Why does a low monthly payment tell you little about a loan's total cost?
Correct answer
Answer B: Because a longer term and other costs can mean you pay much more in total.
Quick explanation
Paying less each month can mean paying for many more years. That is why you should distinguish between the monthly payment and the total cost.
Detailed explanation
The monthly installment only shows how much is regularly due. It does not by itself show how expensive the loan is overall. A low installment may result from spreading repayment over many years. Interest then accrues for longer, and the total amount repaid can rise substantially.
A comparison therefore needs at least the effective annual percentage rate, the term and the total amount. The annual percentage rate is intended to express much of the borrowing cost on an annual basis. Additional products or costs may still need separate assessment, such as optional payment protection insurance or particular charges.
Two offers can only be meaningfully compared if the loan amount, term and conditions are similar. Simply lowering the monthly installment by extending the term does not automatically improve the financial position. It can reduce the short-term monthly burden but commits income for longer and may increase total costs.
The right installment must be affordable. But the assessment should not end there: what matters is the total contractual obligation and how well it holds up when unexpected expenses arise.
Example or everyday application
Offer A requires 190 euros a month for four years. Offer B requires only 120 euros but runs for eight years. Although B looks cheaper monthly, the total amount repaid can be much higher.
Common misconception
A small installment automatically feels cheap. The explanation distinguishes the short-term monthly burden from the long-term total cost.