Starting January 1, 2006, balance due payment on federal forms can be made by credit card by phone or Internet. Integrated e-file and pay options begin on January 13th.
If you're not getting a refund, you can pay your balance due via credit card by calling 1-800-2PAY-TAX (1-800-272-9829) or 1-888-PAY-1040 (1-888-729-1040). You may also pay by using www.PAY1040.com or www.officialpayments.com. Your credit card issuer will charge you a convenience fee based on the amount of the payment, in addition to the fee for using this service. Both systems accept American Express, Discover, MasterCard, and Visa.