485BPOS

Filed with the Securities and Exchange Commission on November 14, 2012

Securities Act of 1933 File No. 002-72101

Investment Company Act of 1940 File No. 811-03174

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 x

Pre-Effective Amendment No.

Post-Effective Amendment No. 73

and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940 x

Amendment No. 72

(Check appropriate box or boxes.)

TOUCHSTONE TAX-FREE TRUST

(Exact name of Registrant as Specified in Charter)

303 Broadway, Suite 1100, Cincinnati, Ohio 45202

(Address of Principal Executive Offices) Zip Code

Registrant’s Telephone Number, including Area Code (513) 878-4066

Jill T. McGruder, 303 Broadway, Cincinnati, OH 45202

(Name and Address of Agent for Service)

With Copies to:

John M. Ford, Esq.

Pepper Hamilton LLP

3000 Two Logan Square

Philadelphia, PA 19103

It is proposed that this filing will become effective

(check appropriate box)

x immediately upon filing pursuant to paragraph (b)

o on (date) pursuant to paragraph (b)

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

o on (date) pursuant to paragraph (a)(1)

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

o on (date) pursuant to paragraph (a)(2) of rule 485. If appropriate, check the following box:

o This post-effective amendment designates a new effective date for a previously filed post-effective amendment.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, and the Investment Company Act of 1940, as amended, the Registrant certifies that it meets all of the requirement for effectiveness of this Post-Effective Amendment No. 73 to its Registration Statement on Form N-1A under Rule 485(b) under the Securities Act of 1933, as amended, and has duly caused this Post-Effective Amendment No. 73 to its Registration Statement on Form N-1A to be signed on its behalf by the undersigned, duly authorized, in the City of Cincinnati, and State of Ohio on the 14^th day of November, 2012.

TOUCHSTONE TAX-FREE TRUST

By: /s/ Jill T. McGruder

Jill T. McGruder

President

Pursuant to the requirements of the Securities Act of 1933, as amended, this Post-Effective Amendment No. 73 to the Registrant’s Registration Statement on Form N-1A has been signed below by the following persons in the capacities and on the dates indicated.

*	Trustee	November 14, 2012
Phillip R. Cox
*	Trustee	November 14, 2012
H. Jerome Lerner
*	Trustee	November 14, 2012
John P. Zanotti
*	Trustee	November 14, 2012
Donald C. Siekmann
*	Trustee	November 14, 2012
Susan J. Hickenlooper
/s/Jill T. McGruder
	Trustee and President	November 14, 2012
Jill T. McGruder
/s/Terrie Wiedenheft
	Controller, Treasurer	November 14, 2012
Terrie A. Wiedenheft	and Principal Financial
	Officer

*By: _/s/Terri A. Wiedenheft___________________

        Terrie A. Wiedenheft

       (Attorney-in-Fact Pursuant to Power of Attorney)

EXHIBIT INDEX

EXHIBIT NO.	DESCRIPTION OF EXHIBIT
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

