<SEC-DOCUMENT>0001193125-22-013224-index.html : 20220120
<SEC-HEADER>0001193125-22-013224.hdr.sgml : 20220120
<ACCEPTANCE-DATETIME>20220120100902
ACCESSION NUMBER:		0001193125-22-013224
CONFORMED SUBMISSION TYPE:	N-CSR
PUBLIC DOCUMENT COUNT:		25
CONFORMED PERIOD OF REPORT:	20211130
FILED AS OF DATE:		20220120
DATE AS OF CHANGE:		20220120
EFFECTIVENESS DATE:		20220120

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MFS INTERMEDIATE HIGH INCOME FUND
		CENTRAL INDEX KEY:			0000833021
		IRS NUMBER:				046593681
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1130

	FILING VALUES:
		FORM TYPE:		N-CSR
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-05567
		FILM NUMBER:		22541056

	BUSINESS ADDRESS:	
		STREET 1:		111 HUNTINGTON AVENUE
		STREET 2:		24TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199
		BUSINESS PHONE:		6179545000

	MAIL ADDRESS:	
		STREET 1:		111 HUNTINGTON AVENUE
		STREET 2:		24TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COLONIAL INTERMEDIATE HIGH INCOME FUND
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>N-CSR
<SEQUENCE>1
<FILENAME>d295010dncsr.htm
<DESCRIPTION>MFS INTERMEDIATE HIGH INCOME FUND N-CSR
<TEXT>
Document 1 - file: d295010dncsr.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CODE ETH
<SEQUENCE>2
<FILENAME>d295010dex99codeeth.htm
<DESCRIPTION>CODE OF ETHICS
<TEXT>
Document 2 - file: d295010dex99codeeth.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CERT
<SEQUENCE>3
<FILENAME>d295010dex99cert.htm
<DESCRIPTION>SECTION 302 CERTIFICATIONS
<TEXT>
Document 3 - file: d295010dex99cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.906CERT
<SEQUENCE>4
<FILENAME>d295010dex99906cert.htm
<DESCRIPTION>SECTION 906 CERTIFICATIONS
<TEXT>
Document 4 - file: d295010dex99906cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.30E-3 NOTICE
<SEQUENCE>5
<FILENAME>d295010dex9930e3notice.htm
<DESCRIPTION>30E-3 NOTICE
<TEXT>
Document 5 - file: d295010dex9930e3notice.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.PROXYPOL
<SEQUENCE>6
<FILENAME>d295010dex99proxypol.htm
<DESCRIPTION>MFS PROXY VOTING POLICIES AND PROCEDURES
<TEXT>
Document 6 - file: d295010dex99proxypol.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.(19)(A)(1)
<SEQUENCE>7
<FILENAME>d295010dex9919a1.htm
<DESCRIPTION>NOTICE TO SHAREHOLDERS - SOURCE OF DISTRIBUTION
<TEXT>
Document 7 - file: d295010dex9919a1.htm

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<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g295010dsp013.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g295010dsp013.jpg

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<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>g295010dsp025a.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: g295010dsp025a.jpg

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<FILENAME>g295010dsp025b.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: g295010dsp025b.jpg

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<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: g295010dsp026a.jpg

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<DESCRIPTION>GRAPHIC
<TEXT>
Document 12 - file: g295010g0119053435469.jpg

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<SEQUENCE>13
<FILENAME>g295010g0119053513986.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 13 - file: g295010g0119053513986.jpg

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<SEQUENCE>14
<FILENAME>g295010g0119053605112.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 14 - file: g295010g0119053605112.jpg

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Document 15 - file: g295010g0119053639785.jpg

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Document 16 - file: g295010g0119053714599.jpg

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<FILENAME>g295010g0119053754413.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 17 - file: g295010g0119053754413.jpg

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<DESCRIPTION>GRAPHIC
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Document 18 - file: g295010img3450a1424.gif

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<DESCRIPTION>GRAPHIC
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Document 19 - file: g295010img4cf74e926.jpg

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Document 20 - file: g295010img6c4d7e1e5.jpg

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<FILENAME>g295010img7ed4f00b3.jpg
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<TEXT>
Document 21 - file: g295010img7ed4f00b3.jpg

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<FILENAME>g295010imgba30794f7.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 22 - file: g295010imgba30794f7.jpg

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<SEQUENCE>23
<FILENAME>g295010imgc5bab52c2.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 23 - file: g295010imgc5bab52c2.gif

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<SEQUENCE>24
<FILENAME>g295010imgc5c1da668.gif
<DESCRIPTION>GRAPHIC
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Document 24 - file: g295010imgc5c1da668.gif

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Document 25 - file: g295010imgf37510241.gif

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