Typically, credit card users will see a 3 percent surcharge on all transactions.
From the orlandosentinel.com
The surcharge will be $1 for spayed and neutered dogs and $3 for unaltered dogs.
From the democratandchronicle.com
It is a free service funded by a surcharge on consumers'monthly telephone bills.
From the denverpost.com
The plan would add a surcharge of 2.5% to everyone's 2009 state income tax bill.
From the latimes.com
If the price of oil went above $85, the surcharge would automatically disappear.
From the sacbee.com
Ticket prices for the show include a $5 surcharge over regular museum admission.
From the sacbee.com
So basically you want to be inconvenient yet charge a surcharge for being local?
From the guardian.co.uk
Mr. Tuma said the governor would sign the surcharge bill if it reaches his desk.
From the post-gazette.com
Plus a surcharge, which put the cost of a pair within shouting distance of $800.
From the time.com
More examples
An additional charge (as for items previously omitted or as a penalty for failure to exercise common caution or common skill)
Charge an extra fee, as for a special service
Overcharge: rip off; ask an unreasonable price
Fill to capacity with people; "The air raids had surcharged the emergency wards"
Print a new denomination on a stamp or a banknote
Fill to an excessive degree; "The air was surcharged with tension"
In the United Kingdom a public servant, for example a local government officer, who has unlawfully spent public funds, or caused loss to a public authority through misconduct may be surcharged to recover public money. ...
(Surcharges) An overprint is the addition of text (and sometimes graphics) to the face of a postage stamp or banknote after it has been printed (although some overprints are solely in the selvedge area of souvenir sheets). ...
An addition of extra charge on the agreed or stated price; An excessive price charged e.g. from an unsuspecting customer; An overprint on a stamp that alters (usually raises) the original nominal value of the stamp; used especially in times of hyperinflation; A charge that has been omitted ...