XML

Label	Element	Value
Risk Return [Abstract]	rr_RiskReturnAbstract
ProspectusDate	rr_ProspectusDate	Oct. 30, 2012
Ohio Tax-Free Bond Fund (Prospectus Summary) | Ohio Tax-Free Bond Fund
Risk Return [Abstract]	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	TOUCHSTONE OHIO TAX-FREE BOND FUND SUMMARY
Objective [Heading]	rr_ObjectiveHeading	The Fund's Investment Goal
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Touchstone Ohio Tax-Free Bond Fund seeks the highest level of interest income exempt from federal income tax and Ohio personal income tax, consistent with the protection of capital.
Expense [Heading]	rr_ExpenseHeading	The Fund's Fees and Expenses
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 or more in the Touchstone Funds. More information about these and other discounts is available from your financial professional and in the section entitled "Choosing a Class of Shares" in the Fund's Prospectus on page 23 and in the section entitled "Other Purchase and Redemption Information" in the Fund's Statement of Additional Information on page 32.
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)
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 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 most recent fiscal year, the Fund's portfolio turnover rate was 33% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	33.00%
Expense Breakpoint Discounts [Text]	rr_ExpenseBreakpointDiscounts	You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 or more in the Touchstone Funds.
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	50,000
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 and then, except as indicated, redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same (reflecting any contractual fee waivers). Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, No Redemption, By Year, Caption [Text]	rr_ExpenseExampleNoRedemptionByYearCaption	Assuming No Redemption Class C
Strategy [Heading]	rr_StrategyHeading	The Fund's Principal Investment Strategies
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund invests at least 80% of its assets in high-quality, long-term Ohio municipal obligations, including general obligation bonds, revenue bonds and industrial development bonds. High-quality, long-term Ohio municipal obligations are, for purposes of this Fund, considered to be obligations rated within the three highest rating categories, with remaining maturities of 3 years or more. This is a non-fundamental investment policy and the Fund will provide shareholders with at least 60 days' prior notice of any change in this policy.    The Fund invests primarily in Ohio municipal obligations rated within the three highest rating categories. The Fund may also purchase Ohio municipal obligations and other securities rated within the four highest rating categories. If a security's rating is reduced below the four highest rating categories, the security will be sold. A security may also be sold due to changes in market conditions or Fort Washington Investment Advisors, Inc.'s ("Fort Washington" or the "Sub-Advisor") outlook. The Fund may purchase unrated obligations that the Sub-Advisor determines to be of comparable quality. The Fund has a fundamental investment policy that under normal circumstances at least 80% of the income it distributes will be exempt from federal income tax, including the alternative minimum tax, and Ohio personal income tax. This fundamental policy may not be changed without the approval of the Fund's shareholders. The Fund will seek to maintain an average weighted maturity of more than 10 years, but may reduce its average weighted maturity to 10 years or below if warranted by market conditions. The Fund concentrates its investments in securities of issuers located in the State of Ohio and is non-diversified under the Investment Company Act of 1940, as amended (the "1940 Act"). The Fund may invest more than 25% of its assets in municipal obligations within a particular segment of the bond market (such as housing agency bonds or airport bonds). The Fund may also invest more than 25% of its assets in private activity bonds and industrial development bonds which may be backed only by nongovernmental entities. Under normal circumstances, the Fund will limit its investment in securities whose income is subject to the alternative minimum tax to less than 20% of its assets. The Fund will not invest more than 25% of its assets in securities backed by nongovernmental entities that are in the same industry.
Strategy Portfolio Concentration [Text]	rr_StrategyPortfolioConcentration	The Fund invests at least 80% of its assets in high-quality, long-term Ohio municipal obligations, including general obligation bonds, revenue bonds and industrial development bonds.
Risk [Heading]	rr_RiskHeading	The Principal Risks
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	The Fund's share price will fluctuate. You could lose money on your investment in the Fund and the Fund could return less than other investments. The Fund is subject to the principal risks summarized below. Credit Risk: The securities in the Fund's portfolio are subject to the possibility that a deterioration, whether sudden or gradual, in the financial condition of an issuer, or a deterioration in general economic conditions, could cause an issuer to fail to make timely payments of principal or interest, when due. This may cause the issuer's securities to decline in value. Interest Rate Risk: As interest rates rise, the value of fixed income securities the Fund owns will likely decrease. Longer-term securities are generally more volatile, so the longer the average maturity or duration of these securities, the greater their price risk. Duration is a measure of the expected life, taking into account any prepayment or call features of the security, of a fixed income security that is used to determine the price sensitivity of the security for a given change in interest rates. Specifically, duration is the change in the value of a fixed income security that will result from a 1% change in interest rates, and generally is stated in years. Maturity, on the other hand, is the date on which a fixed income security becomes due for payment of principal. Investment-Grade Securities Risk: Investment grade debt securities may be downgraded by a Nationally Recognized Statistical Rating Organization ("NRSRO") to below investment-grade status, which would increase the risk of holding these securities, or a rating may become stale in that it fails to reflect changes to an issuer's financial condition. Investment-grade debt securities rated in the lowest rating category by an NRSRO involve a higher degree of risk than fixed-income securities in the higher-rating categories. While such securities are considered investment-grade quality and are deemed to have adequate capacity for payment of principal and interest, such securities lack outstanding investment characteristics and have speculative characteristics as well.  For example, changes in economic conditions or other circumstances are more likely to lead to a weakened capacity to make principal and interest payments than is the case with higher-grade securities. Management Risk: The value of your investment may decrease if the sub-advisor's judgment about the attractiveness, value, credit quality or income potential of a particular security is incorrect.    Municipal Securities Risk: The value of municipal securities may be affected by uncertainties in the municipal market related to legislation or litigation involving the taxation of municipal securities or the rights of municipal securities holders in the event of bankruptcy. In addition, the ongoing issues facing the national economy may negatively impact the economic performance of issuers of municipal securities, and may increase the likelihood that issuers of securities in which the Fund may invest may be unable to meet their obligations. Also, some municipal obligations may be backed by a letter of credit issued by a bank or other financial institution. Adverse developments affecting banks or other financial institutions could have a negative effect on the value of the Fund's portfolio securities.    Non-Diversification Risk: The Fund is non-diversified, which means that it may invest a greater percentage of its assets than diversified mutual funds in the securities of a limited number of issuers. The use of a non-diversified investment strategy may increase the volatility of the Fund's investment performance, as the Fund may be more susceptible to risks associated with a single economic, political or regulatory event than a diversified fund.    Prepayment Risk: Prepayment risk is the risk that a debt security may be paid off and proceeds invested earlier than anticipated. Prepayment risk is more prevalent during periods of falling interest rates.    Rating Agency Risk: Ratings represent the opinion of a Nationally Recognized Statistical Rating Organization ("NRSRO") regarding the quality of the security and are not a guarantee of quality. NRSROs may fail to make timely credit ratings in response to subsequent events. In addition, NRSROs are subject to an inherent conflict of interest because they are often compensated by the same issuers whose securities they grade. Sector Focus Risk: A fund that focuses its investments in the securities of a particular bond market sector (e.g., housing agency bonds or airport bonds) is subject to the risk that adverse circumstances will have a greater impact on the fund than a fund that does not focus its investments in a particular sector. It is possible that economic, business or political developments or other changes affecting one security in the area of focus will affect other securities in that area of focus in the same manner, thereby increasing the risk of such investments.    State Risk: Political and economic conditions in the state of Ohio may impact the value of Ohio municipal obligations. The Fund may lose value due to decreased economic growth, increased unemployment and decreased tax revenue in the state of Ohio.    An investment in the Fund is not a bank deposit and is not insured or guaranteed by the FDIC or any other government agency. As with any mutual fund, there is no guarantee that the Fund will achieve its goal.
Risk Lose Money [Text]	rr_RiskLoseMoney	You could lose money on your investment in the Fund and the Fund could return less than other investments.
Risk Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	The Fund is non-diversified, which means that it may invest a greater percentage of its assets than diversified mutual funds in the securities of a limited number of issuers. The use of a non-diversified investment strategy may increase the volatility of the Fund's investment performance, as the Fund may be more susceptible to risks associated with a single economic, political or regulatory event than a diversified fund.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	An investment in the Fund is not a bank deposit and is not insured or guaranteed by the FDIC or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	The Fund's Performance
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The bar chart and performance table below illustrate some indication of the risks of investing in the Fund. The bar chart shows changes in performance (before taxes) of the Fund's Class A shares for each of the last 10 calendar years. The bar chart does not reflect any sales charges, which would reduce your return. The Fund's past performance (before and after taxes) does not necessarily indicate how it will perform in the future. Updated performance is available at no cost by visiting www.TouchstoneInvestments.com or by calling 1.800.543.0407.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart and performance table below illustrate some indication of the risks of investing in the Fund. The bar chart shows changes in performance (before taxes) of the Fund's Class A shares for each of the last 10 calendar years.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	1.800.543.0407
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.TouchstoneInvestments.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	The Fund's past performance (before and after taxes) does not necessarily indicate how it will perform in the future.
Bar Chart [Heading]	rr_BarChartHeading	Ohio Tax-Free Bond Fund -- Class A Total Returns as of December 31
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Best Quarter: 3rd Quarter 2009  5.43%    Worst Quarter: 4th Quarter 2010 (3.88%) The year-to-date return of the Fund's Class A shares as of September 30, 2012 is 6.32%.
Index No Deduction for Fees, Expenses, Taxes [Text]	rr_IndexNoDeductionForFeesExpensesTaxes	reflects no deductions for fees, expenses or taxes
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	After-tax returns are calculated using the highest individual federal income tax rate and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Your after-tax returns may differ from those shown and depend on your tax situation. The after-tax returns do not apply to shares held in an IRA, 401(k) or other tax-deferred account.
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	The after-tax returns shown in the table are for Class A shares only. The after-tax returns for other classes of shares offered by the Fund will differ from the Class A after-tax returns.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	The performance table shows how the Fund's average annual total returns (before and after taxes) for 1, 5 and 10 years compare with those of the Barclays Capital Municipal Bond Index. After-tax returns are calculated using the highest individual federal income tax rate and do not reflect the impact of state and local taxes. Your after-tax returns may differ from those shown and depend on your tax situation. The after-tax returns do not apply to shares held in an IRA, 401(k) or other tax-deferred account. The after-tax returns shown in the table are for Class A shares only. The after-tax returns for other classes of shares offered by the Fund will differ from the Class A after-tax returns.
Caption	rr_AverageAnnualReturnCaption	Average Annual Total Returns For the period ended December 31, 2011
Ohio Tax-Free Bond Fund (Prospectus Summary) | Ohio Tax-Free Bond Fund | Barclays Capital Municipal Bond Index
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Barclays Capital Municipal Bond Index (reflects no deductions for fees, expenses or taxes)
1 Year	rr_AverageAnnualReturnYear01	10.70%
5 Years	rr_AverageAnnualReturnYear05	5.22%
10 Years	rr_AverageAnnualReturnYear10	5.38%
Ohio Tax-Free Bond Fund (Prospectus Summary) | Ohio Tax-Free Bond Fund | Class A
Risk Return [Abstract]	rr_RiskReturnAbstract
Maximum Sales (Load) Charge Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	4.75%
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or the amount redeemed, whichever is less)	rr_MaximumDeferredSalesChargeOverOfferingPrice	none
Wire Redemption Fee	rr_RedemptionFee	(15)
Management Fees	rr_ManagementFeesOverAssets	0.50%
Distribution (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Other Expenses	rr_OtherExpensesOverAssets	0.37%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.12%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.27%)	[1]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.85%
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	2013-10-29
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	558
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	789
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	1,038
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	1,750
Annual Return 2002	rr_AnnualReturn2002	9.07%
Annual Return 2003	rr_AnnualReturn2003	4.65%
Annual Return 2004	rr_AnnualReturn2004	3.85%
Annual Return 2005	rr_AnnualReturn2005	2.50%
Annual Return 2006	rr_AnnualReturn2006	4.07%
Annual Return 2007	rr_AnnualReturn2007	3.01%
Annual Return 2008	rr_AnnualReturn2008	(1.28%)
Annual Return 2009	rr_AnnualReturn2009	10.61%
Annual Return 2010	rr_AnnualReturn2010	1.06%
Annual Return 2011	rr_AnnualReturn2011	8.61%
Year to Date Return, Label	rr_YearToDateReturnLabel	The year-to-date return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Sep. 30, 2012
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	6.32%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Best Quarter:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Sep. 30, 2009
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	5.43%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Worst Quarter:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Dec. 31, 2010
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(3.88%)
Label	rr_AverageAnnualReturnLabel	Ohio Tax-Free Bond Fund - Class A Return Before Taxes
1 Year	rr_AverageAnnualReturnYear01	3.41%
5 Years	rr_AverageAnnualReturnYear05	3.30%
10 Years	rr_AverageAnnualReturnYear10	4.04%
Ohio Tax-Free Bond Fund (Prospectus Summary) | Ohio Tax-Free Bond Fund | Class A | After Taxes on Distributions
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Ohio Tax-Free Bond Fund - Class A Return After Taxes on Distributions
1 Year	rr_AverageAnnualReturnYear01	3.39%
5 Years	rr_AverageAnnualReturnYear05	3.24%
10 Years	rr_AverageAnnualReturnYear10	3.93%
Ohio Tax-Free Bond Fund (Prospectus Summary) | Ohio Tax-Free Bond Fund | Class A | After Taxes on Distributions and Sales
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Ohio Tax-Free Bond Fund - Class A Return After Taxes on Distributions and Sale of Fund Shares
1 Year	rr_AverageAnnualReturnYear01	3.51%
5 Years	rr_AverageAnnualReturnYear05	3.34%
10 Years	rr_AverageAnnualReturnYear10	3.99%
Ohio Tax-Free Bond Fund (Prospectus Summary) | Ohio Tax-Free Bond Fund | Class C
Risk Return [Abstract]	rr_RiskReturnAbstract
Maximum Sales (Load) Charge Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or the amount redeemed, whichever is less)	rr_MaximumDeferredSalesChargeOverOfferingPrice	1.00%
Wire Redemption Fee	rr_RedemptionFee	(15)
Management Fees	rr_ManagementFeesOverAssets	0.50%
Distribution (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	1.00%
Other Expenses	rr_OtherExpensesOverAssets	0.57%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	2.07%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.47%)	[1]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.60%
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	2013-10-29
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	263
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	603
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	1,070
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	2,363
Expense Example, No Redemption, 1 Year	rr_ExpenseExampleNoRedemptionYear01	163
Expense Example, No Redemption, 3 Years	rr_ExpenseExampleNoRedemptionYear03	603
Expense Example, No Redemption, 5 Years	rr_ExpenseExampleNoRedemptionYear05	1,070
Expense Example, No Redemption, 10 Years	rr_ExpenseExampleNoRedemptionYear10	2,363
Label	rr_AverageAnnualReturnLabel	Ohio Tax-Free Bond Fund - Class C Return Before Taxes
1 Year	rr_AverageAnnualReturnYear01	6.80%
5 Years	rr_AverageAnnualReturnYear05	3.53%
10 Years	rr_AverageAnnualReturnYear10	3.77%

[1] Touchstone Advisors and the Trust have entered into an expense limitation agreement whereby Touchstone Advisors has contractually agreed to waive a portion of its fees and/or reimburse certain Fund expenses in order to limit annual fund operating expenses to 0.85% and 1.60% for Class A shares and Class C shares, respectively. This expense limitation will remain in effect until at least October 29, 2013 but can be terminated by a vote of the Board of Trustees of the Fund if they deem the termination to be beneficial to the shareholders. Touchstone Advisors is entitled to recoup, subject to approval by the Board of Trustees of the Fund, such amounts reduced or reimbursed for a period of up to three (3) years from the year in which Touchstone Advisors reduced its compensation and/or assumed expenses for the Fund. No recoupment will occur unless the Fund's expenses are below the expense limitation. See the discussion entitled "Contractual Fee Waiver Agreement" under the section entitled "The Funds' Management" in the Fund's Prospectus for more information.

