excise – As in tax, it is from Middle Dutch excijs, from Latin accensum, “to tax.” More…
tax – From Latin taxare, “censure, charge, or compute.” More…
toll – Traces back to Greek telos, “tax.” More…
disposable income, surplus income – Disposable income or surplus income is what you have left after taxes and other government obligations—i.e. what you have left to live on. More…