You can use this link for payment options.  Unfortunately, you have already efiled so the filing has been sent already

 

https://www.irs.gov/payments/pay-taxes-by-credit-or-debit-card

 

 

Hi -  You can go to the IRS website and pay by credit card, no problem.  The website to go to is https://www.irs.gov/payments  Congratulations on being done!!

Thanks to you both. I realize the link to go to, I was just worried that since I originally efiled and clicked that I would mail a check with the voucher, that it was the only option to pay now. My return was accepted weeks ago but I was waiting to pay. I would rather just pay via credit card than going to post office. Just wanted to make sure they were not going to penalize me since I said I would mail check instead.