<SEC-DOCUMENT>0001379491-18-005685-index.html : 20181026
<SEC-HEADER>0001379491-18-005685.hdr.sgml : 20181026
<ACCEPTANCE-DATETIME>20181026105126
ACCESSION NUMBER:		0001379491-18-005685
CONFORMED SUBMISSION TYPE:	485BPOS
PUBLIC DOCUMENT COUNT:		11
FILED AS OF DATE:		20181026
DATE AS OF CHANGE:		20181026
EFFECTIVENESS DATE:		20181030

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FIDELITY INCOME FUND /MA/
		CENTRAL INDEX KEY:			0000751199
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			0731

	FILING VALUES:
		FORM TYPE:		485BPOS
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	002-92661
		FILM NUMBER:		181140756

	BUSINESS ADDRESS:	
		STREET 1:		245 SUMMER STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210
		BUSINESS PHONE:		617-563-7000

	MAIL ADDRESS:	
		STREET 1:		245 SUMMER STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FIDELITY MORTGAGE SECURITIES FUND
		DATE OF NAME CHANGE:	19851103

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FIDELITY INCOME FUND /MA/
		CENTRAL INDEX KEY:			0000751199
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			0731

	FILING VALUES:
		FORM TYPE:		485BPOS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-04085
		FILM NUMBER:		181140755

	BUSINESS ADDRESS:	
		STREET 1:		245 SUMMER STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210
		BUSINESS PHONE:		617-563-7000

	MAIL ADDRESS:	
		STREET 1:		245 SUMMER STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FIDELITY MORTGAGE SECURITIES FUND
		DATE OF NAME CHANGE:	19851103
<SERIES-AND-CLASSES-CONTRACTS-DATA>
<EXISTING-SERIES-AND-CLASSES-CONTRACTS>
<SERIES>
<OWNER-CIK>0000751199
<SERIES-ID>S000007066
<SERIES-NAME>Fidelity Total Bond Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000019272
<CLASS-CONTRACT-NAME>Fidelity Total Bond Fund
<CLASS-CONTRACT-TICKER-SYMBOL>FTBFX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000019273
<CLASS-CONTRACT-NAME>Fidelity Advisor Total Bond Fund: Class A
<CLASS-CONTRACT-TICKER-SYMBOL>FEPAX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000019275
<CLASS-CONTRACT-NAME>Fidelity Advisor Total Bond Fund: Class C
<CLASS-CONTRACT-TICKER-SYMBOL>FCEPX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000019276
<CLASS-CONTRACT-NAME>Fidelity Advisor Total Bond Fund: Class M
<CLASS-CONTRACT-TICKER-SYMBOL>FEPTX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000019277
<CLASS-CONTRACT-NAME>Fidelity Advisor Total Bond Fund: Class I
<CLASS-CONTRACT-TICKER-SYMBOL>FEPIX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000150510
<CLASS-CONTRACT-NAME>Fidelity Advisor Total Bond Fund: Class Z
<CLASS-CONTRACT-TICKER-SYMBOL>FBKWX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000751199
<SERIES-ID>S000007069
<SERIES-NAME>Fidelity Government Income Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000019283
<CLASS-CONTRACT-NAME>Fidelity Government Income Fund
<CLASS-CONTRACT-TICKER-SYMBOL>FGOVX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000038098
<CLASS-CONTRACT-NAME>Fidelity Advisor Government Income Fund: Class A
<CLASS-CONTRACT-TICKER-SYMBOL>FVIAX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000038100
<CLASS-CONTRACT-NAME>Fidelity Advisor Government Income Fund: Class C
<CLASS-CONTRACT-TICKER-SYMBOL>FVICX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000038101
<CLASS-CONTRACT-NAME>Fidelity Advisor Government Income Fund: Class M
<CLASS-CONTRACT-TICKER-SYMBOL>FVITX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000038102
<CLASS-CONTRACT-NAME>Fidelity Advisor Government Income Fund: Class I
<CLASS-CONTRACT-TICKER-SYMBOL>FVIIX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000205069
<CLASS-CONTRACT-NAME>Fidelity Advisor Government Income Fund: Class Z
<CLASS-CONTRACT-TICKER-SYMBOL>FIKPX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000751199
<SERIES-ID>S000007070
<SERIES-NAME>Fidelity Intermediate Government Income Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000019284
<CLASS-CONTRACT-NAME>Fidelity Intermediate Government Income Fund
<CLASS-CONTRACT-TICKER-SYMBOL>FSTGX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000751199
<SERIES-ID>S000056368
<SERIES-NAME>Fidelity Flex Core Bond Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000177595
<CLASS-CONTRACT-NAME>Fidelity Flex Core Bond Fund
<CLASS-CONTRACT-TICKER-SYMBOL>FLXCX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000751199
<SERIES-ID>S000057288
<SERIES-NAME>Fidelity Total Bond K6 Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000182864
<CLASS-CONTRACT-NAME>Fidelity Total Bond K6 Fund
<CLASS-CONTRACT-TICKER-SYMBOL>FTKFX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000751199
<SERIES-ID>S000062811
<SERIES-NAME>Fidelity Series Government Bond Index Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000203458
<CLASS-CONTRACT-NAME>Fidelity Series Government Bond Index Fund
<CLASS-CONTRACT-TICKER-SYMBOL>FHNFX
</CLASS-CONTRACT>
</SERIES>
</EXISTING-SERIES-AND-CLASSES-CONTRACTS>
</SERIES-AND-CLASSES-CONTRACTS-DATA>
</SEC-HEADER>
<DOCUMENT>
<TYPE>485BPOS
<SEQUENCE>1
<FILENAME>filing842.htm
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
Document 1 - file: filing842.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.I LEGAL OPININ
<SEQUENCE>4
<FILENAME>exi.htm
<DESCRIPTION>EXI.HTM
<TEXT>
Document 4 - file: exi.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.J OTHER OPININ
<SEQUENCE>5
<FILENAME>exj1.htm
<DESCRIPTION>EXJ1.HTM
<TEXT>
Document 5 - file: exj1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.J OTHER OPININ
<SEQUENCE>6
<FILENAME>exj2.htm
<DESCRIPTION>EXJ2.HTM
<TEXT>
Document 6 - file: exj2.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>fipro_logo.jpg
<TEXT>
Document 7 - file: fipro_logo.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>img423749694.jpg
<TEXT>
Document 8 - file: img423749694.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>img423731828.jpg
<TEXT>
Document 9 - file: img423731828.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>img423746593.jpg
<TEXT>
Document 10 - file: img423746593.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>img423809414.jpg
<TEXT>
Document 11 - file: img423809414.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>img423810075.jpg
<TEXT>
Document 12 - file: img423810075.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>fi_logo.jpg
<TEXT>
Document 13 - file: fi_logo.jpg

</DOCUMENT>
</SEC-DOCUMENT>