Investing term

What is APR?

Annual Percentage Rate. The yearly interest cost of a loan, including most fees.

APR (Annual Percentage Rate) is the yearly cost of borrowing, expressed as a percentage and including most mandatory fees, so you can compare loans on a like-for-like basis. Two loans can quote the same interest rate but carry very different APRs once arrangement fees are folded in — the APR is the honest sticker price of the debt.

The higher the APR, the more expensive the debt, and the maths runs the other way too: money you don't owe at 22% is money that isn't costing you 22%. That's why clearing a high-APR balance is often the highest, safest "return" available to you — far more reliable than anything an investment can promise.

Why clearing debt beats investing
Credit-card APRwhat the debt costs22%Typical market returnlong-run average≈7%Paying off the 22% balance is a guaranteed 22% — unbeatable, tax-free.

A 22% APR is a cost you pay every year. Paying the balance off is a guaranteed 22% return — one no ordinary investment reliably matches.

For example

A credit card at 22% APR costs you 22 cents a year per dollar owed — beating that with investing is nearly impossible, so clearing it first is the smarter move.

Learn it by doing

That's APR in theory — it clicks when you use it. Practise it hands-on in a free, interactive lesson (Stage 1, Money, Goals & Your Financial Foundation).

Try the free lesson →

Why it matters to you

APR is the number that lets you rank debts and decide what to attack first — always the highest-APR balance. It also reframes debt repayment as an investment: paying off a 22% card is a guaranteed, tax-free 22% return, which almost no market can match with any certainty. Comparing a loan's APR rather than its headline rate is the only way to see which is genuinely cheaper.

⚠ The advertised rate isn't the APR

Lenders love to quote a low headline interest rate and bury the fees. The APR exists precisely to expose that — it rolls mandatory charges into one comparable figure. Judging a loan by its sticker rate instead of its APR is how a "cheap" loan turns out to cost more than a dearer-looking one.

Frequently asked questions

What's the difference between APR and interest rate?

The interest rate is the raw cost of borrowing the money; the APR adds most mandatory fees on top and expresses the all-in yearly cost. Two loans with the same interest rate can have different APRs, which is why APR is the fairer number for comparing them.

Is a lower APR always better?

For borrowing, yes — a lower APR means cheaper debt, all else equal. Just check that the comparison covers the same loan term and fee structure, since a low APR stretched over more years can still cost more in total interest.

Does paying off a credit card really beat investing?

Usually. Clearing a 22% APR balance locks in a guaranteed 22% saving, tax-free and risk-free. Long-run stock returns average far less and aren't guaranteed, so high-APR debt is almost always worth clearing before investing spare cash.

What is a good APR?

It depends on the debt: a mortgage APR might be low single digits, while credit cards often run 20% or more. The useful test isn't an absolute number — it's whether the APR is lower than the return you could earn elsewhere with the same money.

Read the full guide

FoundationsShould I Pay Off Debt or Invest First?A clear framework for the debt-vs-invest decision: when to crush the debt first, when to invest alongside it, and the one move you should never skip.7 min read

Related terms

CompoundingWhen your returns earn returns of their own, so money grows faster the longer it's invested.Emergency fundCash reserved for unexpected expenses, usually 3–6 months of your usual spending.Employer matchFree money from an employer that matches part of what you contribute to a workplace retirement plan.High-yield savings accountA bank account that pays meaningfully more interest than a standard checking account.
← Back to the full glossary