As filed with the Securities and Exchange Commission on November 4, 2010
                                                  1940 Act File No. 811-02704


                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                    FORM N-8F
         APPLICATION FOR DEREGISTRATION OF REGISTERED INVESTMENT COMPANY


I.       GENERAL IDENTIFYING INFORMATION

1.       Reason fund is applying to deregister (check ONLY ONE; for
         descriptions, SEE Instruction 1 above):

         [X]      MERGER

         [ ]      LIQUIDATION

         [ ]      ABANDONMENT OF REGISTRATION
                  (Note: Abandonments of Registration answer ONLY questions 1
                  through 15, 24 and 25 of this form and complete verification
                  at the end of the form.)

         [ ]      Election of status as a BUSINESS DEVELOPMENT COMPANY
                  (Note: Business Development Companies answer ONLY questions 1
                  through 10 of this form and complete verification at the end
                  of the form.)

2.       Name of fund:

         Pioneer Tax Free Income Fund

3.       Securities and Exchange Commission File No.:  811-02704

4.       Is this an initial Form N-8F or an amendment to a previously filed
         Form N-8F?

         [X]      Initial Application           [ ]      Amendment

5.       Address of Principal Executive Office (include No. & Street, City,
         State, Zip Code):

          60 State Street
          Boston, Massachusetts  02109

6.       Name, address and telephone number of individual the Commission staff
         should contact with any questions regarding this form:

          Toby R. Serkin Bingham McCutchen LLP
          One Federal Street Boston,
          Massachusetts 02110
          (617) 951-8760

7.       Name, address and telephone number of individual or entity responsible
         for maintenance and preservation of fund records in accordance with
         rules 31a-1 and 31a-2 under the Act [17 CFR 270.31a-1, .31a-2]:

          Terrence J. Cullen
          Senior Vice President - Legal
          Pioneer Investment Management, Inc.
          60 State Street
          Boston, Massachusetts  02109
          (617) 422-4360

          Custodian:

          Brown Brothers Harriman & Co.
          40 Water Street
          Boston, Massachusetts  02109
          (617) 772-6390

          Transfer Agent:

          Pioneer Investment Management Shareholder Services, Inc.
          Boston, Massachusetts  02109
          (800) 225-6292


         NOTE:  ONCE DEREGISTERED, A FUND IS STILL REQUIRED TO MAINTAIN AND
         PRESERVE THE RECORDS DESCRIBED IN RULES 31A-1 AND 31A-2 FOR THE PERIODS
         SPECIFIED IN THOSE RULES.


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8.       Classification of fund (check only one):

         [X]      Management company;

         [ ]      Unit investment trust; or

         [ ]      Face-amount certificate company.

9.       Subclassification if the fund is a management company (check only one):

         [X]      Open-end          [ ]     Closed-end

10.      State law under which the fund was organized or formed (e.g., Delaware,
         Massachusetts):

         Delaware

11.      Provide the name and address of each investment adviser of the fund
         (including sub-advisers) during the last five years, even if the fund's
         contracts with those advisers have been terminated:

         Pioneer Investment Management, Inc.
         60 State Street
         Boston, Massachusetts 02109

12.      Provide the name and address of each principal underwriter of the fund
         during the last five years, even if the fund's contracts with those
         underwriters have been terminated:

         Pioneer Funds Distributor, Inc.
         60 State Street
         Boston, Massachusetts  02109

13.      If the fund is a unit investment trust ("UIT") provide:

         (a)      Depositor's name(s) and address(es):

         (b)      Trustee's name(s) and address(es):

14.      Is there a UIT registered under the Act that served as a vehicle for
         investment in the fund (E.G., an insurance company separate account)?

         [ ]      Yes               [X]     No

         If Yes, for each UIT state:

                  Name(s):

                  File No.:  811-______


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                  Business Address:

15.      (a)      Did the fund obtain approval from the board of directors
                  concerning the decision to engage in a Merger, Liquidation or
                  Abandonment of Registration?

                  [X]      Yes              [ ]      No

                  If Yes, state the date on which the board vote took place:

                  November 10, 2009

                  If No, explain:

         (b)      Did the fund obtain approval from the shareholders concerning
                  the decision to engage in a Merger, Liquidation or Abandonment
                  of Registration?

                  [ ]      Yes              [X]       No

                  If Yes, state the date on which the shareholder vote took
                  place:

                  If No, explain:

                  Neither applicable state law nor the organizational
                  documents of the fund or Pioneer AMT-Free Municipal Fund
                  (the "Acquiring Fund") required shareholder approval of the
                  reorganization of the fund into the Acquiring Fund.
                  Similarly, shareholder approval of the reorganization was
                  not required under the Investment Company Act of 1940, as
                  amended.


II.      DISTRIBUTIONS TO SHAREHOLDERS

16.      Has the fund distributed any assets to its shareholders in connection
         with the Merger or Liquidation?

         [X]      Yes               [ ]     No

         (a)      If Yes, list the date(s) on which the fund made those
                  distributions:

                  March 5, 2010

         (b)      Were the distributions made on the basis of net assets?

                  [X]      Yes              [ ]      No

         (c)      Were the distributions made PRO RATA based on share ownership?

