That could mean you are charged a penalty, interest or surcharge for late payment.

The Internal Revenue Service will compute the tax and send a bill for any tax owed and will not charge interest or penalty for late payment as long as the money is paid within 30 days of the notice.

So YES I will charge for payment by credit card - I have to in order to survive.

Consider exercising your right to charge penalty interest for late payment.

Penalty interest can also be charged for late payment of Landfill Tax, Climate Change Levy and Aggregates Levy returns.

Similarly, credit card issuers typically (until June 2006) charged customers a fee of around £25 for payment that is late, insufficient, or not made, and the same for exceeding their authorised credit limit.

Some resorts charge an additional 5% for payment by credit card.

If appropriate, consider inserting wording indicating that interest (at a specified rate etc) will be charged for late payment.