APR vs Interest Rate: What's the Difference?
The interest rate is the price of borrowing. The APR is the price of borrowing plus the lender's fees, expressed as a yearly rate. Two loans with the same 6.5% rate can be $9,000 apart in real cost — the APR is how you spot it.
What each number actually measures
- Interest rate: the percentage the lender charges on your balance each year. It determines your monthly payment — and nothing else.
- APR: the interest rate with most upfront lender costs (origination fees, discount points, some closing fees) blended in and spread across the full loan term. It answers: what does this loan really cost per year?
Lenders are legally required to disclose the APR (Truth in Lending Act) precisely because advertising the rate alone lets expensive fees hide. When you comparison-shop, sort by APR, not by rate.
Worked example: same 6.5% rate, $9,000 apart
Two lenders both offer $350,000 at 6.5% for 30 years — same payment of $2,212.24/month. But their fees differ:
Same rate, same payment — but Lender B's APR of 6.84% versus Lender A's 6.58% exposes the $9,000 fee gap. The rate told you the loans were identical. The APR told you the truth. (APR math: the $2,212.24 payment is fixed by the 6.5% rate; the APR is the rate that makes the present value of those payments equal the loan amount minus the upfront fees — $347,000 for Lender A, $338,000 for Lender B.)
Discount points: when a lower rate costs you
A “point” is 1% of the loan paid upfront to buy the rate down. Lender C offers 6.25% — but charges 1 point ($3,500):
- Payment drops to $2,155.01/month — a savings of $57.23/month versus 6.5%.
- Break-even: $3,500 ÷ $57.23 ≈ 61 months (5.1 years).
- Lender C's APR is 6.35% — lower than the no-points options, assuming you keep the loan 30 years.
Sell or refinance in year 3 and those points were $3,500 down the drain — the “better” APR assumed you'd stay the full term. APR assumes you keep the loan to maturity. If you won't, compute your own break-even instead of trusting the APR ranking.
| Rate | Upfront fees | APR | Best if… | |
|---|---|---|---|---|
| Lender A | 6.50% | $3,000 | 6.58% | You want low costs, no points |
| Lender B | 6.50% | $12,000 | 6.84% | Never — dominated by A |
| Lender C | 6.25% | $3,500 (1 pt) | 6.35% | You keep the loan 6+ years |
What APR doesn't tell you
- Third-party costs are excluded. Title insurance, appraisals, prepaid taxes and homeowners insurance don't enter the APR — so “cash to close” can still differ between loans with identical APRs.
- It assumes the full term. As the points example shows, APR understates the cost of fees if you sell or refinance early — and most 30-year mortgages don't survive 30 years.
- ARMs are fuzzy. Adjustable-rate APRs are computed against assumed future rates, so they're estimates stacked on estimates. Compare ARM margins and caps directly instead.
APR on credit cards and auto loans: same name, different math
“APR” doesn't mean the same thing everywhere, which trips up a lot of borrowers:
- Credit cards: the APR is the interest rate — there are no upfront fees blended in. A 24% APR card charges 24%/12 = 2% per month on the balance. Simple, brutal, transparent.
- Auto loans: the APR blends the rate with lender fees, like a mini-mortgage APR. A 7% rate with $500 in fees might show a 7.3% APR.
- Mortgages: the full treatment — points, origination fees, and prepaid finance charges all folded in, as the examples above show.
So when a credit card advertises “24% APR” and a mortgage advertises “6.84% APR,” the card's number is pure rate while the mortgage's number is rate-plus-fees. You can't compare APRs across product types — only within them.
Where to find the real APR: page 3 of the Loan Estimate
Every mortgage lender must give you a standardized Loan Estimate within 3 business days of application. Flip to page 3, the “Comparisons” section — it lists three numbers designed exactly for shopping:
- APR — the true-cost rate, for ranking lenders.
- Total of Payments — everything you'll pay over the loan's life (principal + interest + mortgage insurance + loan costs). The ultimate bottom line.
