Paying a loan off early: finish sooner or pay less each month

Paying more than the installment is one of the few ways to lower the cost of a loan after you have signed it. Interest is charged on the balance you still owe, so every real that reduces the balance today stops producing interest in every month still to come. This guide explains how that works, what you can ask the lender and how to choose between the two ways of using the extra money. The legal rules it cites are the Brazilian ones. A section at the end sums up how it works in the United States and the European Union.

Why paying extra saves interest

Each month's interest is the opening balance times the monthly rate. When you pay extra, the whole amount goes against the balance, and the next month's interest is calculated on a smaller number. The effect repeats every month until the end of the loan, which is why the same payment avoids more interest the earlier it is made: there are more months left for the saving to run. A payment in the last months of a loan avoids very little.

Your right to settle early

In Brazil, a consumer who takes credit is assured the right to settle the debt early, in whole or in part, with a proportional reduction of the interest and other charges. It is in art. 52, §2, of the Consumer Protection Code (opens in a new tab). In practice, the lender cannot keep charging the interest of months you no longer owe. The rules on fees and on how a partial payment is applied can vary by product, so ask for the details in writing.

Two ways to use the extra money

When you pay part of the balance, it can be applied in one of two ways, and the choice changes the result:

• Finish sooner: the installment stays the same and the loan ends earlier. It avoids the most interest, because the balance stays low for longer.
• Pay less each month: the final date stays and the remaining installments become smaller. It frees up your monthly budget, but avoids less interest.

An example: a loan of R$ 20,000.00 at 1.8% a month, over 24 months in PRICE, with an extra payment of R$ 5,000.00 made with installment 6.

The same R$ 5,000.00 avoids R$ 668.15 more interest when it is used to finish sooner. Each real paid in avoided R$ 0.31 of interest in that case, against R$ 0.18 when it is used to pay less each month. The second option is not wrong: it is the better one if the priority is to ease the monthly cost, as long as you know what it costs.

Small, regular payments add up too. Paying R$ 200.00 every month on top of the installment, on the same loan, puts in R$ 3,800.00 in total, avoids R$ 943.41 of interest and removes 4 installments.

Is it worth it?

Compare what the debt costs with what the same money would earn. Interest you do not pay is not taxed, while an investment's return is, so the comparison has to be made after tax. When the effective cost of the debt is higher than the net return of the best investment you can reach, paying the debt down wins, and for expensive credit it usually does. The guide on paying off a debt or investing explains how to compare them. Before using all your cash, keep a reserve for emergencies: paying a debt down cannot be undone, and borrowing again later is usually more expensive.

What to check before paying

• Ask for the settlement statement in writing, with the balance on the date you will pay.
• Say which option you want: finish sooner or pay less each month. Do not leave it to the lender's default.
• Check the new schedule after the payment, and confirm that the interest of the months you no longer owe is gone.
• Ask about insurance and fees linked to the loan: whether they are cancelled and whether any unused part is refunded.
• Pay through the lender's official channel and keep the receipt.

In the United States and the European Union

The right to repay early also exists outside Brazil, with its own rules on what the lender may charge:

• United States, mortgages: since 2014, Regulation Z allows a prepayment penalty only on fixed-rate loans that are qualified mortgages and are not higher-priced, and only in the first three years: up to 2% of the balance repaid in the first two years and up to 1% in the third. A lender that offers a loan with a penalty must also offer an alternative without one, and most ordinary mortgages have no penalty at all.
• United States, in practice: when you pay extra, ask for it to be applied to principal. Without that instruction, some lenders treat the money as an advance on the next payments. To pay off the loan, ask for a payoff statement, the exact amount to settle it on a given date.
• European Union, consumer credit: Directive (EU) 2023/2225 (opens in a new tab), which applies from 20 November 2026, guarantees early repayment at any time, with a reduction of the total cost. During a fixed-rate period, the lender may charge compensation of up to 1% of the amount repaid, or 0.5% if one year or less remains, and never more than the interest still to be paid.
• European Union, home loans: the Mortgage Credit Directive (2014/17/EU) guarantees the same right and leaves each country to set the compensation. In Spain, Law 5/2019 caps the fee at 0.25% of the amount repaid in the first three years or 0.15% in the first five, depending on the contract, for variable rates, and at 2% in the first ten years and 1.5% after that for fixed rates.

In any country, the choice between finishing earlier and paying less each month works the same way: ask which one the lender applies and get it in writing.

How to try it with your numbers

If the loan is already under way, the pay off or advance installments page answers this with what is left of it: enter the balance owed, the installments remaining, the contract's rate and the date of the next one, and it shows what it costs to settle everything or to advance only the last installments, already without the interest that has not yet accrued. If the loan has not been taken out yet, in the simulation, calculate your loan and then use the extra payments panel: set the amount, choose whether it is once, monthly or yearly and from which installment it starts, and the page shows the interest avoided and the installments removed. To understand why the installments look the way they do, read PRICE or SAC, and to see everything the loan costs, the guide on the total effective cost.