IRS Letter 6475 for the Third Stimulus Check
The IRS Letter 6475 is a confirmation letter from the IRS which provides the total amount of the third stimulus check paid to the taxpayer.
IRS Form 3911 – How to Apply for a Lost Stimulus Check
The IRS Form 3911 is generally filed to report a lost or damage tax refund check. It can also be submitted to apply for a lost stimulus check.