JPMorgan Trust I

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Registrant Name

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JPMorgan Trust I

Prospectus Date

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Aug. 16, 2013

R6 Shares | JPMorgan Tax Aware Real Return Fund

Objective, Primary [Text Block]

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Risk/Return [Heading]

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JPMorgan Tax Aware Real Return Fund

Class/Ticker: R6/TXRRX

Objective [Heading]

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What is the goal of the Fund?

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The Fund seeks to maximize after-tax inflation protected return.

Expense [Heading]

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Fees and Expenses of the Fund

Expense Narrative [Text Block]

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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]

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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

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2/28/15

Portfolio Turnover [Heading]

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Portfolio Turnover

Portfolio Turnover [Text Block]

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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 8% of the average value of its portfolio.

Portfolio Turnover, Rate

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8.00%

Expense Example [Heading]

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Example

Expense Example Narrative [Text Block]

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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 2/28/15 and total annual fund operating expenses thereafter. Your actual costs may be higher or lower.

Expense Example by, Year, Caption [Text]

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

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

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

Strategy [Heading]

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What are the Fund’s main investment strategies?

Strategy Narrative [Text Block]

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The Fund is designed to protect after-tax return by, under normal circumstances, primarily investing in a portfolio of municipal obligations whose interest payments are excluded from federal income taxes. The Fund is also designed to maximize inflation-protected return, which means maximizing the “real return.” Real Return is the total return of a security less the actual rate of inflation. Because of the limited supply of inflation-protected municipal securities, the Fund seeks to synthetically create inflation protection by investing in a combination of conventional (i.e., non-inflation protected) municipal securities and inflation-linked derivatives such as Non-Seasonally Adjusted Consumer Price Index for all Urban Consumers (CPI-U) swaps. The adviser may use other strategies to achieve the Fund’s objective including investments in other types of securities which provide after-tax return and direct investments in inflation-linked securities such as Treasury Inflation Protected Securities (TIPS) and municipal inflation-linked securities, if available.

Derivatives, which are instruments that have a value based on another instrument, exchange rate or index, may also be used as substitutes for securities in which the Fund may invest. As part of its principal investment strategy, the Fund will invest substantially in swaps in which the Fund receives inflation-linked payments that provide inflation protection.

The Fund also may invest in taxable debt securities, including but not limited to, asset-backed and mortgage-related securities, U.S. government and agency securities, domestic corporate bonds and money market instruments and repurchase agreements. The Fund may engage in short sales including short sales of forward commitments. The Fund may also invest in repurchase agreements.

The average weighted maturity of the Fund’s portfolio will be between three and ten years. Average weighted maturity is the average of all the current maturities (that is, the term of the securities) of the individual bonds in a Fund calculated so as to count most heavily those securities with the highest dollar value. Average weighted maturity is important to investors as an indication of a Fund’s sensitivity to changes in interest rates. Usually, the longer the average weighted maturity, the more fluctuation in share price you can expect.

The Fund seeks to minimize shareholders’ tax liability in connection with the Fund’s distribution of realized capital gain by minimizing the net gains available for distribution. In addition, the Fund seeks to minimize distributions that are taxed as ordinary income.

Investment Process: The adviser buys and sells securities and investments for the Fund based on its view of individual securities and sectors. Taking a long-term approach, the adviser looks for individual fixed income investments that it believes will perform well over market cycles. The adviser is value oriented and makes decisions to purchase and sell individual securities and instruments after performing a risk/reward analysis that includes an evaluation of interest rate risk, credit risk, duration, liquidity and the complex legal and technical structure of the transaction.

The frequency with which the Fund buys and sells securities will vary from year to year, depending on market conditions and the implementation of the tax aware strategy.

Risk [Heading]

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The Fund’s Main Investment Risks

Risk Narrative [Text Block]

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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.

Municipal Obligations Risk. The risk of a municipal obligation generally depends on the financial and credit status of the issuer. Changes in a municipality’s financial health may make it difficult for the municipality to make interest and principal payments when due. This could decrease the Fund’s income or hurt its ability to preserve capital and liquidity. Under some circumstances, municipal obligations might not pay interest unless the state legislature or municipality authorizes money for that purpose.

