With all the scrutiny around the ERC, what do you do if a business has incorrectly taken the credit?
To correct an improper ERC claim, the first thing to do is file another Form 941-X for each quarter. The 941-X should reflect the tax due equal to the refund (unless interest was paid to them). Refund the total amount of the refund check received, even if it is more due to interest paid by the IRS. This will reduce any interest the IRS is assessing on the taxpayer for the period in which the taxpayer has the funds.
Here is the IRS' Guidance for returning an erroneous refund:
It's an erroneous refund if you receive a refund you're not entitled to at all or for an amount more than you're entitled to.
If your refund was a paper Treasury check and hasn't been cashed:
If your refund was a paper Treasury check and has been cashed:
IRS mailing addresses based on the city (possibly abbreviated) located on the bottom text line in front of the words TAX REFUND on your refund check: