Debt Payoff Calculator

Compare avalanche vs snowball, see your debt-free date, set a target payoff month, and turn the plan into a monthly debt-free sprint.

1List debts

Balance, APR, and minimum.

2Pick the sprint

Avalanche, snowball, or a target date.

3Follow the target

One focused payoff move each month.

Your debts

Add credit cards, personal loans, student loans, car loans, or any balance with a monthly payment.

Payoff plan

Add your debts to compare payoff strategies.

Total debt
Debt-free date
Add $100/month impact
Goal payment gap
Debt avalanche

Highest APR first

Debt snowball

Smallest balance first

Next target

Enter debts to build a payoff sprint.

How this debt payoff calculator works

The calculator pays the minimum on every debt, then sends your extra monthly payment to one target debt at a time. Avalanche targets the highest interest rate first. Snowball targets the smallest balance first. Use it as a debt payoff planner, credit card debt payoff calculator, loan payoff schedule calculator, and debt-free date calculator.

Avalanche usually saves more interest. Snowball can feel more motivating because smaller balances disappear earlier. The best method is the one you can keep following.

When to use avalanche vs snowball

Use avalanche if your main goal is paying the least total interest. It usually wins mathematically, especially when one debt has a much higher APR than the others.

Use snowball if momentum keeps you consistent. Closing one balance early can improve motivation and make it easier to stay on track month after month.

Example payoff scenario

Imagine you have a $6,200 credit card at 22.9%, a $9,500 personal loan at 12.5%, and a $14,800 car loan at 7.2%. Avalanche sends extra money to the credit card first because it is the most expensive debt. Snowball sends extra money to the smallest balance first, which may clear the credit card quickly and create a visible early win.

How to interpret the results

Debt-free date is the estimated month when all listed balances reach zero if you keep the same payment plan. Total debt shows the balance you are attacking today. Add $100/month impact shows how a small permanent increase can shorten the timeline.

For a fuller payoff framework, including when avalanche, snowball, and hybrid plans each make sense, continue with the Debt Payoff Guide.

Assumptions and limitations

This calculator assumes rates, minimum payments, and extra payments stay constant. It does not model late fees, promotional APR expirations, balance transfers, new purchases, hardship plans, or tax effects. Real payoff dates can change if lenders adjust minimums as balances fall.

Calculator methodology

Formula used: balances accrue monthly interest based on APR, minimum payments are applied to every debt, and extra payments are directed by either highest APR first or smallest balance first.

How to act on it: pick the strategy you can follow for the next 90 days, automate minimums, and use any extra money on one target debt instead of spreading it thinly.

What this calculator does not include: late fees, promotional APR expirations, new purchases, balance transfer fees, negotiated settlements, hardship plans, or lender changes to minimum payments.

Simple 5-step payoff plan

1) List every debt with balance, APR, and minimum payment.

2) Build a small emergency buffer so new expenses do not create fresh debt.

3) Set one fixed extra-payment amount you can sustain every month.

4) Auto-pay minimums and direct extra money to one target debt.

5) Every 30 days, review progress and increase extra payment when possible.

Mistakes that slow debt payoff

Paying extra inconsistently, using cards again while paying down balances, and skipping a review schedule are the most common reasons payoff plans break.

Even a small recurring extra payment can materially shorten your debt-free date when it is applied consistently.

Source notes

The calculator uses standard amortization logic and payoff ordering. For debt tracking and payoff planning basics, see the Consumer Financial Protection Bureau debt worksheet.

For the month-by-month model, see How We Calculate Debt Payoff.

Debt payoff FAQ

Should I pay off debt or build an emergency fund first?

Many people build a small starter emergency fund first, then attack high-interest debt. Without a cash buffer, one surprise expense can push new spending back onto credit cards.

Should I include my mortgage?

Usually no. This tool works best for credit cards, personal loans, car loans, student loans, and other debts with clear minimum payments. Mortgage payoff decisions need tax, liquidity, and housing assumptions.

How to become debt free faster

The fastest plan is usually the one that is specific, automatic, and reviewed every month. Use the calculator to pick one target debt, set an extra payment you can sustain, and check whether a small increase would meaningfully shorten your payoff date.