<SEC-DOCUMENT>0001193125-18-220529-index.html : 20180718
<SEC-HEADER>0001193125-18-220529.hdr.sgml : 20180718
<ACCEPTANCE-DATETIME>20180718150507
ACCESSION NUMBER:		0001193125-18-220529
CONFORMED SUBMISSION TYPE:	N-CSRS
PUBLIC DOCUMENT COUNT:		11
CONFORMED PERIOD OF REPORT:	20180531
FILED AS OF DATE:		20180718
DATE AS OF CHANGE:		20180718
EFFECTIVENESS DATE:		20180718

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-CSRS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-05567
		FILM NUMBER:		18958354

	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-CSRS
<SEQUENCE>1
<FILENAME>d590187dncsrs.htm
<DESCRIPTION>MFS INTERMEDIATE HIGH INCOME FUND N-CSRS
<TEXT>
Document 1 - file: d590187dncsrs.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.(19)(A)(1)
<SEQUENCE>2
<FILENAME>d590187dex9919a1.htm
<DESCRIPTION>NOTICE TO SHAREHOLDERS - SOURCE OF DISTRIBUTION
<TEXT>
Document 2 - file: d590187dex9919a1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CERT
<SEQUENCE>3
<FILENAME>d590187dex99cert.htm
<DESCRIPTION>SECTION 302 CERTIFICATIONS
<TEXT>
Document 3 - file: d590187dex99cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.906CERT
<SEQUENCE>4
<FILENAME>d590187dex99906cert.htm
<DESCRIPTION>SECTION 906 CERTIFICATIONS
<TEXT>
Document 4 - file: d590187dex99906cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g590187ernst_youngllp.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g590187ernst_youngllp.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g590187g14y15.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g590187g14y15.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g590187g17m13.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g590187g17m13.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g590187g72s28.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g590187g72s28.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>g590187manning_photo.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: g590187manning_photo.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>g590187manning_sig.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: g590187manning_sig.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>g590187mfsblack.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: g590187mfsblack.jpg

</DOCUMENT>
</SEC-DOCUMENT>