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Ohio Tax-Free Bond Fund (Prospectus Summary) | Ohio Tax-Free Bond Fund

TOUCHSTONE OHIO TAX-FREE BOND FUND SUMMARY

The Fund's Investment Goal

The Touchstone Ohio Tax-Free Bond Fund seeks the highest level of interest
income exempt from federal income tax and Ohio personal income tax, consistent
with the protection of capital.

The Fund's Fees and Expenses

This table describes the fees and expenses that you may pay if you buy and hold
shares of the Fund. You may qualify for sales charge discounts if you and your
family invest, or agree to invest in the future, at least $50,000 or more in the
Touchstone Funds. More information about these and other discounts is available
from your financial professional and in the section entitled "Choosing a Class
of Shares" in the Fund's Prospectus on page 23 and in the section entitled
"Other Purchase and Redemption Information" in the Fund's Statement of
Additional Information on page 32.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees Ohio Tax-Free Bond Fund (USD $)	Class A	Class C
Maximum Sales (Load) Charge Imposed on Purchases (as a percentage of offering price)	4.75%	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or the amount redeemed, whichever is less)	none	1.00%
Wire Redemption Fee	15	15

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses Ohio Tax-Free Bond Fund		Class A	Class C
Management Fees		0.50%	0.50%
Distribution (12b-1) Fees		0.25%	1.00%
Other Expenses		0.37%	0.57%
Total Annual Fund Operating Expenses		1.12%	2.07%
Fee Waiver and/or Expense Reimbursement	[1]	(0.27%)	(0.47%)
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement		0.85%	1.60%

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 and then, except as
indicated, redeem all of your shares at the end of those periods. The example
also assumes that your investment has a 5% return each year and that the
Fund's operating expenses remain the same (reflecting any contractual fee
waivers). Although your actual costs may be higher or lower, based on these
assumptions your costs would be:

Expense Example Ohio Tax-Free Bond Fund (USD $)	Class A	Class C
Expense Example, with Redemption, 1 Year	558	263
Expense Example, with Redemption, 3 Years	789	603
Expense Example, with Redemption, 5 Years	1,038	1,070
Expense Example, with Redemption, 10 Years	1,750	2,363

Assuming No Redemption Class C

Expense Example, No Redemption (USD $)	Expense Example, No Redemption, 1 Year	Expense Example, No Redemption, 3 Years	Expense Example, No Redemption, 5 Years	Expense Example, No Redemption, 10 Years
Ohio Tax-Free Bond Fund Class C	163	603	1,070	2,363

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 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 most recent fiscal year, the Fund's portfolio
turnover rate was 33% of the average value of its portfolio.

The Fund's Principal Investment Strategies

The Fund invests at least 80% of its assets in high-quality, long-term Ohio
municipal obligations, including general obligation bonds, revenue bonds
and industrial development bonds. High-quality, long-term Ohio municipal
obligations are, for purposes of this Fund, considered to be obligations rated
within the three highest rating categories, with remaining maturities of 3 years
or more. This is a non-fundamental investment policy and the Fund will provide
shareholders with at least 60 days' prior notice of any change in this policy.
  
The Fund invests primarily in Ohio municipal obligations rated within the three
highest rating categories. The Fund may also purchase Ohio municipal obligations
and other securities rated within the four highest rating categories. If a
security's rating is reduced below the four highest rating categories, the security
will be sold. A security may also be sold due to changes in market conditions or
Fort Washington Investment Advisors, Inc.'s ("Fort Washington" or the "Sub-Advisor")
outlook. The Fund may purchase unrated obligations that the Sub-Advisor determines
to be of comparable quality. The Fund has a fundamental investment policy that under
normal circumstances at least 80% of the income it distributes will be exempt from
federal income tax, including the alternative minimum tax, and Ohio personal income
tax. This fundamental policy may not be changed without the approval of the Fund's
shareholders. The Fund will seek to maintain an average weighted maturity of
more than 10 years, but may reduce its average weighted maturity to 10 years or
below if warranted by market conditions.

The Fund concentrates its investments in securities of issuers located in the
State of Ohio and is non-diversified under the Investment Company Act of 1940,
as amended (the "1940 Act").

The Fund may invest more than 25% of its assets in municipal obligations within
a particular segment of the bond market (such as housing agency bonds or airport
bonds). The Fund may also invest more than 25% of its assets in private
activity bonds and industrial development bonds which may be backed only by
nongovernmental entities. Under normal circumstances, the Fund will limit its
investment in securities whose income is subject to the alternative minimum tax
to less than 20% of its assets. The Fund will not invest more than 25% of its
assets in securities backed by nongovernmental entities that are in the same
industry.

The Principal Risks

The Fund's share price will fluctuate. You could lose money on your investment
in the Fund and the Fund could return less than other investments. The Fund is
subject to the principal risks summarized below.

Credit Risk: The securities in the Fund's portfolio are subject to the
possibility that a deterioration, whether sudden or gradual, in the financial
condition of an issuer, or a deterioration in general economic conditions, could
cause an issuer to fail to make timely payments of principal or interest, when
due. This may cause the issuer's securities to decline in value.

Interest Rate Risk: As interest rates rise, the value of fixed income securities
the Fund owns will likely decrease. Longer-term securities are generally more
volatile, so the longer the average maturity or duration of these securities,
the greater their price risk. Duration is a measure of the expected life, taking
into account any prepayment or call features of the security, of a fixed income
security that is used to determine the price sensitivity of the security for a
given change in interest rates. Specifically, duration is the change in the
value of a fixed income security that will result from a 1% change in interest
rates, and generally is stated in years. Maturity, on the other hand, is the
date on which a fixed income security becomes due for payment of principal.

Investment-Grade Securities Risk: Investment grade debt securities may be
downgraded by a Nationally Recognized Statistical Rating Organization ("NRSRO")
to below investment-grade status, which would increase the risk of holding these
securities, or a rating may become stale in that it fails to reflect changes to
an issuer's financial condition. Investment-grade debt securities rated in the
lowest rating category by an NRSRO involve a higher degree of risk than
fixed-income securities in the higher-rating categories. While such securities
are considered investment-grade quality and are deemed to have adequate capacity
for payment of principal and interest, such securities lack outstanding investment
characteristics and have speculative characteristics as well.  For example, changes
in economic conditions or other circumstances are more likely to lead to a weakened
capacity to make principal and interest payments than is the case with higher-grade
securities.

Management Risk: The value of your investment may decrease if the sub-advisor's
judgment about the attractiveness, value, credit quality or income potential of
a particular security is incorrect.
  
Municipal Securities Risk: The value of municipal securities may be affected by
uncertainties in the municipal market related to legislation or litigation
involving the taxation of municipal securities or the rights of municipal
securities holders in the event of bankruptcy. In addition, the ongoing issues
facing the national economy may negatively impact the economic performance of
issuers of municipal securities, and may increase the likelihood that issuers of
securities in which the Fund may invest may be unable to meet their obligations.
Also, some municipal obligations may be backed by a letter of credit issued by a
bank or other financial institution. Adverse developments affecting banks or other
financial institutions could have a negative effect on the value of the Fund's
portfolio securities.
  
Non-Diversification Risk: The Fund is non-diversified, which means that it may
invest a greater percentage of its assets than diversified mutual funds in the
securities of a limited number of issuers. The use of a non-diversified investment
strategy may increase the volatility of the Fund's investment performance, as the
Fund may be more susceptible to risks associated with a single economic, political
or regulatory event than a diversified fund.
  
Prepayment Risk: Prepayment risk is the risk that a debt security may be paid
off and proceeds invested earlier than anticipated. Prepayment risk is more
prevalent during periods of falling interest rates.
  
Rating Agency Risk: Ratings represent the opinion of a Nationally Recognized
Statistical Rating Organization ("NRSRO") regarding the quality of the security
and are not a guarantee of quality. NRSROs may fail to make timely credit
ratings in response to subsequent events. In addition, NRSROs are subject to an
inherent conflict of interest because they are often compensated by the same
issuers whose securities they grade.

Sector Focus Risk: A fund that focuses its investments in the securities of a
particular bond market sector (e.g., housing agency bonds or airport bonds) is
subject to the risk that adverse circumstances will have a greater impact on the
fund than a fund that does not focus its investments in a particular sector. It
is possible that economic, business or political developments or other changes
affecting one security in the area of focus will affect other securities in that
area of focus in the same manner, thereby increasing the risk of such
investments.
  
State Risk: Political and economic conditions in the state of Ohio may impact
the value of Ohio municipal obligations. The Fund may lose value due to
decreased economic growth, increased unemployment and decreased tax revenue in
the state of Ohio.
  
An investment in the Fund is not a bank deposit and is not insured or guaranteed
by the FDIC or any other government agency. As with any mutual fund, there is
no guarantee that the Fund will achieve its goal.

The Fund's Performance

The bar chart and performance table below illustrate some indication of the
risks of investing in the Fund. The bar chart shows changes in performance
(before taxes) of the Fund's Class A shares for each of the last 10 calendar
years. The bar chart does not reflect any sales charges, which would reduce
your return. The Fund's past performance (before and after taxes) does not
necessarily indicate how it will perform in the future. Updated performance is
available at no cost by visiting www.TouchstoneInvestments.com or by calling
1.800.543.0407.

