets of Class A, Class C and Select Class Shares, respectively. This contract cannot be terminated prior to 1/1/14, at which time the Service Providers will determine whether or not to renew or revise it.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

JPMorgan Trust I

Prospectus Date

rr_ProspectusDate

Dec. 28, 2012

R2, R5 Shares | JPMorgan Diversified Real Return Fund

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

JPMorgan Diversified Real Return Fund

Class/Ticker: R2/JRFRX; R5/JRLRX

Objective [Heading]

rr_ObjectiveHeading

What is the goal of the Fund?

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks to maximize long-term real return.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

ANNUAL FUND OPERATING EXPENSES
(Expenses that you pay each year as a percentage of the value
of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

12/31/13

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund’s performance. During the Fund’s most recent fiscal year, the Fund’s portfolio turnover rate was 42% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

42.00%

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses are equal to the total annual fund operating expenses after fee waivers and expense reimbursements shown in the fee table through 12/31/13 and total annual fund operating expenses thereafter. Your actual costs may be higher or lower.

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

WHETHER OR NOT YOU SELL YOUR SHARES, YOUR
COST WOULD BE:

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

WHETHER OR NOT YOU SELL YOUR SHARES, YOUR
COST WOULD BE:

Strategy [Heading]

rr_StrategyHeading

What are the Fund’s main investment strategies?

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Fund is a fund of funds that seeks real return by allocating its assets across a combination of inflation sensitive asset classes. “Real return” means the return in excess of the actual rate of inflation. In addition, by allocating across multiple asset classes, the Fund seeks to have lower volatility than the S&P 500. The actual rate of inflation is measured by the Consumer Price Index for All Urban Consumers (CPI-U) over time.

The Fund invests in other J.P. Morgan Funds and, to a lesser extent, in exchange traded funds (ETFs) (collectively with the J.P. Morgan Funds, the “underlying funds”) and exchange traded notes (ETNs). In seeking to meet its objective, the Fund invests in underlying funds and ETNs that provide exposure to inflation sensitive securities and asset classes such as Treasury Inflation Protected Securities (TIPS) and CPI-U swaps, real estate investment trusts (REITs), commodities, natural resources and infrastructure, including companies that provide services such as transportation systems, water supply and power. The Fund also invests in underlying funds that have exposure to additional inflation sensitive securities and asset class including underlying funds that have significant exposure to below investment grade securities and loan participations and assignments (Loans). Below investment grade securities are also known as “junk bonds”. The Fund may invest in underlying funds that make investments in international and emerging markets and utilize non-dollar denominated investments.

Asset allocation decisions are primarily based on the adviser’s evaluations of U.S. price trends as measured by the CPI-U and the relative attractiveness of the asset classes in which the Fund invests.

The portfolio managers use a flexible asset allocation approach in managing the Fund. Based on current inflationary views as of the date of the prospectus, it is anticipated that approximately 60% of the Fund’s assets will be invested in fixed income funds that invest in inflation-protected securities such as TIPS or that utilize strategies such as combining a core portfolio of fixed income securities with CPI-U swaps to create the equivalent of a portfolio of inflation-protected fixed income securities. Approximately 25% of the Fund’s assets are expected to have exposure to equity funds or ETNs that invest in securities in REITs or real estate related-securities, natural resources, and infrastructure. The Fund is also anticipated to invest approximately 10% of its assets in underlying funds or ETNs that have exposure to commodities, and 5% in cash and cash equivalents. The Fund’s allocations may deviate substantially from these ranges.

In addition to investing in underlying funds and ETNs, the Fund may utilize derivatives and invest directly in equity securities. Derivatives are instruments that have a value based on another instrument, exchange rate or index. The Fund may utilize forward currency transactions to hedge exposure to non-dollar denominated investments back to the U.S. dollar. The Fund may also utilize exchange traded futures for cash management and to gain exposure to equities pending investment in underlying funds.

