Why your money buys less each year — the quiet tax called inflation

Imagine your grandparents telling you a movie ticket once cost a nickel. That's inflation — the gradual rise in the average price of goods and services over time, which means each unit of money buys a little less than it did before. Economists usually measure it by tracking a 'basket' of everyday items and seeing how its total cost changes year to year.

A little inflation is actually the goal. Most central banks aim for around 2% per year, because slowly rising prices encourage people to spend and invest rather than hoard cash, keeping the economy moving. The real danger is at the extremes: hyperinflation (prices spiraling out of control, as in 1920s Germany where money became nearly worthless) or deflation (falling prices, which sounds nice but can freeze spending as people wait for even lower prices).

The sneaky part is what inflation does to savings. If your bank pays 1% interest but prices rise 3%, your money is quietly losing purchasing power — you're getting poorer even as the number in your account grows. This is why inflation is sometimes called an invisible tax: no one hands you a bill, but your wealth erodes all the same.