| REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933         | [    ] |
|-----------------------------------------------------------------|----------------------------|
|                                                            |                       |
| Pre-Effective Amendment No.                                     | [    ] |
|                                                            |                       |
| Post-Effective Amendment No.  34                      | [ X ]                      |
|                                                            |                       |
| REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940 | [    ] |
|                                                            |                       |
| Amendment No. 35                                                | [ X ]                      |

| [ X ]            | immediately upon filing pursuant to paragraph (b)                                                      |
|----------------------------|--------------------------------------------------------------------------------------------------------|
| [    ] | on (date) pursuant to paragraph (b)                                                                    |
| [    ] | 60 days after filing pursuant to paragraph (a)(i)                                                      |
| [    ] | on (date) pursuant to paragraph (a)(i)                                                                 |
| [    ] | 75 days after filing pursuant to paragraph (a)(ii)                                                     |
| [    ] | on (date) pursuant to paragraph (a)(ii) of Rule 485.                                                   |
| [    ] | This post-effective amendment designates a new effective date for a previous post-effective amendment. |
|                       |                                                                                                   |

| (a)   | Supplemental Declaration of Trust Amending and Restating the Declaration of Trust (ii) |
|-----------------|----------------------------------------------------------------------------------------|

| (b)   | By-laws (xiii) |
|-----------------|----------------|

| (c)   | Instruments defining rights of shareholders |
|-----------------|---------------------------------------------|

| (d)     |                                                                                                                             | Advisory and Administration Agreement (xvi)                                                                                      |
|---------|----------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------|
|    |                                                                                                                             |                                                                                                                             |
| (e)     | (i)                                                                                                                              | Distribution Agreement (iii)                                                                                                     |
|    |                                                                                                                             |                                                                                                                             |
|    | (ii)                                                                                                                             | Anti-Money Laundering Amendment to Distribution Agreement (ix)                                                                   |
|    |                                                                                                                             |                                                                                                                             |
|    | (iii)                                                                                                                            | Sales Agreement for brokerage firms (iii)                                                                                        |
|    |                                                                                                                             |                                                                                                                             |
|    | (iv)                                                                                                                             | Sales Agreement for financial institutions (iii)                                                                                 |
|    |                                                                                                                             |                                                                                                                             |
|    | (v)                                                                                                                              | Services Agreement (ii)                                                                                                          |
|    |                                                                                                                             |                                                                                                                             |
|    | (vi)                                                                                                                             | Shareholder Services Agreement (viii)                                                                                            |
|    |                                                                                                                             |                                                                                                                             |
| (f)     |                                                                                                                             | Not applicable                                                                                                                   |
|    |                                                                                                                             |                                                                                                                             |
| (g)     |                                                                                                                             | Custody Agreement (ii)                                                                                                           |
|    |                                                                                                                             |                                                                                                                             |
| (h)     | (i)                                                                                                                              | Transfer Agency Agreement (iv)                                                                                                   |
|    |                                                                                                                             |                                                                                                                             |
|    | (ii)                                                                                                                             | Anti-Money Laundering Amendment to Transfer Agency Agreement (ix)                                                                |
|    |                                                                                                                             |                                                                                                                             |
|    | (iii)                                                                                                                            | Customer Identification Services Amendment to Transfer Agency Agreement (x)                                                      |
|    |                                                                                                                             |                                                                                                                             |
| (i)     | (i)                                                                                                                              | Opinion of Fund Counsel (xiv)                                                                                                    |
|    |                                                                                                                             |                                                                                                                             |
| (i)     | (ii)                                                                                                                             | Consent of Fund Counsel (xvii)                                                                                                   |
|    |                                                                                                                             |                                                                                                                             |
| (j)     |                                                                                                                             | Consent of Independent Registered Public Accounting Firm (xvii)                                                                  |
|    |                                                                                                                             |                                                                                                                             |
| (k)     |                                                                                                                             | Not applicable                                                                                                                   |
|    |                                                                                                                             |                                                                                                                             |
| (l)     |                                                                                                                             | Not applicable                                                                                                                   |
|    |                                                                                                                             |                                                                                                                             |
| (m)     | (i)                                                                                                                              | Distribution Plan (iv)                                                                                                           |
|    |                                                                                                                             |                                                                                                                             |
|    | (ii)                                                                                                                             | Shareholder Services Plan (iv)                                                                                                   |
|    |                                                                                                                             |                                                                                                                             |
| (n)     |                                                                                                                             | Plan pursuant to Rule 18f-3 (xvii)                                                                                               |
|    |                                                                                                                             |                                                                                                                             |
| (o)     |                                                                                                                             | Reserved                                                                                                                         |
|    |                                                                                                                             |                                                                                                                             |
| (p)     | (i)                                                                                                                              | Code of Ethics of the Fund (xvii)                                                                                                |
|    |                                                                                                                             |                                                                                                                             |
|    | (ii)                                                                                                                             | Code of Ethics of the Manager (xvii)                                                                                             |
|    |                                                                                                                             |                                                                                                                             |
| (101)   |                                                                                                                             | Risk/return summary in interactive data format (xviii)                                                                           |
|    |                                                                                                                             |                                                                                                                             |
| (i)     |                                                                                                                             | Filed as an exhibit to Registrant's Post-Effective Amendment No. 13 dated January 29, 1996 and incorporated herein by reference. |
|    |                                                                                                                             |                                                                                                                             |
| (ii)    | Filed as an exhibit to Registrant's Post-Effective Amendment No. 15 dated April 15, 1996 and incorporated herein by reference.   |
|    |                                                                                                                             |
| (iii)   | Filed as an exhibit to Registrant's Post-Effective Amendment No. 16 dated April 24, 1997 and incorporated herein by reference.   |
|    |                                                                                                                             |
| (iv)    | Filed as an exhibit to Registrant's Post-Effective Amendment No. 17 dated April 28, 1998 and incorporated herein by reference.   |
|    |                                                                                                                             |
| (v)     | Filed as an exhibit to Registrant's Post-Effective Amendment No. 19 dated April 27, 1999 and incorporated herein by reference.   |
|    |                                                                                                                             |
| (vi)    | Filed as an exhibit to Registrant's Post-Effective Amendment No. 20 dated April 27, 2000 and incorporated herein by reference.   |
|    |                                                                                                                             |
| (vii)   | Filed as an exhibit to Registrant's Post- Effective Amendment No. 21 dated April 30, 2001 and incorporated herein by reference.  |
|    |                                                                                                                             |
| (viii)  | Filed as an exhibit to Registrant's Post- Effective Amendment No. 22 dated April 22, 2002 and incorporated herein by reference.  |
|    |                                                                                                                             |
| (ix)    | Filed as an exhibit to Registrant's Post- Effective Amendment No. 24 dated April 29, 2003 and incorporated herein by reference.  |
|    |                                                                                                                             |
| (x)     | Filed as an exhibit to Registrant's Post- Effective Amendment No. 25 dated April 22, 2004 and incorporated herein by reference.  |
|    |                                                                                                                             |
| (xi)    | Filed as an exhibit to Registrant's Post- Effective Amendment No. 26 dated April 29, 2005 and incorporated herein by reference.  |
|    |                                                                                                                             |
| (xii)   | Filed as an exhibit to Registrant's Post- Effective Amendment No. 27 dated April 27, 2006, and incorporated herein by reference. |
|    |                                                                                                                             |
| (xiii)  | Filed as an exhibit to Registrant's Post- Effective Amendment No. 28 dated April 25, 2007 and incorporated herein by reference.  |
|    |                                                                                                                             |
| (xiv)   | Filed as an exhibit to Registrant's Post- Effective Amendment No. 30 dated April 29, 2008 and incorporated herein by reference.  |
|    |                                                                                                                             |
| (xv)    | Filed as an exhibit to Registrant's Post-Effective Amendment No. 31 dated April 30, 2009 and incorporated herein by reference.   |
|    |                                                                                                                             |
| (xvi)   | Filed as an exhibit to Registrant's Post-Effective Amendment No. 32 dated April 29, 2010 and incorporated herein by reference.   |
|    |                                                                                                                             |
| (xvii)  | Filed as an exhibit to Registrant's Post-Effective Amendment No. 33 dated April 21, 2011 and incorporated herein by reference.   |
|    |                                                                                                                             |
| (xviii) | Filed herewith.                                                                                                                  |