In buying and selling investments for the Fund, the adviser employs a four-step process that combines 1) strategic asset allocation research, 2) asset allocation based on the portfolio managers’ intermediate term outlook, 3) analysis of the investment capabilities of the underlying funds and portfolio managers, and 4) construction of the portfolio and rebalancing. Through this process, the adviser conducts extensive research on inflationary markets and the inflation hedging capabilities of various asset classes. In consideration of the risk and return objectives of the Fund, the adviser determines the weightings of the asset classes, selects the underlying funds and other instruments, and constructs the portfolio. On an ongoing basis, the adviser monitors the portfolio and makes tactical asset allocation changes and rebalances the portfolio to realign the weightings of the underlying funds and asset classes as needed based on the portfolio managers’ view of the inflationary cycle and current market outlook.

Risk [Heading]

rr_RiskHeading

The Fund’s Main Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

The Fund is subject to management risk and may not achieve its objective if the adviser’s expectations about particular securities or markets are not met. The Fund is exposed to the risks summarized below through both its direct investments and investments in underlying funds.

An investment in this Fund or any other fund may not provide a complete investment program. The suitability of an investment in the Fund should be considered based on the investment objective, strategies and risks described in this prospectus, considered in light of all of the other investments in your portfolio, as well as your risk tolerance, financial goals and time horizons. You may want to consult with a financial advisor to determine if this Fund is suitable for you.

General Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions.

Investment Company and ETF Risk. The Fund invests in other J.P. Morgan Funds and ETFs as a primary strategy, so the Fund’s investment performance and risks are directly related to the performance and risks of the underlying funds. Shareholders bear both their proportionate share of the Fund’s expenses and similar expenses of the underlying funds. Because the adviser and/or its affiliates provide services and receive fees from the underlying J.P. Morgan Funds, the Fund’s investments in such underlying funds benefit the adviser and/or its affiliates. In addition, the Fund may hold a significant percentage of the shares of an underlying fund. As a result, the Fund’s investments in an underlying fund may create a conflict of interest. Certain ETFs and other underlying funds may not be actively managed. Securities may be purchased, held and sold by such funds when an actively managed fund would not do so. ETFs may trade at a price below their net asset value (also known as a discount).

Strategy Risk. The Fund’s investment strategies may not work to maximize real return. The Fund may invest in underlying funds that utilize derivatives and debt securities to mimic a portfolio of inflation-protected bonds. There is no guarantee that this strategy will be effective. In addition, some of the underlying funds make direct investments in inflation-protected securities. Unlike conventional bonds, the principal or interest on inflation-protected securities such as TIPS is adjusted periodically to a specified rate of inflation (e.g., CPI-U). There can be no assurance that the inflation index used will accurately measure the actual rate of inflation. These securities may lose value in the event that the actual rate of inflation is different than the rate of the inflation index. The Fund may also use underlying funds or investments that utilize certain types of securities as a proxy for inflation-protected securities such as REITs, real estate, commodities or infrastructure. These investments may not reflect the impact of inflation.

Commodity Risk. Exposure to commodities, commodity-related securities and derivatives may subject an underlying fund to greater volatility than investments in traditional securities, particularly if the instruments involve leverage. The value of commodity-linked investments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity. In addition, to the extent that an underlying fund gains exposure to an asset through synthetic replication by investing in commodity-linked investments rather than directly in the asset, it may not have a claim on the applicable underlying asset and will be subject to enhanced counterparty risk.

Natural Resources Risk. Equity and equity-like securities of natural resources companies and associated businesses may be negatively impacted by variations, often rapid, in the commodities markets, the supply of and demand for specific products and services, the supply of and demand for oil and gas, the price of oil and gas, exploration and production spending, government regulation, economic conditions, events relating to international political developments, environmental incidents, energy conservation and the success of exploration projects. Therefore, the securities of companies in the natural resources sector may experience more price volatility than securities of companies in other industries.