Ohio Tax-Free Bond Fund -- Class A Total Returns as of December 31

Best Quarter: 3rd Quarter 2009  5.43%    Worst Quarter: 4th Quarter 2010 (3.88%)

The year-to-date return of the Fund's Class A shares as of September 30, 2012 is
6.32%.

The performance table shows how the Fund's average annual total returns (before
and after taxes) for 1, 5 and 10 years compare with those of the Barclays
Capital Municipal Bond Index. After-tax returns are calculated using the
highest individual federal income tax rate and do not reflect the impact of
state and local taxes. Your after-tax returns may differ from those shown and
depend on your tax situation. The after-tax returns do not apply to shares held
in an IRA, 401(k) or other tax-deferred account. The after-tax returns shown in
the table are for Class A shares only. The after-tax returns for other classes
of shares offered by the Fund will differ from the Class A after-tax returns.

Average Annual Total Returns For the period ended December 31, 2011

Average Annual Total Returns Ohio Tax-Free Bond Fund	Label	1 Year	5 Years	10 Years
Class A	Ohio Tax-Free Bond Fund - Class A Return Before Taxes	3.41%	3.30%	4.04%
Class A After Taxes on Distributions	Ohio Tax-Free Bond Fund - Class A Return After Taxes on Distributions	3.39%	3.24%	3.93%
Class A After Taxes on Distributions and Sales	Ohio Tax-Free Bond Fund - Class A Return After Taxes on Distributions and Sale of Fund Shares	3.51%	3.34%	3.99%
Class C	Ohio Tax-Free Bond Fund - Class C Return Before Taxes	6.80%	3.53%	3.77%
Barclays Capital Municipal Bond Index	Barclays Capital Municipal Bond Index (reflects no deductions for fees, expenses or taxes)	10.70%	5.22%	5.38%

[1] Touchstone Advisors and the Trust have entered into an expense limitation agreement whereby Touchstone Advisors has contractually agreed to waive a portion of its fees and/or reimburse certain Fund expenses in order to limit annual fund operating expenses to 0.85% and 1.60% for Class A shares and Class C shares, respectively. This expense limitation will remain in effect until at least October 29, 2013 but can be terminated by a vote of the Board of Trustees of the Fund if they deem the termination to be beneficial to the shareholders. Touchstone Advisors is entitled to recoup, subject to approval by the Board of Trustees of the Fund, such amounts reduced or reimbursed for a period of up to three (3) years from the year in which Touchstone Advisors reduced its compensation and/or assumed expenses for the Fund. No recoupment will occur unless the Fund's expenses are below the expense limitation. See the discussion entitled "Contractual Fee Waiver Agreement" under the section entitled "The Funds' Management" in the Fund's Prospectus for more information.

XML

Tax-Free Money Market Fund (Prospectus Summary) | Tax-Free Money Market Fund

TOUCHSTONE TAX-FREE MONEY MARKET FUND SUMMARY

The Fund's Investment Goal

The Touchstone Tax-Free Money Market Fund seeks the highest level of interest
income exempt from federal income tax, consistent with the protection of
capital. The Fund is a money market fund, which seeks to maintain a constant
share price of $1.00 per share.

The Fund's Fees and Expenses

This table describes the fees and expenses that you may pay if you buy and hold
shares of the Fund:

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees Tax-Free Money Market Fund (USD $)	Class A	Class S
Wire Redemption Fee	15	15

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses Tax-Free Money Market Fund		Class A	Class S
Management Fees		0.50%	0.50%
Distribution (12b-1) Fees		0.25%	0.35%	[1]
Other Expenses		0.49%	0.45%
Total Annual Fund Operating Expenses		1.24%	1.30%
Fee Waiver and/or Expense Reimbursement	[2][3]	(0.35%)	(0.40%)
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement		0.89%	0.90%

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 and then
redeem all of your shares at the end of those periods. The example also assumes
that your investment has a 5% return each year and that the Fund's operating
expenses remain the same (reflecting any contractual fee waivers). Although your
actual costs may be higher or lower, based on these assumptions your costs would
be:

Expense Example Tax-Free Money Market Fund (USD $)	Class A	Class S
Expense Example, with Redemption, 1 Year	91	92
Expense Example, with Redemption, 3 Years	359	373
Expense Example, with Redemption, 5 Years	647	675
Expense Example, with Redemption, 10 Years	1,469	1,533

The Fund's Principal Investment Strategies

The Fund invests primarily in high-quality, short-term municipal obligations
that pay interest that is exempt from federal income tax. High-quality,
short-term municipal obligations are obligations rated within the two highest
rating categories, with maturities of 397 days or less and that are rated in one
of the two highest short-term rating categories or determined by the investment
adviser to be of comparable quality.
  
The Fund has a fundamental investment policy that under normal circumstances it
will invest its assets so that at least 80% of the income it distributes will be
exempt from federal income tax, including the alternative minimum tax. This
fundamental policy may not be changed without the approval of the Fund's
shareholders.
  
The Fund may invest more than 25% of its assets in municipal obligations within
a particular segment of the bond market (such as housing agency bonds or airport
bonds). The Fund may also invest more than 25% of its assets in private activity
bonds and industrial development bonds which may be backed only by nongovernmental
entities. Under normal circumstances, the Fund will limit its investment in
securities whose income is subject to the alternative minimum tax to less than 20%
of its assets. The Fund will not invest more than 25% of its assets in securities
backed by nongovernmental entities that are in the same industry.

The Fund may invest in the following types of municipal obligations:

o Tax-exempt bonds, including general obligation bonds, revenue bonds and
  industrial development bonds.

o Tax-exempt notes.

o Tax-exempt commercial paper.

o Floating and variable rate municipal obligations.

o When-issued obligations.

o Obligations with puts attached.
  
The Fund maintains a dollar-weighted average portfolio maturity of 60 days or
less, dollar-weighted average life of 120 days or less, and purchases only
United States dollar-denominated securities with maturities of 397 days or
less. The Fund will hold at least 30% of its total assets in "Weekly Liquid
Assets."  "Weekly Liquid Assets" include cash (including demand deposits),
direct obligations of the U.S. government, agency discount notes with remaining
maturities of 60 days or less, and securities (including repurchase agreements)
that will mature or are subject to a demand feature that is exercisable and
payable within 5 business days. The Fund is also subject to quality and
diversification requirements of Rule 2a-7 under the Investment Company Act of
1940 designed to help it maintain a constant share price of $1.00 per share.

The Principal Risks

An investment in the Fund is not a bank deposit and is not insured or guaranteed
by the FDIC or any other government agency. Although the Fund seeks to preserve
the value of your investment at $1.00 per share, it is possible to lose money by
investing in the Fund. There is no guarantee that the Fund will be able to
avoid a negative yield. The Fund is subject to the Principal Risks summarized
below.
  
Credit Risk: The securities in the Fund's portfolio are subject to the
possibility that a deterioration, whether sudden or gradual, in the financial
condition of an issuer, or a deterioration in general economic conditions, could
cause an issuer to fail to make timely payments of principal or interest, when
due. This may cause the issuer's securities to decline in value.
  
Interest Rate Risk: The yield of the Fund will vary from day to day due to
changes in interest rates. Generally, the Fund's yield will increase when
interests rate increase and will decrease when interest rates decrease.

Management Risk: The value of your investment may decrease if the sub-advisor's
judgment about the attractiveness, value, credit quality or income potential of
a particular security is incorrect.
  
Market Disruption Risk: During periods of extreme market volatility, prices of
securities held by the Fund may be negatively impacted due to imbalances between
credit market participants seeking to sell the same or similar securities and market
participants willing or able to buy such securities. As a result, the market prices
of securities held by the Fund could go down, at times without regard to the financial
condition of or specific events impacting the issuer of the security. A significant
enough market disruption or drop in market prices of securities held by the Fund,
especially at a time during which the Fund needs to sell securities to meet shareholder
redemption requests, could cause the value of the Fund's shares to decrease to a
price less than $1.00 per share.
  
Municipal Securities Risk: The value of municipal securities may be affected
by uncertainties in the municipal market related to legislation or litigation
involving the taxation of municipal securities or the rights of municipal
securities holders in the event of bankruptcy. In addition, the ongoing issues
facing the national economy may negatively impact the economic performance
of issuers of municipal securities, and may increase the likelihood that
issuers of securities in which the Fund may invest may be unable to meet
their obligations. Also, some municipal obligations may be backed by a letter
of credit issued by a bank or other financial institution. Adverse developments
affecting banks or other financial institutions could have a negative effect on
the value of the Fund's portfolio securities. This could cause the value of the
Fund's shares to decrease to a price less than $1.00 per share.
  
Rating Agency Risk: Ratings represent the opinion of a Nationally Recognized
Statistical Rating Organization ("NRSRO") regarding the quality of the security
and are not a guarantee of quality. NRSROs may fail to make timely credit
ratings in response to subsequent events. In addition, NRSROs are subject to
an inherent conflict of interest because they are often compensated by the
same issuers whose securities they grade.
  
Sector Focus Risk: A fund that focuses its investments in the securities of a
particular bond market sector (e.g., housing agency bonds or airport bonds) is
subject to the risk that adverse circumstances will have a greater impact on the
fund than a fund that does not focus its investments in a particular sector. It
is possible that economic, business or political developments or other changes
affecting one security in the area of focus will affect other securities in that
area of focus in the same manner, thereby increasing the risk of such
investments.

The Fund's Performance

The bar chart and performance table below illustrate some indication of the
risks of investing in the Fund. The bar chart shows changes in performance of
the Fund's Class A shares for each of the last 10 calendar years. The Fund's
past performance does not necessarily indicate how it will perform in the
future. Updated performance and current yield information is available at no
cost by visiting www.TouchstoneInvestments.com or by calling 1.800.543.0407.

