Per the IRS: If you owe more tax, file your Form 1040X and pay the tax as soon as you can. This will stop added interest and penalties. Use IRS Direct Pay to pay your tax directly from your checking or savings account. <a rel="nofollow" target="_blank" href="
https://www.irs.gov/payments/direct-pay">https://www.irs.gov/payments/direct-pay</a> Your Social Security Number would tie your payment to your amended return.
