To clarify, they withheld the amount I owed for 2015 from my 2020 refund, so now don't owe for 2015 anymore. If I would have filed timely in 2015 I would have b...

Maybe you can answer this question. I had not filed my 2015 taxes and owed money, but when I filed my 2020 taxes recently the IRS withheld the amount due. If I ...