Form 497J Invesco Unit Trusts Taxa

[LETTERHEAD OF INVESCO CAPITAL MARKETS, INC.]

 

 

June 3, 2026

 

 

U.S. Securities and Exchange Commission

100 F Street, N.E.

Washington, DC 20549

 

Re:

Invesco Unit Trusts, Taxable Income Series 543 File No. 333-206154 CIK #0001608177

 

Ladies and Gentlemen:

 

In accordance with the provisions of Rule 497(j) under the Securities Act of 1933 (the "Securities Act") this letter serves to certify that the most recent post-effective amendment to the registration statement on Form S-6 for the above captioned Trust does not differ from that which would have been filed pursuant to Rule 497(b) of the Securities Act. The most recent post-effective amendment to the registration statement was filed electronically with the Commission on May 28, 2026.

 

 

Very truly yours,

 

/s/ Tara Baker

 

Tara Baker
Vice President, Business
Operations and Quality Assurance

Invesco Capital Markets, Inc.

 

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