Securities of Real Estate Companies and REITs Risk. Investments in real estate securities, including REITs, are subject to the same risks as direct investments in real estate and will depend on the value of the underlying real estate. These risks include default, prepayment, changes in value resulting from changes in interest rates and demand for real and rental property, and the management skill and creditworthiness of REIT issuers. The Fund and the underlying funds will indirectly bear their proportionate share of expenses, including management fees, paid by each REIT in which they invest in addition to the expenses of the underlying funds.

Infrastructure Risk. Infrastructure-related companies are subject to a variety of factors that may adversely affect their business or operations including high interest costs, costs associated with compliance with and changes in environmental and other regulations, difficulty in raising capital, increased competition, and uncertainty concerning the availability of fuel at reasonable prices and other factors. Infrastructure-related securities may be issued by companies that are highly leveraged, less creditworthy or financially distressed (also known as junk bonds). These investments are considered to be speculative and are subject to greater risk of loss, greater sensitivity to interest rate and economic changes, valuation difficulties, and potential illiquidity. Infrastructure-related companies may also be subject to “Foreign Securities and Emerging Markets Risk”.

Foreign Securities and Emerging Markets Risk. Investments in foreign currencies and foreign issuers are subject to additional risks, including political and economic risks, civil conflicts and war, greater volatility, currency fluctuations, higher transactions costs, delayed settlement, possible foreign controls on investment, expropriation and nationalization risks, liquidity risks, and less stringent investor protection and disclosure standards of foreign markets. In certain markets where securities and other instruments are not traded “delivery versus payment,” the Fund may not receive timely payment for securities or other instruments it has delivered and may be subject to increased risk that the counterparty will fail to make payments when due or default completely. Events and evolving conditions in certain economies or markets may alter the risks associated with investments tied to countries or regions that historically were perceived as comparatively stable becoming riskier and more volatile. These risks are magnified in countries in “emerging markets.”

Income Securities Risk. Investments in income securities will change in value based on changes in interest rates and are subject to credit risk, the risk that a counterparty will fail to make payments when due or default. If rates rise, the value of these investments drops. Certain underlying funds invest in variable and floating rate loan assignments and participations (Loans) and other variable and floating rate securities. Although these instruments are generally less sensitive to interest rate changes than other fixed rate instruments, the value of floating rate Loans and other securities may decline if their interest rates do not rise as quickly, or as much, as general interest rates. Certain underlying funds invest in mortgage-related and asset-backed securities including so-called “sub-prime” mortgages that are subject to certain other risks including prepayment and call risks. When mortgages and other obligations are prepaid and when securities are called, an underlying fund may have to reinvest in securities with a lower yield or fail to recover additional amounts (i.e., premiums) paid for securities with higher interest rates, resulting in an unexpected capital loss and/or a decrease in the amount of dividends and yield. Mortgage-related and asset-backed securities may: decline in value, face valuation difficulties, be more volatile and/or be illiquid.

Equity Securities Risk. Exposure to equity securities (such as stocks) creates more volatility and carries more risks than some other forms of investment. The price of equity securities may rise or fall because of economic or political changes or changes in a company’s financial condition, sometimes rapidly or unpredictably. These price movements may result from factors affecting individual companies, sectors or industries selected for an underlying fund’s portfolio or the securities market as a whole, such as changes in economic or political conditions.

Derivatives Risk. Derivatives, including forward currency contracts, futures, and commodity-linked derivatives and swaps, may be riskier than other types of investments because they may be more sensitive to changes in economic and market conditions and could result in losses that significantly exceed the Fund’s original investment. Many derivatives create leverage thereby causing the Fund to be more volatile than it would have been if it had not been exposed to such derivatives. Derivatives also expose the Fund to counterparty risk (the risk that the derivative counterparty will not fulfill its contractual obligations), including the credit risk of the derivative counterparty. Certain derivatives are synthetic instruments that attempt to replicate the performance of certain reference assets. With regard to such derivatives, the Fund does not have a claim on the reference assets and is subject to enhanced counterparty risk. Derivatives may not perform as expected, so the Fund may not realize the intended benefits. When used for hedging, the change in value of a derivative may not correlate as expected with the security being hedged. In addition, given their complexity, derivatives expose the Fund to risks of mispricing or improper valuation.

