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general affairs section (e.g. in a company); operations division

after-school education; cram school education

public information section (of a government, etc.); public information department

capital gains tax; capital gain taxation

Reserve Officers' Training Corps (US); ROTC

flat tax; uniform taxation

extracurricular

studying two lessons

tax-free article; non-taxable goods

spending heavily on virtual goods or premium features (in a video game, on a social networking service, etc.)

training section

surcharge on imports

prayer request; request for prayers

optimal taxation; optimum taxation

general education curriculum

Computing

detailed billing data

conduit taxation

excessive taxation

unitary tax

Business

corporate taxation

(police) crime scene unit; crime lab team; forensics

metered billing system; usage-based billing system; consumption-based billing system; pay-as-you-go system

parks section (e.g. of a city administration); parks division

dual corporate tax system