purpose of taxation

Think of the road you drove on this morning, the school down the street, the streetlights, the courts, the army, the office that issues passports. None of these pays for itself by charging you at the door. They have to be paid for in advance and in common, by everyone together. Taxation is the way a government collects money from individuals and businesses so it can pay for the shared things a society needs.

A tax is a compulsory payment to a government, not a voluntary fee and not a price for a specific good you chose to buy. Governments tax in several ways: on income you earn, on things you buy (sales tax or value-added tax), on the wages employers pay (payroll taxes), on property you own, on company profits, and more. Beyond simply raising money, taxes are also used to redistribute (taking proportionally more from those who can afford it and spending on those who need help), to discourage harmful behavior (high taxes on tobacco or pollution), and to steer the economy (a tax break to encourage building factories or saving for retirement).

For accounting, taxation matters because tax is one of the largest expenses most businesses and people face, and it follows its own rulebook written by the government, not by accountants. The income a company reports to its shareholders and the income it reports to the tax authority are calculated under different rules and are usually different numbers. Much of the rest of this field is about understanding that gap and the records a business must keep to compute, pay, and prove its taxes.