The maximum daily limit per credit card account is currently $49,999.99. Effective June 1, 2015, the daily limit per credit card account will be lowered to $24,999.99. Debit cards will continue to have no daily limit.
All credit card and debit card payments are processed through the Department of the Treasury’s Pay.gov system. The new daily limit for credit cards will automatically be enforced through the Pay.gov system. If cardholders exceed the daily limit, a message will indicate that the maximum daily limit has been reached and the payment will be rejected.
Existing alternatives for submitting large dollar payments are deposit account, electronic funds transfer (EFT) over the USPTO website, and wire transfer through the Federal Reserve Fedwire System.