Originally Posted by redtop43

I've done this by accident (not paying with a card, just paying tax I thought I owed and having the IRS credit it to the wrong year and refund it). I think it took much longer than 2 months. I did get interest on the refund at a nice rate (like 4%). But keep in mind you'll be out the principal for however long it takes. I'd only use this method if I was really desperate for some spend.