Yes, it is possible to find out if your federal tax refund check was cashed. You can initiate a refund trace through several methods:
If you filed a married filing jointly return, you cannot use the automated systems to initiate a trace. Instead, the IRS will send you a Form 3911, Taxpayer Statement Regarding Refund, or you can download the form to get the process started.
If the refund check was cashed, the Bureau of the Fiscal Service (BFS) will provide you with a claim package that includes a copy of the cashed check. You will need to follow the instructions for completing the claim package. The BFS will review your claim and the signature on the canceled check before determining whether they can issue you a replacement check. This review can take up to six weeks to complete.
If you need a photocopy of your refund check due to a dispute over the proceeds, you should call the IRS and speak to a representative to request assistance.
By law, the IRS cannot disclose any information about someone else’s refund without authorization. However, if you submit a Form 8821, Tax Information Authorization, for a person, the IRS may provide information to you regarding that person’s refund.
Sources:
CCA 200001036
CCA 200504028
Publication 1966
CCA 200503031