Related Clues:

• Tax prep charge
• Sometimes-hidden charge
• Add-on cost
• Extra cost
• Commission, for instance
• "Convenience" charge
• Bill of fare excludes escargots for starters
• Consultant's payment
• Ticket surcharge
• Consulting payment
• Plumber's charge
• Tuition, for one
• Application expense
• Stipend or toll
• Surcharge, for one