Can I make an additional 4868 payment?

[Fahngieb]

I mailed in form 4868 for an extension with a personal check for payment, but now I realized that I may have underestimated the amount owed. Is it OK to make an additional payment on IRS direct pay in order to make up the difference? Will this confuse the IRS?

[Fahngieb]

Note: the check for the initial payment I sent has already posted.

[MinhT · Accepted solution]

Yes, you can use IRS Direct Pay at www.irs.gov/payments to make an additional payment. Make sure that you specify that the reason for the payment is Extension and the tax year is 2018. The IRS will know exactly what the payment is for.

[Fahngieb]

Thank you. I found this page on the IRS website: <a rel="nofollow" target="_blank" href="https://www.irs.gov/payments/frequency-limit-table-by-type-of-tax-payment">https://www.irs.gov/payme...>

Are these limits only relevant to credit card payments? I am not limited in the number of payments I can make via direct pay bank account method, correct?

[MinhT]

This table shows the maximum number of times you can use the payment site for each type of payments. For payments for form 4868, you are limited to twice each tax year. Your check payment does not count as a payment through the website.