Tax-Free Money Market Fund -- Class A Total Returns as of December 31

Best Quarter: 2nd Quarter 2007 0.74%    Worst Quarter: 4th Quarter 2011 0.00%

The year-to-date return of the Fund's Class A shares as of September 30, 2012 is
0.01%

Average Annual Total Returns For the periods ended December 31, 2011

Average Annual Total Returns Tax-Free Money Market Fund	Label	1 Year	5 Years	10 Years	Since Inception	Inception Date
Class A	Tax-Free Money Market Fund - Class A	0.01%	0.97%	1.18%
Class S	Tax-Free Money Market Fund - Class S	0.01%	0.84%		0.98%	Feb. 03, 2003

[1] The Fund is authorized under its 12b-1 plan for Class S shares to pay an annual fee of up to 1.00% of its average daily net assets. The Fund currently intends to limit the amount of 12b-1 fees for Class S shares to a maximum of 0.35% per annum of the average daily net assets of Class S shares.

[2] Touchstone Advisors and the Trust have entered into an expense limitation agreement whereby Touchstone Advisors has contractually agreed to waive a portion of its fees and/or reimburse certain Fund expenses in order to limit annual fund operating expenses to 0.89% and 0.90% for Class A shares and Class S shares, respectively. This expense limitation will remain in effect until at least October 29, 2013 but can be terminated by a vote of the Board of Trustees of the Fund if they deem the termination to be beneficial to the shareholders. Touchstone Advisors is entitled to recoup, subject to approval by the Board of Trustees of the Fund, such amounts reduced or reimbursed for a period of up to three (3) years from the year in which Touchstone Advisors reduced its compensation and/or assumed expenses for the Fund. No recoupment will occur unless the Fund's expenses are below the expense limitation. See the discussion entitled "Contractual Fee Waiver Agreement" under the section entitled "The Funds' Management" in the Fund's Prospectus for more information.

[3] The fee waivers do not correlate to the ratio of net expenses to average net assets shown in the annual report due to an additional voluntary fee waiver. During the last fiscal year, Touchstone Advisors voluntarily waived additional fees or reimbursed certain Fund expenses. Due to the voluntary fee waivers, the Fund's actual ratio of net expenses to average net assets was 0.33% and 0.33% for Class A shares and Class S shares, respectively.

XML

Label	Element	Value
Risk Return [Abstract]	rr_RiskReturnAbstract
Document Type	dei_DocumentType	485BPOS
Document Period End Date	dei_DocumentPeriodEndDate	Jun. 30, 2012
Registrant Name	dei_EntityRegistrantName	TOUCHSTONE TAX FREE TRUST
Central Index Key	dei_EntityCentralIndexKey	0000352667
Amendment Flag	dei_AmendmentFlag	false
Document Creation Date	dei_DocumentCreationDate	Oct. 29, 2012
Document Effective Date	dei_DocumentEffectiveDate	Oct. 29, 2012
Ohio Tax-Free Bond Fund (Prospectus Summary) | Ohio Tax-Free Bond Fund | Class A
Risk Return [Abstract]	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TOHAX
Ohio Tax-Free Bond Fund (Prospectus Summary) | Ohio Tax-Free Bond Fund | Class C
Risk Return [Abstract]	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TOHCX
Ohio Tax-Free Money Market Fund (Prospectus Summary) | Ohio Tax-Free Money Market Fund | Class A
Risk Return [Abstract]	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TOHXX
Ohio Tax-Free Money Market Fund (Prospectus Summary) | Ohio Tax-Free Money Market Fund | Institutional Shares
Risk Return [Abstract]	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TIOXX
Tax-Free Money Market Fund (Prospectus Summary) | Tax-Free Money Market Fund | Class A
Risk Return [Abstract]	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TTFXX
Tax-Free Money Market Fund (Prospectus Summary) | Tax-Free Money Market Fund | Class S
Risk Return [Abstract]	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TTSXX

XML

Label	Element	Value
Risk Return [Abstract]	rr_RiskReturnAbstract
ProspectusDate	rr_ProspectusDate	Oct. 30, 2012
Tax-Free Money Market Fund (Prospectus Summary) | Tax-Free Money Market Fund
Risk Return [Abstract]	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	TOUCHSTONE TAX-FREE MONEY MARKET FUND SUMMARY
Objective [Heading]	rr_ObjectiveHeading	The Fund's Investment Goal
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Touchstone Tax-Free Money Market Fund seeks the highest level of interest income exempt from federal income tax, consistent with the protection of capital. The Fund is a money market fund, which seeks to maintain a constant share price of $1.00 per share.
Expense [Heading]	rr_ExpenseHeading	The Fund's Fees and Expenses
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
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)
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]	rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees	The fee waivers do not correlate to the ratio of net expenses to average net assets shown in the annual report due to an additional voluntary fee waiver.
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 and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same (reflecting any contractual fee waivers). Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	The Fund's Principal Investment Strategies
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund invests primarily in high-quality, short-term municipal obligations that pay interest that is exempt from federal income tax. High-quality, short-term municipal obligations are obligations rated within the two highest rating categories, with maturities of 397 days or less and that are rated in one of the two highest short-term rating categories or determined by the investment adviser to be of comparable quality.    The Fund has a fundamental investment policy that under normal circumstances it will invest its assets so that at least 80% of the income it distributes will be exempt from federal income tax, including the alternative minimum tax. This fundamental policy may not be changed without the approval of the Fund's shareholders.    The Fund may invest more than 25% of its assets in municipal obligations within a particular segment of the bond market (such as housing agency bonds or airport bonds). The Fund may also invest more than 25% of its assets in private activity bonds and industrial development bonds which may be backed only by nongovernmental entities. Under normal circumstances, the Fund will limit its investment in securities whose income is subject to the alternative minimum tax to less than 20% of its assets. The Fund will not invest more than 25% of its assets in securities backed by nongovernmental entities that are in the same industry. The Fund may invest in the following types of municipal obligations: o Tax-exempt bonds, including general obligation bonds, revenue bonds and   industrial development bonds. o Tax-exempt notes. o Tax-exempt commercial paper. o Floating and variable rate municipal obligations. o When-issued obligations. o Obligations with puts attached.    The Fund maintains a dollar-weighted average portfolio maturity of 60 days or less, dollar-weighted average life of 120 days or less, and purchases only United States dollar-denominated securities with maturities of 397 days or less. The Fund will hold at least 30% of its total assets in "Weekly Liquid Assets."  "Weekly Liquid Assets" include cash (including demand deposits), direct obligations of the U.S. government, agency discount notes with remaining maturities of 60 days or less, and securities (including repurchase agreements) that will mature or are subject to a demand feature that is exercisable and payable within 5 business days. The Fund is also subject to quality and diversification requirements of Rule 2a-7 under the Investment Company Act of 1940 designed to help it maintain a constant share price of $1.00 per share.
Risk [Heading]	rr_RiskHeading	The Principal Risks
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	An investment in the Fund is not a bank deposit and is not insured or guaranteed by the FDIC or any other government agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the Fund. There is no guarantee that the Fund will be able to avoid a negative yield. The Fund is subject to the Principal Risks summarized below.    Credit Risk: The securities in the Fund's portfolio are subject to the possibility that a deterioration, whether sudden or gradual, in the financial condition of an issuer, or a deterioration in general economic conditions, could cause an issuer to fail to make timely payments of principal or interest, when due. This may cause the issuer's securities to decline in value.    Interest Rate Risk: The yield of the Fund will vary from day to day due to changes in interest rates. Generally, the Fund's yield will increase when interests rate increase and will decrease when interest rates decrease. Management Risk: The value of your investment may decrease if the sub-advisor's judgment about the attractiveness, value, credit quality or income potential of a particular security is incorrect.    Market Disruption Risk: During periods of extreme market volatility, prices of securities held by the Fund may be negatively impacted due to imbalances between credit market participants seeking to sell the same or similar securities and market participants willing or able to buy such securities. As a result, the market prices of securities held by the Fund could go down, at times without regard to the financial condition of or specific events impacting the issuer of the security. A significant enough market disruption or drop in market prices of securities held by the Fund, especially at a time during which the Fund needs to sell securities to meet shareholder redemption requests, could cause the value of the Fund's shares to decrease to a price less than $1.00 per share.    Municipal Securities Risk: The value of municipal securities may be affected by uncertainties in the municipal market related to legislation or litigation involving the taxation of municipal securities or the rights of municipal securities holders in the event of bankruptcy. In addition, the ongoing issues facing the national economy may negatively impact the economic performance of issuers of municipal securities, and may increase the likelihood that issuers of securities in which the Fund may invest may be unable to meet their obligations. Also, some municipal obligations may be backed by a letter of credit issued by a bank or other financial institution. Adverse developments affecting banks or other financial institutions could have a negative effect on the value of the Fund's portfolio securities. This could cause the value of the Fund's shares to decrease to a price less than $1.00 per share.    Rating Agency Risk: Ratings represent the opinion of a Nationally Recognized Statistical Rating Organization ("NRSRO") regarding the quality of the security and are not a guarantee of quality. NRSROs may fail to make timely credit ratings in response to subsequent events. In addition, NRSROs are subject to an inherent conflict of interest because they are often compensated by the same issuers whose securities they grade.    Sector Focus Risk: A fund that focuses its investments in the securities of a particular bond market sector (e.g., housing agency bonds or airport bonds) is subject to the risk that adverse circumstances will have a greater impact on the fund than a fund that does not focus its investments in a particular sector. It is possible that economic, business or political developments or other changes affecting one security in the area of focus will affect other securities in that area of focus in the same manner, thereby increasing the risk of such investments.
Risk Money Market Fund [Text]	rr_RiskMoneyMarketFund	Although the Fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the Fund.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	An investment in the Fund is not a bank deposit and is not insured or guaranteed by the FDIC or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	The Fund's Performance
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The bar chart and performance table below illustrate some indication of the risks of investing in the Fund. The bar chart shows changes in performance of the Fund's Class A shares for each of the last 10 calendar years. The Fund's past performance does not necessarily indicate how it will perform in the future. Updated performance and current yield information is available at no cost by visiting www.TouchstoneInvestments.com or by calling 1.800.543.0407.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart and performance table below illustrate some indication of the risks of investing in the Fund. The bar chart shows changes in performance of the Fund's Class A shares for each of the last 10 calendar years.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	1.800.543.0407
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.TouchstoneInvestments.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	The Fund's past performance does not necessarily indicate how it will perform in the future.
Bar Chart [Heading]	rr_BarChartHeading	Tax-Free Money Market Fund -- Class A Total Returns as of December 31
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Best Quarter: 2nd Quarter 2007 0.74%    Worst Quarter: 4th Quarter 2011 0.00% The year-to-date return of the Fund's Class A shares as of September 30, 2012 is 0.01%
Caption	rr_AverageAnnualReturnCaption	Average Annual Total Returns For the periods ended December 31, 2011
Tax-Free Money Market Fund (Prospectus Summary) | Tax-Free Money Market Fund | Class A
Risk Return [Abstract]	rr_RiskReturnAbstract
Wire Redemption Fee	rr_RedemptionFee	(15)
Management Fees	rr_ManagementFeesOverAssets	0.50%
Distribution (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Other Expenses	rr_OtherExpensesOverAssets	0.49%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.24%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.35%)	[1],[2]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.89%
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	2013-10-29
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	91
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	359
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	647
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	1,469
Annual Return 2002	rr_AnnualReturn2002	1.31%
Annual Return 2003	rr_AnnualReturn2003	0.53%
Annual Return 2004	rr_AnnualReturn2004	0.67%
Annual Return 2005	rr_AnnualReturn2005	1.75%
Annual Return 2006	rr_AnnualReturn2006	2.71%
Annual Return 2007	rr_AnnualReturn2007	2.88%
Annual Return 2008	rr_AnnualReturn2008	1.77%
Annual Return 2009	rr_AnnualReturn2009	0.19%
Annual Return 2010	rr_AnnualReturn2010	0.01%
Annual Return 2011	rr_AnnualReturn2011	0.01%
Year to Date Return, Label	rr_YearToDateReturnLabel	The year-to-date return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Sep. 30, 2012
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	0.01%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Best Quarter:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Jun. 30, 2007
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	0.74%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Worst Quarter:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Dec. 31, 2011
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	0.00%
Label	rr_AverageAnnualReturnLabel	Tax-Free Money Market Fund - Class A
1 Year	rr_AverageAnnualReturnYear01	0.01%
5 Years	rr_AverageAnnualReturnYear05	0.97%
10 Years	rr_AverageAnnualReturnYear10	1.18%
Tax-Free Money Market Fund (Prospectus Summary) | Tax-Free Money Market Fund | Class S
Risk Return [Abstract]	rr_RiskReturnAbstract
Wire Redemption Fee	rr_RedemptionFee	(15)
Management Fees	rr_ManagementFeesOverAssets	0.50%
Distribution (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.35%	[3]
Other Expenses	rr_OtherExpensesOverAssets	0.45%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.30%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.40%)	[1],[2]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.90%
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	2013-10-29
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	92
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	373
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	675
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	1,533
Label	rr_AverageAnnualReturnLabel	Tax-Free Money Market Fund - Class S
1 Year	rr_AverageAnnualReturnYear01	0.01%
5 Years	rr_AverageAnnualReturnYear05	0.84%
Since Inception	rr_AverageAnnualReturnSinceInception	0.98%
Inception Date	rr_AverageAnnualReturnInceptionDate	Feb. 03, 2003