High Yield Securities and Loan Risk. The Fund may be exposed to investments in securities including junk bonds and Loans and instruments that are issued by companies that are highly leveraged, less creditworthy or financially distressed. These investments (commonly known as junk bonds) are considered to be speculative and are subject to greater risk of loss, greater sensitivity to interest rate and economic changes, valuation difficulties, and potential illiquidity.

Loans are subject to additional risks including subordination to other creditors, no collateral or limited rights in collateral, lack of a regular trading market, extended settlement periods, liquidity risks, prepayment risks, and lack of publicly available information. Loans that are deemed to be liquid at the time of purchase may become illiquid. No active trading market may exist for some Loans and certain Loans may be subject to restrictions on resale. The inability to dispose of Loans in a timely fashion could result in losses. Because some Loans may have a more limited secondary market, liquidity risk may be more pronounced for certain underlying funds than for funds that invest primarily in other types of fixed income instruments or equity securities. When Loans are prepaid, an underlying fund may have to reinvest in securities with a lower yield or fail to recover additional amounts (i.e., premiums) paid for Loans, resulting in an unexpected capital loss and/or a decrease in the amount of dividends and yield.

Exchange Traded Notes Risk. The value of an ETN may be influenced by time to maturity, level of supply and demand for the ETN, volatility and lack of liquidity in underlying commodities markets, changes in the applicable interest rates, changes in the issuer’s credit rating and economic, legal, political or geographic events that affect the referenced commodity. The value of the ETN may drop due to a downgrade in the issuer’s credit rating, even if the underlying index remains unchanged. Investments in ETNs are subject to the risks facing income securities in general including the risk that a counterparty will fail to make payments when due or default.

Redemption Risk. The Fund could experience a loss when selling securities to meet redemption requests by shareholders. The risk of loss increases if the redemption requests are unusually large or frequent, occur in times of overall market turmoil or declining prices for the securities sold, or when the securities the Fund wishes to or is required to sell are illiquid.

Investments in the Fund are not deposits or obligations of, or guaranteed or endorsed by, any bank and are not insured or guaranteed by the FDIC, the Federal Reserve Board or any other government agency.

You could lose money investing in the Fund.

Risk Lose Money [Text]

rr_RiskLoseMoney

You could lose money investing in the Fund.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

Investments in the Fund are not deposits or obligations of, or guaranteed or endorsed by, any bank and are not insured or guaranteed by the FDIC, the Federal Reserve Board or any other government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

The Fund’s Past Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The Fund commenced operations on March 31, 2011 and has limited performance history. Although past performance of a Fund is no guarantee of how it will perform in the future, historical performance may give you some indication of the risks of investing in the Fund.

Performance One Year or Less [Text]

rr_PerformanceOneYearOrLess

The Fund commenced operations on March 31, 2011 and has limited performance history.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Although past performance of a Fund is no guarantee of how it will perform in the future, historical performance may give you some indication of the risks of investing in the Fund.

R2, R5 Shares | JPMorgan Diversified Real Return Fund | Class R2

Risk/Return:

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution (Rule 12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.50%

Shareholder Service Fees

rr_Component1OtherExpensesOverAssets

0.25%

Remainder of Other Expenses

rr_Component2OtherExpensesOverAssets

0.62%

Other Expenses

rr_OtherExpensesOverAssets

0.87%

Acquired Fund Fees and Expenses (Underlying Fund)

rr_AcquiredFundFeesAndExpensesOverAssets

0.61%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

2.08%

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.61%)

^[1]

Total Annual Fund Operating Expenses After Fee Waivers and Expense Reimbursements

rr_NetExpensesOverAssets

1.47%

^[1]

