497

  PO Box 4333 Houston, TX 77210-4333 11 Greenway Plaza, Suite 1000 Houston, TX 77046-1173   713.626.1919 www.invesco.com

July 25, 2018

VIA EDGAR

Securities and Exchange Commission

100 F Street, NE

Washington, DC 20549

Re: AIM Investment Funds (Invesco Investment Funds)

CIK No. 0000826644

Ladies and Gentlemen:

Enclosed for filing pursuant to Rule 497(e) under the Securities Act of 1933, as amended, (the “1933 Act”) are exhibits containing interactive data format risk/return summary information that reflects the risk/return summary information in the supplement for Invesco Emerging Markets Flexible Bond Fund as filed pursuant to Rule 497(e) under the 1933 Act on July 13, 2018 (Accession Number: 0001193125-18-217771).

Please direct any comments or questions to the undersigned or contact me at (713) 214-1344.

Very truly yours,

/s/ Louis Ducote

Louis Ducote

Counsel

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Document Type	dei_DocumentType	497
Document Period End Date	dei_DocumentPeriodEndDate	Oct. 31, 2017
Registrant Name	dei_EntityRegistrantName	AIM INVESTMENT FUNDS (INVESCO INVESTMENT FUNDS)
Central Index Key	dei_EntityCentralIndexKey	0000826644
Amendment Flag	dei_AmendmentFlag	false
Document Creation Date	dei_DocumentCreationDate	Jul. 13, 2018
Document Effective Date	dei_DocumentEffectiveDate	Jul. 13, 2018
Prospectus Date	rr_ProspectusDate	Feb. 28, 2018

XML

Feb. 28, 2018

Summary Prospectus and Statutory Prospectus

Supplement dated July 13, 2018

The purpose of this supplement is to notify you of changes to the current prospectuses for Class A, C, R, R5, R6 and Y shares of the Invesco Emerging Markets Flexible Bond Fund

The following sentence is hereby added to the end of the first paragraph under the heading entitled “Principal Investment Strategies of the Fund” in each of the Fund’s prospectuses:

Emerging market countries are those countries in the world other than the United States, Canada, Japan, Australia, New Zealand, Norway, Switzerland, Hong Kong, Singapore, Israel, Austria, Belgium, Denmark, Finland, France, Germany, Ireland, Italy, Netherlands, Portugal, Spain, Sweden and the United Kingdom.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

AIM INVESTMENT FUNDS (INVESCO INVESTMENT FUNDS)

Prospectus Date

rr_ProspectusDate

Feb. 28, 2018

Supplement [Text Block]

aimif_SupplementTextBlock

Summary Prospectus and Statutory Prospectus

Supplement dated July 13, 2018

The purpose of this supplement is to notify you of changes to the current prospectuses for Class A, C, R, R5, R6 and Y shares of the Invesco Emerging Markets Flexible Bond Fund

The following sentence is hereby added to the end of the first paragraph under the heading entitled “Principal Investment Strategies of the Fund” in each of the Fund’s prospectuses:

Emerging market countries are those countries in the world other than the United States, Canada, Japan, Australia, New Zealand, Norway, Switzerland, Hong Kong, Singapore, Israel, Austria, Belgium, Denmark, Finland, France, Germany, Ireland, Italy, Netherlands, Portugal, Spain, Sweden and the United Kingdom.

INVESCO EMERGING MARKETS FLEXIBLE BOND FUND

Risk/Return:

rr_RiskReturnAbstract

Supplement [Text Block]

aimif_SupplementTextBlock

Summary Prospectus and Statutory Prospectus

Supplement dated July 13, 2018

The purpose of this supplement is to notify you of changes to the current prospectuses for Class A, C, R, R5, R6 and Y shares of the Invesco Emerging Markets Flexible Bond Fund

The following sentence is hereby added to the end of the first paragraph under the heading entitled “Principal Investment Strategies of the Fund” in each of the Fund’s prospectuses:

Emerging market countries are those countries in the world other than the United States, Canada, Japan, Australia, New Zealand, Norway, Switzerland, Hong Kong, Singapore, Israel, Austria, Belgium, Denmark, Finland, France, Germany, Ireland, Italy, Netherlands, Portugal, Spain, Sweden and the United Kingdom.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	AIM INVESTMENT FUNDS (INVESCO INVESTMENT FUNDS)
Prospectus Date	rr_ProspectusDate	Feb. 28, 2018
Document Creation Date	dei_DocumentCreationDate	Jul. 13, 2018