Municipal obligations may be more susceptible to downgrades or defaults during recessions or similar periods of economic stress. In addition, since some municipal obligations may be secured or guaranteed by banks and other institutions, the risk to the Fund could increase if the banking or financial sector suffers an economic downturn and/or if the credit ratings of the institutions issuing the guarantee are downgraded or at risk of being downgraded by a national rating organization. Such a downward revision or risk of being downgraded may have an adverse effect on the market prices of the bonds and thus the value of the Fund’s investments.

In addition to being downgraded, an insolvent municipality may file for bankruptcy. The reorganization of a municipality’s debts may significantly affect the rights of creditors and the value of the securities issued by the municipality and the value of the Fund’s investments. Interest on municipal obligations, while generally exempt from federal income tax, may not be exempt from federal alternative minimum tax.

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.

Derivatives Risk. Derivatives, including swaps, may be riskier than other types of investments and may increase the volatility of the Fund. Derivatives may be sensitive to changes in economic and market conditions and may create leverage, which could result in losses that significantly exceed the Fund’s original investment. Derivatives expose the Fund to counterparty risk which is the risk that the derivative counterparty will not fulfill its contractual obligations (and includes credit risk associated with the 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.

Strategy Risk. The Fund’s investments may not work to achieve the Fund’s objective. There is no guarantee that the use of derivatives and debt securities will mimic a portfolio of inflation-protected municipal securities.

Inflation-Linked Securities Risk. Inflation-linked securities, including CPI-U swaps, are subject to the effects of changes in market interest rates caused by factors other than inflation (real interest rates). In general the price of an inflation-linked security tends to decline when real interest rates increase. Unlike conventional bonds, the principal or interest of inflation-linked 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 real 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.

Debt Securities and Other Callable Securities Risk. As part of its investment strategy, the Fund invests in debt securities. The issuers of these securities and other callable securities may be able to repay principal in advance, especially when interest rates fall. Changes in prepayment rates can affect the return on investment and yield of these securities. When debt obligations are prepaid and when securities are called, the Fund may have to reinvest in securities with a lower yield. The Fund also may fail to recover additional amounts (i.e., premiums) paid for securities with higher interest rates, resulting in an unexpected capital loss.

Government Securities Risk. The Fund invests in securities issued or guaranteed by the U.S. government or its agencies and instrumentalities (such as the Government National Mortgage Association (Ginnie Mae), the Federal National Mortgage Association (Fannie Mae), or the Federal Home Loan Mortgage Corporation (Freddie Mac)). U.S. government securities are subject to market risk, interest rate risk and credit risk. Securities, such as those issued or guaranteed by Ginnie Mae or the U.S. Treasury, that are backed by the full faith and credit of the United States are guaranteed only as to the timely payment of interest and principal when held to maturity and the market prices for such securities will fluctuate. Notwithstanding these securities are backed by the full faith and credit of the United States, circumstances could arise that would prevent the payment of interest or principal. This would result in losses to the Fund. Securities issued or guaranteed by U.S. government related organizations, such as Fannie Mae and Freddie Mac, are not backed by the full faith and credit of the U.S. government and no assurance can be given that the U.S. government would provide financial support. Therefore, U.S. government-related organizations may not have the funds to meet their payment obligations in the future.

Interest Rate Risk. The Fund’s investments in bonds and other debt securities will change in value based on changes in interest rates. If rates rise, the value of these investments generally drop.

Credit Risk. 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 making it difficult for the Fund to sell such investments.

High Yield Securities Risk. The Fund may invest in securities and instruments that are 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.

Tax Aware Investing Risk. The Fund’s tax aware strategies may reduce your taxable income, but will not eliminate it. These strategies may require trade-offs that reduce pretax income. Managing the Fund to maximize after-tax returns may also potentially have a negative effect on the Fund’s performance. Because tax consequences are considered in managing the Fund, the Fund’s pre-tax performance may be lower than that of a similar fund that is not tax-managed.

