Millions of Americans who file their own returns have long learned about tax math mistakes only after the Internal Revenue ...

Thanks to the IRS MATH Act, the IRS must now explain mistakes in plain English, show any adjustments, and put your 60-day appeal deadline front and center. It will be a major upgrade from previously ...

If you received a 6470 letter from the U.S. Internal Revenue Service in the mail regarding a "math error" in relation to your 2020 tax returns, you might owe more money on your next return. The 6470 ...