|SECURITIES AND EXCHANGE COMMISSION                                                                      
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|Washington, D.C. 20549                                                                                  
|FORM N-1A                                                                                               
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|REGISTRATION STATEMENT (No. 002-92661)                                                                  
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|and                                                                                                     
|REGISTRATION STATEMENT (No. 811-04085)                                                                  
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|Fidelity Income Fund                                                                                    
|(Exact Name of Registrant as Specified in Charter)                                                      
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|245 Summer Street, Boston, Massachusetts 02210                                                          
|(Address Of Principal Executive Offices)      (Zip Code)                                                
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|Registrant's Telephone Number:  617-563-7000                                                            
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|Scott C. Goebel, Secretary                                                                              
|245 Summer Street                                                                                       
|Boston, Massachusetts 02210                                                                             
|(Name and Address of Agent for Service)                                                                 
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|It is proposed that this filing will become effective immediately upon filing pursuant to paragraph (b).

EXHIBIT INDEX

|Exhibit                                                | Exhibit No.
|------------------------------------------------------ | -----------
|XBRL Instance Document                                 | EX-101.INS 
|XBRL Taxonomy Extension Schema Document                | EX-101.SCH 
|XBRL Taxonomy Extension Calculation Linkbase Document  | EX-101.CAL 
|XBRL Taxonomy Extension Definition Linkbase Document   | EX-101.DEF 
|XBRL Taxonomy Extension Labels Linkbase Document       | EX-101.LAB 
|XBRL Taxonomy Extension Presentation Linkbase Document | EX-101.PRE 

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifies that it
meets all of the requirements for the effectiveness of this Registration Statement pursuant to Rule 485(b) under the Securities Act of 1933
and has duly caused this Post-Effective Amendment No. 100 to the Registration Statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Boston, and Commonwealth of Massachusetts, on the 15th day of October 2014.

|                                                                                                         | Fidelity Income Fund
|-------------------------------------------------------------------------------------------------------- | --------------------
|                                                                                                         | By                  
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Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed below by the following persons
in the capacities and on the dates indicated.

|(Signature)               |   | (Title)                       | (Date)          
|------------------------- | - | ----------------------------- | ----------------
|                          |   |                               |                 
|/s/Stephanie J. Dorsey    |   | President and Treasurer       | October 15, 2014
|Stephanie J. Dorsey       |   | (Principal Executive Officer) |                 
|                          |   |                               |                 
|/s/Howard J. Galligan III |   | Chief Financial Officer       | October 15, 2014
|Howard J. Galligan III    |   | (Principal Financial Officer) |                 
|                          |   |                               |                 
|/s/Abigail P. Johnson     |   | Trustee                       | October 15, 2014
|Abigail P. Johnson        |   |                               |                 
|                          |   |                               |                 
|/s/Elizabeth S. Acton     | * | Trustee                       | October 15, 2014
|Elizabeth S. Acton        |   |                               |                 
|                          |   |                               |                 
|/s/James C. Curvey        | * | Trustee                       | October 15, 2014
|James C. Curvey           |   |                               |                 
|                          |   |                               |                 
|/s/Albert R. Gamper, Jr.  | * | Trustee                       | October 15, 2014
|Albert R. Gamper, Jr.     |   |                               |                 
|                          |   |                               |                 
|/s/Robert F. Gartland     | * | Trustee                       | October 15, 2014
|Robert F. Gartland        |   |                               |                 
|                          |   |                               |                 
|/s/Arthur E. Johnson      | * | Trustee                       | October 15, 2014
|Arthur E. Johnson         |   |                               |                 
|                          |   |                               |                 
|/s/Michael E. Kenneally   | * | Trustee                       | October 15, 2014
|Michael E. Kenneally      |   |                               |                 
|                          |   |                               |                 
|/s/James H. Keyes         | * | Trustee                       | October 15, 2014
|James H. Keyes            |   |                               |                 
|                          |   |                               |                 
|/s/Marie L. Knowles       | * | Trustee                       | October 15, 2014
|Marie L. Knowles          |   |                               |                 
|                          |   |                               |                 
|/s/Kenneth L. Wolfe       | * | Trustee                       | October 15, 2014
|Kenneth L. Wolfe          |   |                               |                 
|                          |   |                               |                 

|* | By: | /s/Joseph R. Fleming                                                                     
|- | --- | -----------------------------------------------------------------------------------------
|  |     | Joseph R. Fleming,pursuant to powers of attorney dated October 1, 2014and filed herewith.