- Cash to Close — what you actually bring to the table, including the costs APR ignores.
Line up three lenders' page-3 sections side by side and the best deal usually jumps out in seconds. Any lender reluctant to provide a Loan Estimate — or quoting only a rate without one — has told you everything you need to know about shopping elsewhere.
The “no closing cost” refinance illusion
“No closing costs!” refinances are popular — and frequently misunderstood. The costs don't disappear; the lender either rolls them into the loan balance or charges a slightly higher rate to cover them (a “lender credit”). The APR exposes the trick: a no-cost refi at 6.75% will show a higher APR than a 6.5% refi with $4,000 in fees if you keep the loan long enough.
Neither is automatically better. The no-cost version wins if you sell or refinance again within a few years; the fee version wins if you stay. Compute the break-even the same way as points: fees divided by monthly savings. Marketing wants you to compare “free” versus “$4,000” — the APR wants you to compare total cost. Trust the APR.
APR vs APY: the savings-account mirror
If APR is the borrower's number, APY (annual percentage yield) is the saver's mirror image — and confusing the two is expensive. The difference is compounding:
- APR generally does not include the effect of compounding within the year (it's a nominal rate by convention).
- APY does include compounding — it's what you actually earn in a year.
A savings account at 4.00% APR compounded monthly pays about 4.07% APY. Banks advertise the bigger APY when they want your deposits and the smaller APR when they want your loan business — same math, opposite marketing. The rule: when money flows to you, compare APYs; when money flows from you, compare APRs. And when a credit card quotes a 24% APR, remember the effective annual rate with monthly compounding is actually about 26.8% — the disclosed number understates the true cost of carrying a balance.
The 0% APR trap on retail cards
Store cards love advertising “0% APR for 12 months!” — which sounds like free money. Read the fine print for the word deferred. On deferred-interest promotions, the 24% interest accrues silently in the background the whole time; if you owe even $1 when the promo ends, all of it gets added to your balance at once. True 0% APR promos (common on balance-transfer cards) only charge interest on what remains after the promo — a completely different deal hiding behind nearly identical advertising. If the paperwork says “deferred interest,” treat the card as a 24% loan with a deadline, not a 0% loan.
Compare real APRs in the APR Calculator →
Frequently asked questions
What is the difference between APR and interest rate?
The interest rate is the price of borrowing the money itself. The APR (annual percentage rate) rolls the interest rate together with most lender fees and points, spread over the loan term — so it reflects the true yearly cost of the loan, not just the rate.
Is a lower APR always the better loan?
Almost always, when you're comparing the same loan type and term — a lower APR means lower total cost. The main exception is if you plan to sell or refinance well before the break-even point on points: a loan with a higher APR from buying points can still win if you move in 3 years.
Why is my APR higher than my interest rate?
Because the APR folds in upfront costs — origination fees, points, mortgage insurance in some calculations — on top of the interest rate. The more fees a lender charges, the wider the gap between the quoted rate and the APR.
Does APR include all closing costs?
No. APR includes lender fees and prepaid finance charges (points, origination fees), but not third-party costs like title insurance, appraisals, or prepaid taxes and homeowners insurance. Two loans can have identical APRs and different cash-to-close.
What is a good APR on a mortgage right now?
Mortgage APRs typically run 0.1 to 0.3 percentage points above the note rate for a no-points loan. With the average 30-year fixed rate around 7.49% in October 2026, a no-points APR near 7.6-7.8% is typical — compare the APR gap between lenders, not just the headline rate.
Can APR be lower than the interest rate?
On adjustable-rate mortgages, yes — the APR calculation can produce a figure below the initial rate in some cases. On fixed-rate loans, APR is essentially always equal to or higher than the note rate.
Should I buy points to get a lower rate?
Only if you'll keep the loan past the break-even point. Paying 1 point ($3,500 on a $350K loan) to drop from 6.5% to 6.25% saves $57.23/month — break-even is about 61 months. Sell or refinance before month 61 and the points were wasted money.