[1] Touchstone Advisors and the Trust have entered into an expense limitation agreement whereby Touchstone Advisors has contractually agreed to waive a portion of its fees and/or reimburse certain Fund expenses in order to limit annual fund operating expenses to 0.89% and 0.90% for Class A shares and Class S shares, respectively. This expense limitation will remain in effect until at least October 29, 2013 but can be terminated by a vote of the Board of Trustees of the Fund if they deem the termination to be beneficial to the shareholders. Touchstone Advisors is entitled to recoup, subject to approval by the Board of Trustees of the Fund, such amounts reduced or reimbursed for a period of up to three (3) years from the year in which Touchstone Advisors reduced its compensation and/or assumed expenses for the Fund. No recoupment will occur unless the Fund's expenses are below the expense limitation. See the discussion entitled "Contractual Fee Waiver Agreement" under the section entitled "The Funds' Management" in the Fund's Prospectus for more information.

[2] The fee waivers do not correlate to the ratio of net expenses to average net assets shown in the annual report due to an additional voluntary fee waiver. During the last fiscal year, Touchstone Advisors voluntarily waived additional fees or reimbursed certain Fund expenses. Due to the voluntary fee waivers, the Fund's actual ratio of net expenses to average net assets was 0.33% and 0.33% for Class A shares and Class S shares, respectively.

[3] The Fund is authorized under its 12b-1 plan for Class S shares to pay an annual fee of up to 1.00% of its average daily net assets. The Fund currently intends to limit the amount of 12b-1 fees for Class S shares to a maximum of 0.35% per annum of the average daily net assets of Class S shares.

