After you file

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.