1 Year

rr_ExpenseExampleYear01

150

3 Years

rr_ExpenseExampleYear03

593

5 Years

rr_ExpenseExampleYear05

1,063

10 Years

rr_ExpenseExampleYear10

2,362

1 Year

rr_ExpenseExampleNoRedemptionYear01

150

3 Years

rr_ExpenseExampleNoRedemptionYear03

593

5 Years

rr_ExpenseExampleNoRedemptionYear05

1,063

10 Years

rr_ExpenseExampleNoRedemptionYear10

2,362

R2, R5 Shares | JPMorgan Diversified Real Return Fund | Class R5

Risk/Return:

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.10%

Distribution (Rule 12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Service Fees

rr_Component1OtherExpensesOverAssets

0.05%

Remainder of Other Expenses

rr_Component2OtherExpensesOverAssets

0.49%

Other Expenses

rr_OtherExpensesOverAssets

0.54%

Acquired Fund Fees and Expenses (Underlying Fund)

rr_AcquiredFundFeesAndExpensesOverAssets

0.61%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.25%

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.38%)

^[1]

Total Annual Fund Operating Expenses After Fee Waivers and Expense Reimbursements

rr_NetExpensesOverAssets

0.87%

^[1]

1 Year

rr_ExpenseExampleYear01

89

3 Years

rr_ExpenseExampleYear03

359

5 Years

rr_ExpenseExampleYear05

650

10 Years

rr_ExpenseExampleYear10

1,478

1 Year

rr_ExpenseExampleNoRedemptionYear01

89

3 Years

rr_ExpenseExampleNoRedemptionYear03

359

5 Years

rr_ExpenseExampleNoRedemptionYear05

650

10 Years

rr_ExpenseExampleNoRedemptionYear10

1,478

[1] The Fund's adviser, administrator and distributor (the Service Providers) have contractually agreed to waive fees and/or reimburse expenses to the extent Total Annual Fund Operating Expenses (excluding Acquired Fund Fees and Expenses (Underlying Fund), dividend expenses related to short sales, interest, taxes, expenses related to litigation and potential litigation, extraordinary expenses and expenses related to the Board of Trustees' deferred compensation plan) exceed 0.86% and 0.26% of the average daily net assets of the Class R2 and Class R5 Shares, respectively. This contract cannot be terminated prior to 1/1/14 at which time the Service Providers will determine whether or not to renew or revise it.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	JPMorgan Trust I
Prospectus Date	rr_ProspectusDate	Dec. 28, 2012
Document Creation Date	dei_DocumentCreationDate	Dec. 19, 2012

XML

A, C, Select Shares | JPMorgan Floating Rate Income Fund

JPMorgan Floating Rate Income Fund

Class/Ticker: A/JPHAX; C/JPHCX; Select/JPHSX

What is the goal of the Fund?

The Fund seeks to provide current income

with a secondary objective of capital appreciation.

Fees and Expenses of the Fund

The following tables describe the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $100,000 in the J.P. Morgan Funds. More information about these and other discounts is available from your financial intermediary and in “How to Do Business with the Fund — SALES CHARGES” on page 17 of the prospectus and in “PURCHASES, REDEMPTIONS AND EXCHANGES” in Appendix A to Part II of the Statement of Additional Information.

SHAREHOLDER FEES (Fees paid directly from your investment)

Shareholder Fees A, C, Select Shares JPMorgan Floating Rate Income Fund	Class A		Class C	Select Class
Maximum Sales Charge (Load) Imposed on Purchases as a % of the Offering Price	3.75%		none	none
Maximum Deferred Sales Charge (Load) as a % of Original Cost of the Shares	none	[1]	1.00%	none

ANNUAL FUND OPERATING EXPENSES
(Expenses that you pay each year as a percentage of the value
of your investment)