                  [X]      Yes              [ ]      No

         (d)      If No to (b) or (c) above, describe the method of
                  distributions to shareholders. For Mergers, provide the
                  exchange ratio(s) used and explain how it was calculated:


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         (e)      LIQUIDATIONS ONLY:
                  Were any distributions to shareholders made in kind?

                  [ ]      Yes              [ ]      No

                  If Yes, indicate the percentage of fund shares owned by
                  affiliates, or any other affiliation of shareholders:

17.      CLOSED-END FUNDS ONLY:
         Has the fund issued senior securities?

         [ ]      Yes               [ ]     No

         If Yes, describe the method of calculating payments to senior security
         holders and distributions to other shareholders:

18.      Has the fund distributed ALL of its assets to the fund's shareholders?

         [X]      Yes               [ ]     No

         If No,
         (a)      How many shareholders does the fund have as of the date this
                  form is filed?

         (b)      Describe the relationship of each remaining shareholder to the
                  fund:

19.      Are there any shareholders who have not yet received distributions in
         complete liquidation of their interests?

         [ ]      Yes               [X]     No

         If Yes, describe briefly the plans (if any) for distributing to, or
         preserving the interests of, those shareholders:


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III.     ASSETS AND LIABILITIES

20.      Does the fund have any assets as of the date this form is filed? (SEE
         QUESTION 18 ABOVE)

         [ ]      Yes               [X]     No

         If Yes,
         (a)      Describe the type and amount of each asset retained by the
                  fund as of the date this form is filed:

         (b)      Why has the fund retained the remaining assets?

         (c)      Will the remaining assets be invested in securities?

                  [ ]      Yes              [ ]      No

21.      Does the fund have any outstanding debts (other than face-amount
         certificates if the fund is a face-amount certificate company) or any
         other liabilities?

         [ ]      Yes               [X]     No

         If Yes,
         (a)      Describe the type and amount of each debt or other liability:

         (b)      How does the fund intend to pay these outstanding debts or
                  other liabilities?


IV.      INFORMATION ABOUT EVENT(S) LEADING TO REQUEST FOR DEREGISTRATION

22.      (a)      List the expenses incurred in connection with the Merger or
                  Liquidation:

                  (i)      Legal expenses:                      $49,527.92
                                                                ----------

                  (ii)     Accounting expenses:                    None

                  (iii)    Other expenses (list and
                           identify separately):                   None

                  (iv)     Total expenses (sum of lines
                           (i)-(iii) above):                    $49,527.92
                                                                ===========

         (b)      How were those expenses allocated?

                  Pioneer, the fund's investment adviser, paid 50% of the
                  expenses incurred in connection with entering into and
                  carrying out the reorganization. The fund and Pioneer
                  AMT-Free Municipal Fund, the acquiring fund in the
                  reorganization, each paid 25% of the expenses incurred in
                  connection with entering into and carrying out the
                  reorganization.


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         (c)      Who paid those expenses?

                  Pioneer, the fund's investment adviser, paid 50% of the
                  expenses incurred in connection with entering into and
                  carrying out the reorganization. The fund and Pioneer
                  AMT-Free Municipal Fund, the acquiring fund in the
                  reorganization, each paid 25% of the expenses incurred in
                  connection with entering into and carrying out the
                  reorganization.


         (d) How did the fund pay for unamortized expenses (if any)?

         Not applicable.

23.      Has the fund previously filed an application for an order of the
         Commission regarding the Merger or Liquidation?

         [ ]      Yes               [X]     No

         If Yes, cite the release numbers of the Commission's notice and order
         or, if no notice or order has been issued, the file number and date the
         application was filed:


V.       CONCLUSION OF FUND BUSINESS

24.      Is the fund a party to any litigation or administrative proceeding?

         [ ]      Yes               [X]     No

         If Yes, describe the nature of any litigation or proceeding and the
         position taken by the fund in that litigation:

25.      Is the fund now engaged, or intending to engage, in any business
         activities other than those necessary for winding up its affairs?

         [ ]      Yes               [X]     No

         If Yes, describe the nature and extent of those activities:


VI.      MERGERS ONLY

26.      (a)      State the name of the fund surviving the Merger:

                    Pioneer AMT-Free Municipal Fund, a series of
                      Pioneer Series Trust II


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         (b)      State the Investment Company Act file number of the fund
                  surviving the Merger:

                  811-21460

         (c)      If the merger or reorganization agreement has been filed with
                  the Commission, state the file number(s), form type used and
                  date the agreement was filed:

         (d)      If the merger or reorganization agreement has NOT been filed
                  with the Commission, provide a copy of the agreement as an
                  exhibit to this form.

                  The Agreement and Plan of Reorganization between the fund and
                  Pioneer AMT-Free Municipal Fund is attached hereto as Exhibit
                  1


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                                  VERIFICATION

     The undersigned states that (i) he has executed this Form N-8F application
for an order under section 8(f) of the Investment Company Act of 1940 on behalf
of Pioneer Tax Free Income Fund, (ii) he is the Chairman of the Board, Trustee
and President of Pioneer Tax Free Income Fund, and (iii) all actions by
shareholders, trustees, and any other body necessary to authorize the
undersigned to execute and file this Form N-8F application have been taken. The
undersigned also states that the facts set forth in this Form N-8F application
are true to the best of his knowledge, information and belief.




                                             /s/ John F. Cogan, Jr.
                                                 ------------------
                                                 John F. Cogan, Jr.


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