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ACCESSION NUMBER:		0001683863-24-004655
CONFORMED SUBMISSION TYPE:	N-CSRS
PUBLIC DOCUMENT COUNT:		19
CONFORMED PERIOD OF REPORT:	20240531
FILED AS OF DATE:		20240722
DATE AS OF CHANGE:		20240722
EFFECTIVENESS DATE:		20240722

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MFS INTERMEDIATE HIGH INCOME FUND
		CENTRAL INDEX KEY:			0000833021
		ORGANIZATION NAME:           	
		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:		241129259

	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
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