Annual Fund Operating Expenses A, C, Select Shares JPMorgan Floating Rate Income Fund		Class A	Class C	Select Class
Management Fees		0.55%	0.55%	0.55%
Distribution (Rule 12b-1) Fees		0.25%	0.75%	none
Other Expenses		0.40%	0.38%	0.39%
Shareholder Service Fees		0.25%	0.25%	0.25%
Remainder of Other Expenses		0.15%	0.13%	0.14%
Acquired Fund Fees and Expenses		0.03%	0.03%	0.03%
Total Annual Fund Operating Expenses		1.23%	1.71%	0.97%
Fee Waivers and Expense Reimbursements	[1]	(0.20%)	(0.18%)	(0.19%)
Total Annual Fund Operating Expenses After Fee Waivers and Expense Reimbursements	[1]	1.03%	1.53%	0.78%

Example

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses are equal to the total annual fund operating expenses after fee waivers and expense reimbursements shown in the fee table through 12/31/13 and total annual fund operating expenses thereafter. Your actual costs may be higher or lower.

IF YOU SELL YOUR SHARES, YOUR COSTS WOULD BE:

Expense Example A, C, Select Shares JPMorgan Floating Rate Income Fund (USD $)	1 Year	3 Years	5 Years	10 Years
CLASS A SHARES ($)	476	732	1,007	1,791
CLASS C SHARES ($)	256	521	911	2,004
SELECT CLASS SHARES ($)	80	290	518	1,172

IF YOU DO NOT SELL YOUR SHARES, YOUR COSTS
WOULD BE:

Expense Example, No Redemption A, C, Select Shares JPMorgan Floating Rate Income Fund (USD $)	1 Year	3 Years	5 Years	10 Years
CLASS A SHARES ($)	476	732	1,007	1,791
CLASS C SHARES ($)	156	521	911	2,004
SELECT CLASS SHARES ($)	80	290	518	1,172

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund’s performance. During the Fund’s most recent fiscal period, the Fund’s portfolio turnover rate was 65% of the average value of its portfolio.

What are the Fund’s main investment strategies?

The Fund invests mainly in floating rate debt instruments issued by corporations. These investments include leveraged loan assignments and participations (Loans) and commitments to purchase Loans (Unfunded Commitments). Loans will typically consist of senior secured floating rate loans (Senior Secured Loans) but may also include unsecured loans, second lien loans, bridge loans or loans that are junior or subordinated (Junior Loans). Leveraged loans are considered by the adviser to be below investment grade debt securities (also known as “junk bonds,” “high yield securities” and “non-investment grade bonds”). In addition to investing in Loans, as part of its principal strategy, the Fund may also invest in other floating rate high yield securities such as corporate bonds. In addition, the Fund may invest in other corporate debt securities, warrants and rights, convertible securities, common stock, preferred stock and cash equivalents.

Under normal circumstances, the Fund will invest at least 80% of its Assets in floating rate instruments including Loans, convertible securities, corporate bonds, preferred shares and other floating rate debt instruments. Floating rate instruments also include equity securities (or rights to acquire securities) that are structured to pay a floating rate of income and money market investment companies. “Assets” means net assets plus the amount of borrowings for investment purposes.

The Fund may invest up to 100% of the Fund’s total assets in below investment grade securities or unrated securities that the adviser deems to be of equivalent quality. Such securities may include so-called “distressed debt.” Distressed debt includes securities of issuers experiencing financial or operating difficulties, securities where the issuer has defaulted in the payment of interest or principal or in the performance of its covenants or agreements, securities of issuers that may be involved in bankruptcy proceedings, reorganizations or financial restructurings or securities of issuers operating in troubled industries. Generally, the Fund will not invest, at the time of investment, more than 40% of total assets in unrated securities and securities rated CCC+/Caa1 or lower using the highest rating assigned to each instrument by a nationally recognized statistical rating organization (NRSRO).

The Fund generally invests in securities issued in U.S. dollars including U.S. dollar-denominated securities issued by foreign corporations and U.S. affiliates of foreign corporations. Up to 20% of the Fund’s total assets may be invested in non-U.S. dollar denominated securities in foreign and “emerging markets.” Generally, the Fund attempts to minimize currency exposure to foreign and emerging markets through hedging.

