2019 Amended Return urgent question

[GreenApple123]

My original return has an overpayment of $10,000 which I applied to 2020 estimated tax.

However, I realized that I forgot to report some interest income. I started the amended return, and found out that because the additional income, there is associated tax of $2,000.  1040-X Line 18 has $10,000 (overpayment shown on original return); and Line 20 has $2,000 (amount you owe). However, the revised 1040 Line 20 has $8,000 (amount you overpaid); and Line 22 shows $8,000 (amount applies to your 2020 estimated tax).

So, the 1040-x instruction says that I need to pay $2,000. However the revised 1040 now shows the reduced overpayment (from $10,000 to $8,000) and I don't need to pay IRS (this makes sense as the extra $2,000 tax is deducted from my overpayment).  

So, please help. Do I need to pay $2,000 as shown on Line 20 of 1040-x as Amount you owe?

Thank you so much

[DanaB27]

Yes, since you received your 2019 refund/ it was applied to your 2020 estimated taxes you will have to pay the $2,000 as show on Line 20 on Form 1040X to the IRS. 

Please see IRS Paying Your Taxes on how you can pay your taxes.

[GreenApple123]

Thanks. So, just to confirm that I will need to attach the revised Schedule B and 1040 with the 1040-X. Also, the revised 1040 will show $8,000 is applied to 2020 estimated tax (not the $10,000 in the original return). Is this ok?

[DanaB27]

Yes, you will need to attach the revised Schedule B and 1040 with the 1040-X. It is ok that the revised 1040 will show only $8,000 is applied to 2020 estimated tax since the IRS has applied the $10,000 from the original return.

[GreenApple123]

Thanks for your reply.

Just want to make sure I don't send in unnecessary form. I have seen comments indicating that Form 1040 is not needed to submit as it is not the "changed Form" (only Schedule B is). Is it optional to send in 1040 or required to do this?

[AnnetteB6]

Even though the Form 1040 was not the main form that was changed, there were items on that form that did change as a result of your amended return.  You should include the Form 1040 and Schedule B with your Form 1040X.

In the long run, it is better to include the form with the amended return instead of risking a delay in processing because it was not included. 

@GreenApple123