Calculate the true annual cost of a loan including fees
The Annual Percentage Rate (APR) is the true yearly cost of borrowing money — it includes both the interest rate and any fees charged by the lender. Two loans with the same interest rate can have very different APRs if one charges origination fees, arrangement fees, or other upfront costs.
Regulators in most countries require lenders to disclose APR precisely because it gives borrowers a standardised way to compare loan offers. Always compare APR rather than interest rate alone.
The simplified APR formula used in this calculator:
APR = (Total Interest + Fees) ÷ Loan Amount × 100
A more precise calculation — used by lenders — accounts for the timing of fees and uses an iterative method to find the rate that equates all cash flows. For most borrowers, the simplified formula gives a close enough estimate to compare options effectively.
| Loan | Amount | Interest rate | Fees | APR |
|---|---|---|---|---|
| Loan A | $10,000 | 5.0% | $0 | 5.0% |
| Loan B | $10,000 | 4.5% | $300 | 7.5% |
| Loan C | $10,000 | 6.0% | $0 | 6.0% |
Loan B has the lowest interest rate but the highest APR — because the $300 fee significantly increases the real cost on a one-year loan. On a longer loan, the fee would be spread over more payments and have less impact on APR.
Fees that are typically included in APR: origination fees, application fees, mortgage broker fees, points (prepaid interest), and required insurance premiums. Fees typically not included: late payment fees, optional insurance, and fees for services you choose. The exact definition varies by country and loan type — always check with your lender what is included in their disclosed APR.
A fixed fee has a larger impact on APR for short-term loans than long-term loans. A $500 fee on a $10,000 one-year loan adds 5% to the APR. The same fee on a 5-year loan adds only 1% to the APR. This is why APR comparisons are most meaningful when comparing loans of the same term.
The interest rate is the cost of borrowing the principal only. APR includes the interest rate plus fees, expressed as a yearly percentage. APR is always equal to or higher than the interest rate — if they are the same, the loan has no fees.
It standardises the cost of different loan structures. A low interest rate with high fees can cost more than a higher interest rate with no fees. APR combines both into one number, making comparison straightforward.
It can be, particularly when comparing loans of different lengths. APR is also less useful when there is a variable rate, since future rates are unknown. For mortgages with optional fees or complex structures, always read the full loan documentation.
No. Mortgage APR typically excludes property taxes, homeowners insurance, title insurance, and appraisal fees. It includes lender fees, origination charges, and mortgage points. The full cost of homeownership is higher than APR alone suggests.
Personal loan APRs range widely — from around 6% for borrowers with excellent credit to 36% or more for subprime loans. As a reference, credit card APRs typically range from 18–30%. If you are offered a personal loan APR above 20%, it is worth comparing alternatives.