How to compare loan offers: APR, term and the true cost

Lenders lead with the monthly payment because it is the number that feels affordable. The number that decides whether a loan is cheap or expensive is the total you repay. This guide shows how to compare offers properly, with worked examples you can check in the calculator.

The three numbers that matter

1. APR (annual percentage rate). The yearly cost of borrowing including interest and most mandatory fees. Because it folds fees in, APR is the fairest single number for comparing offers.
2. Term. How many months you pay. A longer term lowers the monthly payment and raises the total interest.
3. Total repaid. Monthly payment multiplied by the number of payments. This is the real price tag.

How the term changes the price

Here is the same $20,000 personal loan at 9% APR over three different terms:

Term	Monthly payment	Total repaid	Total interest
3 years	$636	$22,896	$2,896
5 years	$415	$24,910	$4,910
7 years	$322	$27,030	$7,030

Stretching from three to seven years cuts the payment in half, but more than doubles the interest. The same effect is far larger on a mortgage: $300,000 at 6.5% costs about $170,000 in interest over 15 years and about $383,000 over 30 years.

A longer term is not always wrong. It can be the right choice if you need the lower payment to keep a healthy emergency fund. Just choose it knowingly, and check whether you can overpay later without a penalty.

Fee traps: when the lower rate is the more expensive loan

Some lenders charge an origination fee, taken out of the money you receive. Compare these two five-year offers for $20,000:

• Offer A: 8% interest with a 5% origination fee. You receive $19,000 but repay as if you borrowed $20,000, at about $406 a month.
• Offer B: 10% interest, no fee. You receive the full $20,000 at about $425 a month.

Offer A looks cheaper on rate and on payment. But because you only receive $19,000, its effective APR is about 10.2%, slightly higher than Offer B. If you need the full $20,000, Offer A would force you to borrow more. Always compare APRs, not headline rates, and ask how fees are paid.

A checklist for every loan offer

• APR, not just the interest rate. Ask for it in writing.
• Total repaid over the full term.
• Fees: origination, late payment, and any annual or account fees.
• Prepayment penalty: can you pay early or overpay for free? This flexibility is worth a small rate premium.
• Fixed or variable rate: a variable rate can rise. Model your budget at a higher rate before signing.
• Insurance add-ons: payment protection or credit insurance is often optional and expensive. Decline it unless you have read the terms.

How to get a lower rate

• Check your credit first and fix any errors on your report. A better score usually means a lower APR.
• Prequalify with several lenders. Many offer a soft check that does not affect your score, so you can compare real rates.
• Shorten the term if the payment still fits your budget.
• Consider a co-signer only if both of you understand they are fully liable for the debt.

Use the calculator

The calculator below shows the monthly payment, total repaid and total interest for any amount, rate and term. Try the same loan over a shorter term, or add a few hundred dollars a month, and watch the total interest fall.

Tip: If you can afford the payment on a shorter term, take it. If you need the longer term for safety, keep it and overpay whenever you can. You get the low required payment and most of the interest savings.

This guide is general information, not financial advice. Loan rules, fees and consumer protections vary by country and lender.