Mortgage-Related and Other Asset-Backed Securities Risk. Mortgage-related and asset-backed securities, including certain municipal housing authority obligations, are subject to certain other risks. The value of these securities will be influenced by the factors affecting the housing market and the assets underlying such securities. As a result, during periods of declining asset values, difficult or frozen credit markets, significant changes in interest rates, or deteriorating economic conditions, mortgage-related and asset-backed securities may decline in value, face valuation difficulties, become more volatile and/or become illiquid. These securities are also subject to prepayment and call risk. In periods of declining interest rates, the Fund may be subject to contraction risk which is the risk that borrowers will increase the rate at which they prepay the maturity value of mortgages and other obligations. When mortgages and other obligations are prepaid and when securities are called, the 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 dividend and yield. In periods of rising interest rates, the Fund may be subject to extension risk which is the risk that the expected maturity of an obligation will lengthen in duration due to a decrease in prepayments. As a result, in certain interest rate environments, the Fund may exhibit additional volatility. Collateralized mortgage obligations (CMOs), interest-only (IOs) and principal-only (POs) stripped mortgage-backed securities are more volatile and may be subject to a higher risk of non-payment than other mortgage related securities.

Short Selling Risk. The Fund may enter into short sales of certain securities and must borrow the securities to make delivery to the buyer. The Fund may not always be able to borrow a security it wants to sell short. The Fund also may be unable to close out an established short position at an acceptable price, and it may have to sell long positions at disadvantageous times to cover its short positions. In addition, the Fund may enter into short sales of instruments such as mortgage TBAs which do not involve borrowing a security. Furthermore, taking short positions in securities results in a form of leverage. Leverage involves special risks described under “Derivatives Risk.” The Fund’s loss on a short sale is potentially unlimited because there is no upward limit on the price a borrowed security could attain.

Taxability Risk. The Fund’s investments in municipal securities rely on the opinion of the issuer’s bond counsel that the interest paid on those securities will not be subject to federal income tax. Tax opinions are generally provided at the time the municipal security is initially issued. However, after the Fund buys a security, the Internal Revenue Service may determine that a bond issued as tax-exempt should in fact be taxable and the Fund’s dividends with respect to that bond might be subject to federal income tax.

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]

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You could lose money investing in the Fund.

Risk Not Insured Depository Institution [Text]

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Bar Chart and Performance Table [Heading]

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The Fund’s Past Performance

Performance Narrative [Text Block]

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This section provides some indication of the risks of investing in the Fund. Because the Class R6 Shares have not yet commenced operations as of the date of this prospectus, the bar chart shows how the performance of the Fund’s Institutional Class Shares has varied from year to year for the past seven calendar years. The table shows the average annual total returns for the past one year, five years and life of the Fund. It compares that performance to the Barclays Competitive Intermediate Municipal (1–17 Year) Maturities Index, a composite benchmark which comprises unmanaged indices that correspond to the Fund’s objective of after-tax inflation protected return (Tax Aware Real Return Composite Benchmark), and the Lipper Intermediate Municipal Debt Funds Index, an index based on the total returns of certain mutual funds within the Fund’s designated category as determined by Lipper. Unlike the other indexes, the Lipper index includes the expenses of the mutual funds included in the index. The actual returns of Class R6 Shares would have been different than those shown because Class R6 Shares have different expenses than Institutional Class Shares. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available by visiting www.jpmorganfunds.com or by calling 1-800-480-4111.

Performance Information Illustrates Variability of Returns [Text]

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the bar chart shows how the performance of the Fund’s Institutional Class Shares has varied from year to year for the past seven calendar years. The table shows the average annual total returns for the past one year, five years and life of the Fund.

Performance One Year or Less [Text]

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Because the Class R6 Shares have not yet commenced operations as of the date of this prospectus,

Performance Additional Market Index [Text]

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It compares that performance to the Barclays Competitive Intermediate Municipal (1–17 Year) Maturities Index, a composite benchmark which comprises unmanaged indices that correspond to the Fund’s objective of after-tax inflation protected return (Tax Aware Real Return Composite Benchmark), and the Lipper Intermediate Municipal Debt Funds Index, an index based on the total returns of certain mutual funds within the Fund’s designated category as determined by Lipper. Unlike the other indexes, the Lipper index includes the expenses of the mutual funds included in the index.

