    <SEC-DOCUMENT>0001193125-21-154574-index.html : 20210507
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    <ACCEPTANCE-DATETIME>20210507124532
    ACCESSION NUMBER:		0001193125-21-154574
    CONFORMED SUBMISSION TYPE:	N-CSR
    PUBLIC DOCUMENT COUNT:		8
    CONFORMED PERIOD OF REPORT:	20210228
    FILED AS OF DATE:		20210507
    DATE AS OF CHANGE:		20210507
    EFFECTIVENESS DATE:		20210507

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			Invesco Municipal Income Opportunities Trust
    		CENTRAL INDEX KEY:			0000835333
    		IRS NUMBER:				133473972
    		STATE OF INCORPORATION:			MA
    		FISCAL YEAR END:			0530

    	FILING VALUES:
    		FORM TYPE:		N-CSR
    		SEC ACT:		1940 Act
    		SEC FILE NUMBER:	811-05597
    		FILM NUMBER:		21901419

    	BUSINESS ADDRESS:
    		STREET 1:		1555 PEACHTREE STREET, N.E.
    		STREET 2:		SUITE 1800
    		CITY:			ATLANTA
    		STATE:			GA
    		ZIP:			30309
    		BUSINESS PHONE:		404-439-3217

    	MAIL ADDRESS:
    		STREET 1:		1555 PEACHTREE STREET, N.E.
    		STREET 2:		SUITE 1800
    		CITY:			ATLANTA
    		STATE:			GA
    		ZIP:			30309

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	MORGAN STANLEY MUNICIPAL INCOME OPPORTUNITIES TRUST
    		DATE OF NAME CHANGE:	20011220

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	MSDW MUNICIPAL INCOME OPPORTUNITIES TRUST
    		DATE OF NAME CHANGE:	19981221

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	MUNICIPAL INCOME OPPORTUNITIES TRUST/MA
    		DATE OF NAME CHANGE:	19930721
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>N-CSR
    <SEQUENCE>1
    <FILENAME>d166583dncsr.htm
    <DESCRIPTION>N-CSR
    <TEXT>
    Document 1 - file: d166583dncsr.htm

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    <TYPE>EX-99.CODE ETH
    <SEQUENCE>2
    <FILENAME>d166583dex99codeeth.htm
    <DESCRIPTION>EX-99.CODE ETH
    <TEXT>
    Document 2 - file: d166583dex99codeeth.htm

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    <SEQUENCE>3
    <FILENAME>d166583dex99cert.htm
    <DESCRIPTION>EX-99.CERT
    <TEXT>
    Document 3 - file: d166583dex99cert.htm

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    <TYPE>EX-99.906CERT
    <SEQUENCE>4
    <FILENAME>d166583dex99906cert.htm
    <DESCRIPTION>EX-99.906CERT
    <TEXT>
    Document 4 - file: d166583dex99906cert.htm

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    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>g14173dsp001a.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: g14173dsp001a.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>g14173dsp001b.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: g14173dsp001b.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>g14173dsp004.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: g14173dsp004.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>g166583g0501142002078.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: g166583g0501142002078.jpg

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