How to Compare Two Loan Offers
Last updated: June 2026
Don't compare on payment alone
A lower monthly payment usually means a longer term, more total interest, or both. Two loans can have very different payments yet similar costs — or similar payments and wildly different costs. Always look past the payment.
The three numbers that matter
- APR — captures the rate plus fees in one annual figure, so it compares offers on equal footing.
- Total cost — payment × number of payments, which reveals the true price over the loan's life.
- Term — a longer term lowers the payment but raises total interest.
A worked example
Borrowing $20,000:
- Offer A: 7% for 3 years → payment ≈ $618, total ≈ $22,250.
- Offer B: 6.5% for 5 years → payment ≈ $391, total ≈ $23,470.
Offer B has the lower rate and the lower payment — yet it costs about $1,200 more overall because you borrow for two extra years. If cash flow is tight, B may still be the right call; if you want the cheapest loan, A wins.
Watch the fine print
- Fees — origination or processing charges; APR is designed to fold these in.
- Prepayment penalties — these can erase the benefit of paying early.
- Variable rates — a low teaser rate can rise; model the worst case.
Run both offers through a payment calculator at the same loan amount and compare the total cost side by side before deciding.
Use the calculator
Put these ideas to work with the Payment Calculator. You can also browse all MoneyCalcKit calculators or read the calculator methodology for formulas and assumptions.
Frequently asked questions
Should I pick the loan with the lower payment?
Not automatically. A lower payment often means a longer term and more total interest. Compare total cost and APR, not just the payment.
Why use APR to compare loans?
APR rolls the rate and fees into one annual figure, so two offers can be compared fairly even if their fees differ.
What hidden terms should I check?
Origination fees, prepayment penalties, and whether the rate is fixed or variable. Each can change which loan is actually cheaper.