POWER OF ATTORNEY

We, the undersigned Directors or Trustees, as the case may be, of the following investment companies:

|Fidelity Aberdeen Street Trust
Fidelity Advisor Series II
Fidelity Advisor Series IV
Fidelity Boylston Street Trust
Fidelity California Municipal Trust
Fidelity California Municipal Trust II
Fidelity Central Investment Portfolios II LLC
Fidelity Charles Street Trust
Fidelity Colchester Street Trust
Fidelity Commonwealth Trust II
Fidelity Court Street Trust
Fidelity Court Street Trust II
Fidelity Garrison Street Trust
Fidelity Hereford Street Trust
Fidelity Income Fund
Fidelity Massachusetts Municipal Trust | Fidelity Merrimack Street Trust
Fidelity Money Market Trust
Fidelity Municipal Trust
Fidelity Municipal Trust II
Fidelity Newbury Street Trust
Fidelity New York Municipal Trust
Fidelity New York Municipal Trust II
Fidelity Oxford Street Trust
Fidelity Oxford Street Trust II
Fidelity Phillips Street Trust
Fidelity Revere Street Trust
Fidelity Salem Street Trust
Fidelity School Street Trust
Fidelity Union Street Trust
Fidelity Union Street Trust II
Variable Insurance Products Fund V
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in addition to any other Fidelity Fund for which the undersigned individuals serve as Directors or Trustees (collectively, the "Funds"), hereby revoke all previous powers of attorney we have given to sign and otherwise act in our names and behalf in matters involving any investment company for which FMR or an affiliate acts as investment adviser and hereby constitute and appoint Thomas C. Bogle, Joseph R.
Fleming, John V. O'Hanlon, Robert W. Helm, Megan C. Johnson, and Anthony H. Zacharski, each of them singly, our true and lawful attorneys-in-fact, with full power of substitution, and with full power to each of them, to sign for us and in our names in the appropriate capacities, all Registration Statements of the Funds on Form N-1A, or any successors thereto, any and all subsequent Amendments, Pre-Effective Amendments, or Post-Effective Amendments to said Registration Statements or any successors thereto, and any supplements or
other instruments in connection therewith, and generally to do all such things in our names and behalf in connection therewith as said attorneys-in-fact deem necessary or appropriate, to comply with the provisions of the Securities Act of 1933 and the Investment Company Act
of 1940, and all related requirements of the Securities and Exchange Commission.  We hereby ratify and confirm all that said attorneys-in-fact or their substitutes may do or cause to be done by virtue hereof.  This power of attorney is effective for all documents filed on or
after October 1, 2014.

WITNESS our hands on this first day of October 2014.

|/s/James C. Curvey       | /s/Michael E. Kenneally
|------------------------ | -----------------------
|James C. Curvey          | Michael E. Kenneally   
|/s/Albert R. Gamper, Jr. | /s/James H. Keyes      
|Albert R. Gamper, Jr.    | James H. Keyes         
|/s/Robert F. Gartland    | /s/Marie L. Knowles    
|Robert F. Gartland       | Marie L. Knowles       
|/s/Arthur E. Johnson     | /s/Kenneth L. Wolfe    
|Arthur E. Johnson        | Kenneth L. Wolfe       

POWER OF ATTORNEY

I, the undersigned Director or Trustee of the following investment companies:

|Fidelity Aberdeen Street Trust
Fidelity Advisor Series IV
Fidelity Boylston Street Trust
Fidelity California Municipal Trust
Fidelity California Municipal Trust II
Fidelity Central Investment Portfolios II LLC
Fidelity Charles Street Trust
Fidelity Commonwealth Trust II
Fidelity Garrison Street Trust
Fidelity Hereford Street Trust
Fidelity Income Fund
Fidelity Massachusetts Municipal Trust
Fidelity Merrimack Street Trust
Fidelity Municipal Trust | Fidelity Municipal Trust II
Fidelity Newbury Street Trust
Fidelity New York Municipal Trust
Fidelity New York Municipal Trust II
Fidelity Oxford Street Trust
Fidelity Oxford Street Trust II
Fidelity Phillips Street Trust
Fidelity Revere Street Trust
Fidelity Salem Street Trust
Fidelity School Street Trust
Fidelity Union Street Trust
Fidelity Union Street Trust II
Variable Insurance Products Fund V
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

in addition to any other Fidelity Fund for which the undersigned serves as Director or Trustee (collectively, the "Funds"), hereby constitute
and appoint Thomas C. Bogle, Joseph R. Fleming, John V. O'Hanlon, Robert W. Helm, Megan C. Johnson, and Anthony H. Zacharski,
each of them singly, my true and lawful attorneys-in-fact, with full power of substitution, and with full power to each of them, to sign for
me and in my name in the appropriate capacities, all Registration Statements of the Funds on Form N-1A, or any successors thereto, any
and all subsequent Amendments, Pre-Effective Amendments, or Post-Effective Amendments to said Registration Statements or any successors thereto, and any supplements or other instruments in connection therewith, and generally to do all such things in my name and behalf
in connection therewith as said attorneys-in-fact deem necessary or appropriate, to comply with the provisions of the Securities Act of 1933
and the Investment Company Act of 1940, and all related requirements of the Securities and Exchange Commission.  I hereby ratify and
confirm all that said attorneys-in-fact or their substitutes may do or cause to be done by virtue hereof.  This power of attorney is effective
for all documents filed on or after October 1, 2014.

WITNESS my hand on this first day of October 2014.

|/s/Elizabeth S. Acton | 
|--------------------- | 
|Elizabeth S. Acton    |