To update your payment information for an existing pre-order:
Sign in to your TaxAct Account online.
Click Orders and Downloads, then select Update Credit Card Information (you may need to scroll down).
Click the Order ID, and follow the on-screen instructions to update your payment details.
If you need assistance, please visit our Contact TaxAct Service & Support page.
For information on when your credit card will be charged, see our When Is Your Credit Card Charged? FAQ.