Related Clues:

• Internal Revenue Service, e.g.
• Levy imposer
• Tariff imposer
• Assessor
• One making assessments
• The federal government, come April
• Code writer of a kind
• Government, often
• Levy assessor
• Duty imposer
• The IRS, e.g
• Uncle Sam, say
• One imposing levies
• One imposing tariffs
• One making you do your duty?