Because of the nature of the Fund’s investments, the Fund may, from time to time, acquire securities and instruments related to its holdings that are issued in connection with amendments, waivers, conversions, exchanges, warrants, and rights offerings, as well as bankruptcy reorganizations and other financial or other corporate reorganizations. These securities and instruments include the types of securities that the Fund invests in directly as part of its principal strategy such as common stock, preferred stock, warrants and rights, corporate bonds, and notes, as well as other types of securities and instruments such as pay-in-kind (PIK) notes, zero-coupon notes, and private placements.

In addition to direct investments in securities, derivatives, which are instruments that have a value based on another instrument, exchange rate or index, may be used as substitutes for securities in which the Fund can invest. The Fund may use futures contracts, options, swaps, forwards and other foreign currency transactions in the management of portfolio investments. The Fund may also use such derivatives to hedge various investments, for risk management and/or to increase income or gain to the Fund. In particular, the Fund may invest in swaps structured as credit default swaps related to individual Loans or other securities or indexes of Loans or securities to gain exposure to Loans and other securities, to mitigate risk exposure and to manage cash flow needs. In addition, the Fund may use currency derivatives to hedge non-dollar investments back to the U.S. dollar.

The adviser buys and sells securities and investments for the Fund through a value-oriented, bottom-up research process that utilizes fundamental credit analysis to identify favorable and unfavorable risk/reward opportunities across sectors, industries and structures while minimizing credit risk. Such fundamental credit analysis includes focusing on the issuer’s underlying business prospects, capital requirements, capital structure, collateral, covenants, enterprise value, liquidity and management. The adviser strives to mitigate credit risk with meticulous research of sectors and issuers and will search for opportunities in inefficient sectors of the market where credit ratings have not caught up with fundamentals. The adviser’s fundamental analysis will be complemented by its macroeconomic insights as they relate to default rates and capital market liquidity. In addition to traditional fundamental credit and valuation analysis, the adviser focuses on identifying the cause (or potential causes) of a company’s distress and identifying catalysts that drive value creation and downside risk. To assess downside risk and upside potential of a particular investment, the adviser focuses on analyzing the potential volatility of a company’s enterprise value relative to the leveraged market value of the prospective or current investment.

The Fund’s Main Investment Risks

The Fund is subject to management risk and may not achieve its objective if the adviser’s expectations regarding particular securities or markets are not met.

An investment in this Fund or any other fund may not provide a complete investment program. The suitability of an investment in the Fund should be considered based on the investment objective, strategies and risks described in this Prospectus, considered in light of all of the other investments in your portfolio, as well as your risk tolerance, financial goals and time horizons. You may want to consult with a financial advisor to determine if this Fund is suitable for you.

General Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions.

Interest Rate and Credit Risk. The Fund’s investments in bonds and other debt securities will change in value based on changes in interest rates. If rates increase, the value of these investments generally declines. The Fund invests in variable and floating rate Loans and other variable and floating rate securities. Although these instruments are generally less sensitive to interest rate changes than other fixed rate instruments, the value of floating rate Loans and other securities may decline if their interest rates do not rise as quickly, or as much, as general interest rates. The Fund’s investments are subject to the risk that the issuer or the counterparty will fail to make payments when due or default completely. If an issuer’s financial condition worsens, the credit quality of the issuer may deteriorate, leading to greater price volatility and potentially making it difficult for the Fund to sell such investments.

High Yield Securities and Loan Risk. The Fund invests in securities including junk bonds, Loans and instruments that are issued by companies that are highly leveraged, less creditworthy or financially distressed. These investments are considered to be speculative and are subject to greater risk of loss, greater sensitivity to interest rate and economic changes, valuation difficulties and potential illiquidity. Such investments are subject to additional risks including subordination to other creditors, no collateral or limited rights in collateral, lack of a regular trading market, extended settlement periods, liquidity risks, prepayment risks, and lack of publicly available information. High yield securities and Loans that are deemed to be liquid at the time of purchase may become illiquid. No active trading market may exist for some securities and certain investments may be subject to restrictions on resale. The inability to dispose of these securities in a timely fashion could result in losses to the Fund. Because some securities may have a more limited secondary market, liquidity risk is more pronounced for the Fund than for funds that invest primarily in other types of fixed income instruments or equity securities. When Loans and other securities are prepaid, the Fund may have to reinvest in securities with a lower yield or fail to recover additional amounts (i.e., premiums) paid for these securities, resulting in an unexpected capital loss and/or a decrease in the amount of dividends and yield.

