Debt Payoff Calculator: How Long Until You're Debt-Free?

Work out your debt-free date from your balance, interest rate and monthly payment, and see how quickly you can clear your debt.

The debt payoff calculator shows how long it takes to pay off your debt based on your balance, interest rate and monthly payment. You can also work out the monthly payment you need to be debt-free within a set time.

The debt payoff calculator shows how long it takes to become debt-free with a given monthly payment, or how large your payment needs to be to clear the debt within a set time. You also get an overview of the total interest cost and how your balance develops month by month.

How to use the calculator

Enter your remaining balance and the annual interest rate, then choose what you want the calculator to work out:

• Monthly payment: enter your monthly payment and see how long it takes before the debt is gone.
• Number of months: enter when you want to be debt-free and see the monthly payment that requires.

The result shows your time to debt-free or the payment you need, plus the total amount you will pay and how much of it is interest. The chart shows your remaining balance, total interest and total payments over time.

How the calculator works

Interest is added every month: the annual rate is divided by twelve and applied to the current balance. Each payment covers that month's interest first, and the rest pays down the debt. If you want to be debt-free within a set number of months, the calculator uses the standard annuity formula to find the fixed payment.

That also leads to the calculator's most important warning: if your payment is lower than the month's interest, the debt never goes down. At €25,000 and 4%, your payment has to be more than about €83 a month before you even start moving toward being debt-free.

Example

A €25,000 debt at 4% annual interest:

So the first extra €50 a month saves more than three years and about €1,900 in interest. If you want to be debt-free in exactly five years instead, you need to pay about €460 a month.

Tax relief and priorities

In some countries, interest on certain loans is tax-deductible, which makes the real cost lower than the nominal rate. The rules differ widely depending on where you live and what kind of loan you have. If, for example, a deduction cuts your interest cost by a quarter, a 4% rate works out to about 3% after tax. The calculator uses the nominal interest rate, so if you want to see the effect of a deduction, simply enter the lower rate.

If you have several loans, it pays the most to put extra payments toward the loan with the highest interest rate first. The difference between a mortgage at a few percent and credit card debt at twenty percent is huge, and the most expensive debt should always go first.

Once the debt is gone, your old monthly payment can go straight into savings instead. Try entering the amount in the compound interest calculator and see what it could grow to. If you have a specific goal for the money, the savings goal calculator works out the monthly amount for you.

Sources

The repayment itself is calculated with the standard annuity formula, based on the numbers you enter, without external data. The calculation is a guide and does not account for billing fees, setup fees or interest rate changes over the life of the loan.

Frequently asked questions

How long will it take to pay off my debt?

It depends on your balance, the interest rate and your monthly payment. A €25,000 debt at 4% interest with a payment of €200 a month is paid off in 13 years and 6 months. Raise the payment to €250 and the time drops to 10 years and 2 months, and you save almost €2,000 in interest.

Why does the calculator say my debt will never be paid off?

If your monthly payment is lower than the month's interest, the debt grows faster than you pay it down, and you will never become debt-free. On a €25,000 debt at 4% interest, the monthly interest is about €83, so your payment has to be above that before the debt starts shrinking at all.

How is the interest on the debt calculated?

The calculator uses a nominal annual interest rate, divides it by twelve and applies it every month to the current balance. Each payment covers the interest first, and the rest goes toward paying down the debt. So at the start, a larger part of your payment goes to interest, and as the balance falls, more and more goes toward the principal.

What does an extra payment do to my debt?

More than you might think. In the example of €25,000 at 4%, paying €50 more a month, from €200 to €250, makes you debt-free 3 years and 4 months sooner and saves about €1,900 in interest. Extra payments do the most good on high-interest debt, so pay off the most expensive debt first.

Does the calculator account for tax relief on interest?

No, the calculator uses the nominal interest rate. In some countries you can deduct part of the interest on certain loans, often mortgages, from your taxes, and the rules vary a lot from place to place. If that applies to you, your real interest cost is lower than the calculator shows. To include it, enter the interest rate after the deduction instead, for example 3% instead of 4% if the deduction cuts your interest cost by a quarter.

Should I pay off debt or save?

Every euro you pay off earns a guaranteed return equal to the loan's interest rate (after any tax relief), while saving gives an uncertain but historically higher return. Expensive debt such as credit cards and unsecured personal loans should usually be paid off first, while a cheap mortgage can more often run alongside your savings. It depends on the interest rate, your tax situation and your tolerance for risk.