Two offers, both say “around 6%”
Loan A quotes a note rate of 6.0%. Loan B quotes 6.0% too—but APR prints higher on B. Nothing “mystical” happened: APR rolls certain upfront costs and charges into an annualized figure so you can compare total borrowing cost, not just the interest accrual line.
Why lenders show both
The interest rate answers: how does the balance accrue each period? APR approximates: what does this loan cost per year in practice, including the stuff that drains cash at closing or in the first years? If you only shop the note, you can pick the prettier headline and lose on points, fees, or insurance baked into the life of the deal.
Concept vs all-in cost
Interest rate: the contract’s periodic rate story (before the packaging). APR: a regulated attempt at an apples-to-apples annual figure that folds in many finance charges—definitions vary by product and country, but the intent is consistent: make comparison harder to fake with a low headline.
How APR drifts upward from the note
- Points and lender fees that buy you a lower rate still cost dollars today—they belong in APR math.
- Mortgage insurance or financed add-ons may affect APR treatment depending on rules and disclosures.
- Teaser “0%” periods revert; the real APR lives in the tail after the promo ends.
Try it yourself
What you expected vs what APR catches
Expectation: “rate = cost” in one glance Reality: fees, points, and timing can lift APR above the note Goal: compare offers on the same horizon and structure
Where this saves money
- Mortgage shopping: weigh lender credits vs points with APR and dollars, not headline rates alone.
- Auto promos: a lower payment with a longer term can hide total cost—APR and total interest tell more.
- Refis: closing costs amortize over the years you actually keep the loan.
People actually do this
- Picking the lowest note rate while ignoring points that paid for it.
- Comparing APRs on different terms or with different cash-down assumptions.
- Trusting teaser APR windows without reading the post-teaser rate story—read the reset.
Use the calculator
FAQ
- Is lower APR always better?
Often for the same term and structure—but not if you sacrifice flexibility you need or ignore break-even on fees you will not keep long enough to recover.
- Why can two loans have the same interest rate but different APR?
Different fees, points, and financed charges change the all-in annualized cost APR is trying to summarize.
- Does APR include everything I will ever pay?
No. It follows disclosure rules—still read escrows, third-party fees, and behavioral costs (late fees, optional products) separately.