XML

Label	Element	Value
Risk Return [Abstract]	rr_RiskReturnAbstract
ProspectusDate	rr_ProspectusDate	Oct. 30, 2012
Ohio Tax-Free Money Market Fund (Prospectus Summary) | Ohio Tax-Free Money Market Fund
Risk Return [Abstract]	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	TOUCHSTONE OHIO TAX-FREE MONEY MARKET FUND SUMMARY
Objective [Heading]	rr_ObjectiveHeading	The Fund's Investment Goal
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Touchstone Ohio Tax-Free Money Market Fund seeks the highest level of current income exempt from federal income tax and Ohio personal income tax, consistent with liquidity and stability of principal. The Fund is a money market fund, which seeks to maintain a constant share price of $1.00 per share.
Expense [Heading]	rr_ExpenseHeading	The Fund's Fees and Expenses
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
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)
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]	rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees	The fee waivers do not correlate to the ratio of net expenses to average net assets shown in the annual report due to an additional voluntary fee waiver.
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 and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same (reflecting any contractual fee waivers). Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	The Fund's Principal Investment Strategies
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund invests primarily in high-quality, short-term Ohio municipal obligations issued by the State of Ohio, its agencies and municipalities, that pay interest that is exempt from both federal income tax and Ohio personal income tax. High-quality, short-term Ohio municipal obligations are obligations with maturities of 397 days or less and that are rated in one of the two highest short-term rating categories or determined by the investment adviser to be of comparable quality.     Under normal circumstances, at least 80% of the Fund's assets will be invested in Ohio municipal obligations. This is a non-fundamental investment policy and the Fund will provide shareholders with at least 60 days' prior notice of any change in this policy.    The Fund has a fundamental investment policy that under normal circumstances it will invest its assets so that at least 80% of its assets will be invested in short-term municipal obligations that pay interest that is exempt from federal income tax, including the alternative minimum tax, and Ohio personal income tax. This fundamental policy may not be changed without the approval of the Fund's shareholders.    The Fund may invest more than 25% of its assets in municipal obligations within a particular segment of the bond market (such as housing agency bonds or airport bonds). The Fund may also invest more than 25% of its assets in private activity bonds and industrial development bonds which may be backed only by nongovernmental entities. Under normal circumstances, the Fund will limit its investment in securities whose income is subject to the alternative minimum tax to less than 20% of its assets. The Fund will not invest more than 25% of its assets in securities backed by nongovernmental entities that are in the same industry. The Fund may invest in the following types of Ohio municipal obligations and other municipal obligations:    o Tax-exempt bonds, including general obligation bonds, revenue bonds and   industrial development bonds o Tax-exempt notes o Tax-exempt commercial paper o Floating and variable rate municipal obligations o When-issued obligations o Obligations with puts attached    The Fund concentrates its investments in securities of issuers located in the State of Ohio and is non-diversified under the Investment Company Act, as amended (the "1940 Act").    The Fund maintains a dollar-weighted average portfolio maturity of 60 days or less, a dollar-weighted average life of 120 days or less, and purchases only United States dollar-denominated securities with maturities of 397 days or less.  The Fund will hold at least 30% of its total assets in "Weekly Liquid Assets."  "Weekly Liquid Assets" include cash (including demand deposits), direct obligations of the U.S. government, agency discount notes with remaining maturities of 60 days or less, and securities (including repurchase agreements) that will mature or are subject to a demand feature that is exercisable and payable within 5 business days.  The Fund is also subject to quality and diversification requirements of Rule 2a-7 under the 1940 Act designed to help it maintain a constant share price of $1.00 per share.
Risk [Heading]	rr_RiskHeading	The Principal Risks
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	An investment in the Fund is not a bank deposit and is not insured or guaranteed by the FDIC or any other government agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the Fund. There is no guarantee that the Fund will be able to avoid a negative yield. The Fund is subject to the Principal Risks summarized below.    Credit Risk: The securities in the Fund's portfolio are subject to the possibility that a deterioration, whether sudden or gradual, in the financial condition of an issuer, or a deterioration in general economic conditions, could cause an issuer to fail to make timely payments of principal or interest, when due. This may cause the issuer's securities to decline in value.    Interest Rate Risk: The yield of the Fund will vary from day to day due to changes in interest rates. Generally, the Fund's yield will increase when interests rate increase and will decrease when interest rates decrease.    Management Risk: The value of your investment may decrease if the sub-advisor's judgment about the attractiveness, value, credit quality or income potential of a particular security is incorrect.    Market Disruption Risk: During periods of extreme market volatility, prices of securities held by the Fund may be negatively impacted due to imbalances between credit market participants seeking to sell the same or similar securities and market participants willing or able to buy such securities. As a result, the market prices of securities held by the Fund could go down, at times without regard to the financial condition of or specific events impacting the issuer of the security. A significant enough market disruption or drop in market prices of securities held by the Fund, especially at a time during which the Fund needs to sell securities to meet shareholder redemption requests, could cause the value of the Fund's shares to decrease to a price less than $1.00 per share. Municipal Securities Risk: The value of municipal securities may be affected by uncertainties in the municipal market related to legislation or litigation involving the taxation of municipal securities or the rights of municipal securities holders in the event of bankruptcy. In addition, the ongoing issues facing the national economy may negatively impact the economic performance of issuers of municipal securities, and may increase the likelihood that issuers of securities in which the Fund may invest may be unable to meet their obligations. Also, some municipal obligations may be backed by a letter of credit issued by a bank or other financial institution. Adverse developments affecting banks or other financial institutions could have a negative effect on the value of the Fund's portfolio securities. This could cause the value of the Fund's shares to decrease to a price less than $1.00 per share.    Non-Diversification Risk: The Fund is non-diversified, which means that it may invest a greater percentage of its assets than diversified mutual funds in the securities of a limited number of issuers. The use of a non-diversified investment strategy may increase the volatility of the Fund's investment performance, as the Fund may be more susceptible to risks associated with a single economic, political or regulatory event than a diversified fund.    Rating Agency Risk: Ratings represent the opinion of a Nationally Recognized Statistical Rating Organization ("NRSRO") regarding the quality of the security and are not a guarantee of quality. NRSROs may fail to make timely credit ratings in response to subsequent events. In addition, NRSROs are subject to an inherent conflict of interest because they are often compensated by the same issuers whose securities they grade.    Sector Focus Risk: A fund that focuses its investments in the securities of a particular bond market sector (e.g., housing agency bonds or airport bonds) is subject to the risk that adverse circumstances will have a greater impact on the fund than a fund that does not focus its investments in a particular sector. It is possible that economic, business or political developments or other changes affecting one security in the area of focus will affect other securities in that area of focus in the same manner, thereby increasing the risk of such investments.    State Risk: Political and economic conditions in the state of Ohio may impact the value of Ohio municipal obligations. The Fund's yield may decrease due to decreased economic growth, increased unemployment and decreased tax revenue in the state of Ohio.
Risk Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	Ratings represent the opinion of a Nationally Recognized Statistical Rating Organization ("NRSRO") regarding the quality of the security and are not a guarantee of quality. NRSROs may fail to make timely credit ratings in response to subsequent events. In addition, NRSROs are subject to an inherent conflict of interest because they are often compensated by the same issuers whose securities they grade.
Risk Money Market Fund [Text]	rr_RiskMoneyMarketFund	Although the Fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the Fund.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	An investment in the Fund is not a bank deposit and is not insured or guaranteed by the FDIC or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	The Fund's Performance
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The bar chart and performance table below illustrate some indication of the risks of investing in the Fund. The bar chart shows changes in performance of the Fund's Class A shares for each of the last 10 calendar years. The Fund's past performance does not necessarily indicate how it will perform in the future. Updated performance and current yield information is available at no cost by visiting www.TouchstoneInvestments.com or by calling 1.800.543.0407.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart and performance table below illustrate some indication of the risks of investing in the Fund. The bar chart shows changes in performance of the Fund's Class A shares for each of the last 10 calendar years.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	1.800.543.0407
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.TouchstoneInvestments.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	The Fund's past performance does not necessarily indicate how it will perform in the future.
Bar Chart [Heading]	rr_BarChartHeading	Ohio Tax-Free Money Market Fund Total Returns -- Class A Shares as of December 31
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Best Quarter: 3rd Quarter 2007  0.76%    Worst Quarter: 4th Quarter 2011 0.00%    The year-to-date return of the Fund's Class A shares as of September 30, 2012 is 0.01%
Caption	rr_AverageAnnualReturnCaption	Average Annual Total Returns For the periods ended December 31, 2011
Ohio Tax-Free Money Market Fund (Prospectus Summary) | Ohio Tax-Free Money Market Fund | Class A
Risk Return [Abstract]	rr_RiskReturnAbstract
Wire Redemption Fee	rr_RedemptionFee	(15)
Management Fees	rr_ManagementFeesOverAssets	0.47%
Distribution (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Other Expenses	rr_OtherExpensesOverAssets	0.28%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.00%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.25%)	[1],[2]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.75%
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	2013-10-29
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	77
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	294
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	528
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	1,202
Annual Return 2002	rr_AnnualReturn2002	1.02%
Annual Return 2003	rr_AnnualReturn2003	0.48%
Annual Return 2004	rr_AnnualReturn2004	0.57%
Annual Return 2005	rr_AnnualReturn2005	1.74%
Annual Return 2006	rr_AnnualReturn2006	2.78%
Annual Return 2007	rr_AnnualReturn2007	2.96%
Annual Return 2008	rr_AnnualReturn2008	1.84%
Annual Return 2009	rr_AnnualReturn2009	0.16%
Annual Return 2010	rr_AnnualReturn2010	0.01%
Annual Return 2011	rr_AnnualReturn2011	0.01%
Year to Date Return, Label	rr_YearToDateReturnLabel	The year-to-date return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Sep. 30, 2012
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	0.01%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Best Quarter:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Sep. 30, 2007
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	0.76%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Worst Quarter:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Dec. 31, 2011
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	0.00%
Label	rr_AverageAnnualReturnLabel	Ohio Tax-Free Money Market Fund - Class A Shares
1 Year	rr_AverageAnnualReturnYear01	0.01%
5 Years	rr_AverageAnnualReturnYear05	0.99%
10 Years	rr_AverageAnnualReturnYear10	1.15%
Ohio Tax-Free Money Market Fund (Prospectus Summary) | Ohio Tax-Free Money Market Fund | Institutional Shares
Risk Return [Abstract]	rr_RiskReturnAbstract
Wire Redemption Fee	rr_RedemptionFee	(15)
Management Fees	rr_ManagementFeesOverAssets	0.47%
Distribution (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.23%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.70%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.20%)	[1],[2]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.50%
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	2013-10-29
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	51
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	204
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	370
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	852
Label	rr_AverageAnnualReturnLabel	Ohio Tax-Free Money Market Fund - Institutional Shares
1 Year	rr_AverageAnnualReturnYear01	0.01%
5 Years	rr_AverageAnnualReturnYear05	1.14%
10 Years	rr_AverageAnnualReturnYear10	1.35%

[1] Touchstone Advisors and the Trust have entered into an expense limitation agreement whereby Touchstone Advisors has contractually agreed to waive a portion of its fees and/or reimburse certain Fund expenses in order to limit annual fund operating expenses to 0.75% and 0.50% for Class A shares and Institutional shares, respectively. This expense limitation will remain in effect until at least October 29, 2013 but can be terminated by a vote of the Board of Trustees of the Fund if they deem the termination to be beneficial to the shareholders. Touchstone Advisors is entitled to recoup, subject to approval by the Board of Trustees of the Fund, such amounts reduced or reimbursed for a period of up to three (3) years from the year in which Touchstone Advisors reduced its compensation and/or assumed expenses for the Fund. No recoupment will occur unless the Fund's expenses are below the expense limitation. See the discussion entitled "Contractual Fee Waiver Agreement" under the section entitled "The Funds' Management" in the Fund's Prospectus for more information.

[2] The fee waivers do not correlate to the ratio of net expenses to average net assets shown in the annual report due to an additional voluntary fee waiver. During the last fiscal year, Touchstone Advisors voluntarily waived additional fees or reimbursed certain Fund expenses. Due to the voluntary fee waivers, the Fund's actual ratio of net expenses to average net assets was 0.29% and 0.28% for Class A shares and Institutional shares, respectively.

XML

Ohio Tax-Free Money Market Fund (Prospectus Summary) | Ohio Tax-Free Money Market Fund

TOUCHSTONE OHIO TAX-FREE MONEY MARKET FUND SUMMARY

The Fund's Investment Goal

The Touchstone Ohio Tax-Free Money Market Fund seeks the highest level of
current income exempt from federal income tax and Ohio personal income tax,
consistent with liquidity and stability of principal. The Fund is a money
market fund, which seeks to maintain a constant share price of $1.00 per share.