Foreign Securities and Emerging Markets Risk. U.S. dollar-denominated securities of foreign issuers or U.S. affiliates of foreign issuers may be subject to additional risks not faced by domestic issuers. These risks include political and economic risks, civil conflicts and war, greater volatility, expropriation and nationalization risks, and regulatory issues facing issuers in such countries. The Fund may also invest in non-U.S. dollar denominated securities. Investments in non-U.S. dollar denominated securities are subject to risks in addition to those summarized above including currency fluctuations, higher transaction costs, delayed settlement, possible foreign controls on investment, liquidity risks, and less stringent investor protection and disclosure standards of foreign markets. In certain markets where securities and other instruments are not traded “delivery versus payment,” the Fund may not receive timely payment for securities or other instruments it has delivered and may be subject to increased risk that the counterparty will fail to make payments when due or default completely. These risks are magnified in countries in “emerging markets.”

Derivatives Risk. Derivatives, including futures contracts, options, swaps, forwards and other foreign currency transactions, may be riskier than other types of investments because they may be more sensitive to changes in economic and market conditions and could result in losses that significantly exceed the Fund’s original investment. Many derivatives create leverage thereby causing the Fund to be more volatile than it would have been if it had not used derivatives. Derivatives also expose the Fund to counterparty risk (the risk that the derivative counterparty will not fulfill its contractual obligations), including the credit risk of the derivative counterparty. Certain derivatives are synthetic instruments that attempt to replicate the performance of certain reference assets. With regard to such derivatives, the Fund does not have a claim on the reference assets and is subject to enhanced counterparty risk.

Equity Market Risk. The price of equity securities may rise or fall because of changes in the broad market or changes in a company’s financial condition, sometimes rapidly or unpredictably. These price movements may result from factors affecting individual companies, sectors or industries selected for the Fund’s portfolio or the securities market as a whole, such as changes in economic or political conditions. When the value of the Fund’s securities goes down, your investment in the Fund decreases in value.

Convertible Securities Risk. The value of convertible securities tends to decline as interest rates rise and, because of the conversion feature, tends to vary with fluctuations in the market value of the underlying securities.

Redemption Risk. The Fund could experience a loss when selling securities to meet redemption requests. The risk of loss increases if the redemption requests are unusually large or frequent, occur in times of overall market turmoil or declining prices for the securities sold, or when the securities the Fund wishes to or is required to sell are illiquid.

Investments in the Fund are not deposits or obligations of, or guaranteed or endorsed by, any bank and are not insured or guaranteed by the FDIC, the Federal Reserve Board or any other government agency.

You could lose money investing in the Fund.

The Fund’s Past Performance

The Fund commenced operations on June 1, 2011 and has limited performance history. Although past performance of a Fund is no guarantee of how it will perform in the future, historical performance may give you some indication of the risks of investing in the Fund.

[1] (under $1 million)

[1] The Fund's adviser, administrator and distributor (the Service Providers) have contractually agreed to waive fees and/or reimburse expenses to the extent Total Annual Fund Operating Expenses (excluding Acquired Fund Fees and Expenses, dividend expenses related to short sales, interest, taxes, expenses related to litigation and potential litigation, extraordinary expenses and expenses related to the Board of Trustees' deferred compensation plan) exceed 1.00%, 1.50% and 0.75% of the average daily net assets of Class A, Class C and Select Class Shares, respectively. This contract cannot be terminated prior to 1/1/14, at which time the Service Providers will determine whether or not to renew or revise it.