1040X

[biglight]

When filing my 1040X amended return to the IRS, where do I see the interest and penalty on the increased reported income? It seems like common sense to pay the tax on the newly reported and corrected income at the same time as the interest and penalty.

[ThomasM125]

There is not a box to report estimated interest and penalties on a Form 1040-X, as there is on a Form 1040. However, you can pay in the additional amount if you know the number and the IRS will apply that the total due.