Performance Availability Phone [Text]

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1-800-480-4111

Performance Availability Website Address [Text]

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www.jpmorganfunds.com

Performance Past Does Not Indicate Future [Text]

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Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Bar Chart [Heading]

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YEAR-BY-YEAR RETURNS

Bar Chart Closing [Text Block]

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Best Quarter	1st quarter, 2009	7.79%
Worst Quarter	4th quarter, 2008	–5.37%

Bar Chart, Returns for Class Not Offered in Prospectus [Text]

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the bar chart shows how the performance of the Fund’s Institutional Class Shares has varied from year to year for the past seven calendar years.

Performance Table Heading

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AVERAGE ANNUAL TOTAL RETURNS
(For the period ended December 31, 2012)

Performance Table Uses Highest Federal Rate

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After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

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Actual after-tax returns depend on the investor’s tax situation and may differ from those shown. The after-tax returns shown are not relevant to investors who hold their shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.

Performance Table Narrative

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After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on the investor’s tax situation and may differ from those shown. The after-tax returns shown are not relevant to investors who hold their shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.

R6 Shares | JPMorgan Tax Aware Real Return Fund | Class R6

Distribution (Rule 12b-1) Fees

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Management Fees

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0.35%

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none

Shareholder Service Fees

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none

Remainder of Other Expenses

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0.12%

Other Expenses

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0.12%

Total Annual Fund Operating Expenses

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0.47%

Fee Waivers and/or Expense Reimbursements

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(0.07%)

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Total Annual Fund Operating Expenses After Fee Waivers and Expense Reimbursements

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0.40%

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1 Year

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$ 41

3 Years

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144

5 Years

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256

10 Years

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585

1 Year

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3 Years

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144

5 Years

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256

10 Years

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$ 585

R6 Shares | JPMorgan Tax Aware Real Return Fund | INSTITUTIONAL CLASS SHARES

Highest Quarterly Return, Label

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2006

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2.35%

2007

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4.50%

2008

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(7.27%)

2009

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14.52%

2010

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1.79%

2011

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6.75%

2012

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4.76%

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Best Quarter

Highest Quarterly Return, Date

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Mar. 31, 2009

Highest Quarterly Return

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7.79%

Lowest Quarterly Return, Label

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Worst Quarter

Lowest Quarterly Return, Date

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Dec. 31, 2008

Lowest Quarterly Return

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(5.37%)

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4.76%

rr_AverageAnnualReturnYear05

3.87%

rr_AverageAnnualReturnSinceInception

3.70%

Inception Date

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Aug. 31, 2005

R6 Shares | JPMorgan Tax Aware Real Return Fund | Return After Taxes on Distributions | INSTITUTIONAL CLASS SHARES

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rr_AverageAnnualReturnYear01

4.76%

rr_AverageAnnualReturnYear05

3.87%

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3.70%

Inception Date

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Aug. 31, 2005

R6 Shares | JPMorgan Tax Aware Real Return Fund | Return After Taxes on Distributions and Sale of Fund Shares | INSTITUTIONAL CLASS SHARES

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rr_AverageAnnualReturnYear01

3.98%

rr_AverageAnnualReturnYear05

3.72%

rr_AverageAnnualReturnSinceInception

3.60%

Inception Date

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Aug. 31, 2005

R6 Shares | JPMorgan Tax Aware Real Return Fund | BARCLAYS COMPETITIVE INTERMEDIATE MUNICIPAL (1–17 YEAR) MATURITIES INDEX (Reflects No Deduction for Fees, Expenses or Taxes)

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rr_AverageAnnualReturnYear01

4.72%

rr_AverageAnnualReturnYear05

5.53%

rr_AverageAnnualReturnSinceInception

4.94%

R6 Shares | JPMorgan Tax Aware Real Return Fund | TAX AWARE REAL RETURN COMPOSITE BENCHMARK (Reflects No Deduction for Fees, Expenses or Taxes)

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rr_AverageAnnualReturnYear01

6.61%

rr_AverageAnnualReturnYear05

4.45%

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R6 Shares | JPMorgan Tax Aware Real Return Fund | LIPPER INTERMEDIATE MUNICIPAL DEBT FUNDS INDEX (Reflects No Deduction for Taxes)

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rr_AverageAnnualReturnYear01

5.38%

rr_AverageAnnualReturnYear05

5.04%