The Fund's Fees and Expenses

This table describes the fees and expenses that you may pay if you buy and hold
shares of the Fund:

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees Ohio Tax-Free Money Market Fund (USD $)	Class A	Institutional Shares
Wire Redemption Fee	15	15

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses Ohio Tax-Free Money Market Fund		Class A	Institutional Shares
Management Fees		0.47%	0.47%
Distribution (12b-1) Fees		0.25%	none
Other Expenses		0.28%	0.23%
Total Annual Fund Operating Expenses		1.00%	0.70%
Fee Waiver and/or Expense Reimbursement	[1][2]	(0.25%)	(0.20%)
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement		0.75%	0.50%

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 and then redeem all
of your shares at the end of those periods. The example also assumes that your
investment has a 5% return each year and that the Fund's operating expenses
remain the same (reflecting any contractual fee waivers). Although your
actual costs may be higher or lower, based on these assumptions your costs
would be:

Expense Example Ohio Tax-Free Money Market Fund (USD $)	Class A	Institutional Shares
Expense Example, with Redemption, 1 Year	77	51
Expense Example, with Redemption, 3 Years	294	204
Expense Example, with Redemption, 5 Years	528	370
Expense Example, with Redemption, 10 Years	1,202	852

The Fund's Principal Investment Strategies

The Fund invests primarily in high-quality, short-term Ohio municipal
obligations issued by the State of Ohio, its agencies and municipalities,
that pay interest that is exempt from both federal income tax and Ohio
personal income tax. High-quality, short-term Ohio municipal obligations
are obligations with maturities of 397 days or less and that are rated in
one of the two highest short-term rating categories or determined by the
investment adviser to be of comparable quality.
   
Under normal circumstances, at least 80% of the Fund's assets will be invested
in Ohio municipal obligations. This is a non-fundamental investment policy and
the Fund will provide shareholders with at least 60 days' prior notice of any
change in this policy.
  
The Fund has a fundamental investment policy that under normal circumstances it
will invest its assets so that at least 80% of its assets will be invested in
short-term municipal obligations that pay interest that is exempt from federal
income tax, including the alternative minimum tax, and Ohio personal income
tax. This fundamental policy may not be changed without the approval of the
Fund's shareholders.
  
The Fund may invest more than 25% of its assets in municipal obligations within
a particular segment of the bond market (such as housing agency bonds or airport
bonds). The Fund may also invest more than 25% of its assets in private activity
bonds and industrial development bonds which may be backed only by nongovernmental
entities. Under normal circumstances, the Fund will limit its investment in
securities whose income is subject to the alternative minimum tax to less than
20% of its assets. The Fund will not invest more than 25% of its assets in
securities backed by nongovernmental entities that are in the same industry. The
Fund may invest in the following types of Ohio municipal obligations and other
municipal obligations:
  
o Tax-exempt bonds, including general obligation bonds, revenue bonds and
  industrial development bonds

o Tax-exempt notes

o Tax-exempt commercial paper

o Floating and variable rate municipal obligations

o When-issued obligations

o Obligations with puts attached
  
The Fund concentrates its investments in securities of issuers located in the
State of Ohio and is non-diversified under the Investment Company Act, as
amended (the "1940 Act").
  
The Fund maintains a dollar-weighted average portfolio maturity of 60 days or
less, a dollar-weighted average life of 120 days or less, and purchases only
United States dollar-denominated securities with maturities of 397 days or
less.  The Fund will hold at least 30% of its total assets in "Weekly Liquid
Assets."  "Weekly Liquid Assets" include cash (including demand deposits),
direct obligations of the U.S. government, agency discount notes with remaining
maturities of 60 days or less, and securities (including repurchase agreements)
that will mature or are subject to a demand feature that is exercisable and
payable within 5 business days.  The Fund is also subject to quality and
diversification requirements of Rule 2a-7 under the 1940 Act designed to help
it maintain a constant share price of $1.00 per share.

The Principal Risks

An investment in the Fund is not a bank deposit and is not insured or guaranteed
by the FDIC or any other government agency. Although the Fund seeks to preserve
the value of your investment at $1.00 per share, it is possible to lose money by
investing in the Fund. There is no guarantee that the Fund will be able to avoid
a negative yield. The Fund is subject to the Principal Risks summarized below.
  
Credit Risk: The securities in the Fund's portfolio are subject to the
possibility that a deterioration, whether sudden or gradual, in the financial
condition of an issuer, or a deterioration in general economic conditions, could
cause an issuer to fail to make timely payments of principal or interest, when
due. This may cause the issuer's securities to decline in value.
  
Interest Rate Risk: The yield of the Fund will vary from day to day due to
changes in interest rates. Generally, the Fund's yield will increase when
interests rate increase and will decrease when interest rates decrease.
  
Management Risk: The value of your investment may decrease if the sub-advisor's
judgment about the attractiveness, value, credit quality or income potential of
a particular security is incorrect.
  
Market Disruption Risk: During periods of extreme market volatility, prices of
securities held by the Fund may be negatively impacted due to imbalances between
credit market participants seeking to sell the same or similar securities and
market participants willing or able to buy such securities. As a result, the
market prices of securities held by the Fund could go down, at times without
regard to the financial condition of or specific events impacting the issuer
of the security. A significant enough market disruption or drop in market
prices of securities held by the Fund, especially at a time during which the
Fund needs to sell securities to meet shareholder redemption requests, could
cause the value of the Fund's shares to decrease to a price less than $1.00
per share.

Municipal Securities Risk: The value of municipal securities may be affected
by uncertainties in the municipal market related to legislation or litigation
involving the taxation of municipal securities or the rights of municipal
securities holders in the event of bankruptcy. In addition, the ongoing issues
facing the national economy may negatively impact the economic performance of
issuers of municipal securities, and may increase the likelihood that issuers
of securities in which the Fund may invest may be unable to meet their
obligations. Also, some municipal obligations may be backed by a letter of
credit issued by a bank or other financial institution. Adverse developments
affecting banks or other financial institutions could have a negative effect
on the value of the Fund's portfolio securities. This could cause the value of
the Fund's shares to decrease to a price less than $1.00 per share.
  
Non-Diversification Risk: The Fund is non-diversified, which means that it may
invest a greater percentage of its assets than diversified mutual funds in the
securities of a limited number of issuers. The use of a non-diversified investment
strategy may increase the volatility of the Fund's investment performance, as the
Fund may be more susceptible to risks associated with a single economic, political
or regulatory event than a diversified fund.
  
Rating Agency Risk: Ratings represent the opinion of a Nationally Recognized
Statistical Rating Organization ("NRSRO") regarding the quality of the security
and are not a guarantee of quality. NRSROs may fail to make timely credit
ratings in response to subsequent events. In addition, NRSROs are subject to
an inherent conflict of interest because they are often compensated by the same
issuers whose securities they grade.
  
Sector Focus Risk: A fund that focuses its investments in the securities of a
particular bond market sector (e.g., housing agency bonds or airport bonds) is
subject to the risk that adverse circumstances will have a greater impact on the
fund than a fund that does not focus its investments in a particular sector. It
is possible that economic, business or political developments or other changes
affecting one security in the area of focus will affect other securities in that
area of focus in the same manner, thereby increasing the risk of such
investments.
  
State Risk: Political and economic conditions in the state of Ohio may impact
the value of Ohio municipal obligations. The Fund's yield may decrease due to
decreased economic growth, increased unemployment and decreased tax revenue in
the state of Ohio.

The Fund's Performance

The bar chart and performance table below illustrate some indication of the
risks of investing in the Fund. The bar chart shows changes in performance of
the Fund's Class A shares for each of the last 10 calendar years. The Fund's
past performance does not necessarily indicate how it will perform in the
future. Updated performance and current yield information is available at no
cost by visiting www.TouchstoneInvestments.com or by calling 1.800.543.0407.

Ohio Tax-Free Money Market Fund Total Returns -- Class A Shares as of December 31

Best Quarter: 3rd Quarter 2007  0.76%    Worst Quarter: 4th Quarter 2011 0.00%
  
The year-to-date return of the Fund's Class A shares as of September 30, 2012 is
0.01%

Average Annual Total Returns For the periods ended December 31, 2011

Average Annual Total Returns Ohio Tax-Free Money Market Fund	Label	1 Year	5 Years	10 Years
Class A	Ohio Tax-Free Money Market Fund - Class A Shares	0.01%	0.99%	1.15%
Institutional Shares	Ohio Tax-Free Money Market Fund - Institutional Shares	0.01%	1.14%	1.35%

[1] Touchstone Advisors and the Trust have entered into an expense limitation agreement whereby Touchstone Advisors has contractually agreed to waive a portion of its fees and/or reimburse certain Fund expenses in order to limit annual fund operating expenses to 0.75% and 0.50% for Class A shares and Institutional shares, respectively. This expense limitation will remain in effect until at least October 29, 2013 but can be terminated by a vote of the Board of Trustees of the Fund if they deem the termination to be beneficial to the shareholders. Touchstone Advisors is entitled to recoup, subject to approval by the Board of Trustees of the Fund, such amounts reduced or reimbursed for a period of up to three (3) years from the year in which Touchstone Advisors reduced its compensation and/or assumed expenses for the Fund. No recoupment will occur unless the Fund's expenses are below the expense limitation. See the discussion entitled "Contractual Fee Waiver Agreement" under the section entitled "The Funds' Management" in the Fund's Prospectus for more information.

[2] The fee waivers do not correlate to the ratio of net expenses to average net assets shown in the annual report due to an additional voluntary fee waiver. During the last fiscal year, Touchstone Advisors voluntarily waived additional fees or reimbursed certain Fund expenses. Due to the voluntary fee waivers, the Fund's actual ratio of net expenses to average net assets was 0.29% and 0.28% for Class A shares and Institutional shares, respectively.