| (a)   | Not applicable. |
|-----------------|-----------------|

| (b)   | Not applicable. |
|-----------------|-----------------|

|   | CHURCHILL TAX-FREE TRUST                                                                  |
|--------|-------------------------------------------------------------------------------------------|
|   | (Registrant)                                                                              |
|   |                                                                                      |
|   |                                                                                      |
|   | By           /s/ Diana P. Herrmann |
|   | Diana P. Herrmann                                                                         |
|   | President                                                                                 |

| SIGNATURE                 |   | TITLE                                 | DATE     |
|---------------------------|--------|---------------------------------------|----------|
|                      |   |                                  |     |
|                      |   |                                  |     |
| /s/ Diana P. Herrmann     |   |                                  |     |
| Diana P. Herrmann         |   | President and Trustee                 | 05/06/11 |
|                      |   |                                  |     |
| /s/ Thomas A. Christopher |   |                                  |     |
| Thomas A. Christopher     |   | Trustee                               | 05/06/11 |
|                      |   |                                  |     |
| /s/ David A. Duffy        |   |                                  |     |
| David A. Duffy            |   | Trustee                               | 05/06/11 |
|                      |   |                                  |     |
| /s/ Theodore T. Mason     |   |                                  |     |
| Theodore T. Mason         |   | Trustee                               | 05/06/11 |
|                      |   |                                  |     |
| /s/ Anne J. Mills         |   |                                  |     |
| Anne J. Mills             |   | Trustee                               | 05/06/11 |
|                      |   |                                  |     |
| /s/ John J. Partridge     |   |                                  |     |
| John J. Partridge         |   | Trustee                               | 05/06/11 |
|                      |   |                                  |     |
| /s/ James R. Ramsey       |   |                                  |     |
| James R. Ramsey           |   | Trustee                               | 05/06/11 |
|                      |   |                                  |     |
| /s/ Laureen L. White      |   |                                  |     |
| Laureen L. White          |   | Trustee                               | 05/06/11 |
|                      |   |                                  |     |
|                      |   |                                  |     |
| /s/ Joseph P. DiMaggio    |   |                                  |     |
| Joseph P. DiMaggio        |   | Chief Financial Officer and Treasurer | 05/06/11 |

| (101) | Risk/return summary in interactive data format. |
|-------|-------------------------------------------------|