I need to change my estimated payments on my federal return. I thought they were more than they actually were. I want to pay the additional with an amended return.

[WeronikaS · Accepted solution]

When you amend your return, you will be able to adjust the estimated tax payments on your federal return. If the amounts calculated are not in line with what you plan on paying, you can always make the payments directly with IRS, rather than mailing the vouchers.