Debt Snowball Calculator
Add your debts below. We sort them smallest-to-largest, apply your extra payment as a snowball, and show your debt-free date.
Your Debts
| Name | Balance ($) | APR (%) | Min. Payment ($) |
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Must be at least the sum of all minimums.
Debt-Free In
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Total Interest
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Total Paid
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Frequently Asked Questions
The debt snowball method focuses extra payments on the debt with the smallest balance first, regardless of interest rate, while making minimum payments on all others. Once the smallest debt is eliminated, its payment rolls to the next smallest, creating a growing momentum effect. It was popularised as a behaviour-based debt payoff strategy.
The snowball targets the smallest balance first; the avalanche targets the highest interest rate first. The avalanche always saves more total interest. The snowball provides quicker wins that can boost motivation and help you stay committed. Research suggests that for many people, the psychological benefits of the snowball outweigh its slightly higher total cost.
Pay as much as you can above the minimum on your smallest debt. Even an extra 50-100 dollars per month accelerates payoff substantially. Use this calculator to see how different extra payment amounts affect your total payoff timeline. Any windfall such as a tax refund, bonus, or overtime pay should go directly to the target debt.
Most US debt experts recommend excluding your mortgage from the initial snowball and focusing on consumer debts first (credit cards, personal loans, car loans, student loans). Once all consumer debts are eliminated, your freed-up monthly cash flow can then be directed to extra mortgage payments or investments depending on your interest rate and financial goals.
The NFCC (National Foundation for Credit Counseling) offers coaching and Debt Management Plans. Online communities such as the personal finance and debt-free subreddits provide peer support. The Baby Steps framework has free resources and podcast content to keep you motivated throughout the process.
The debt snowball focuses extra repayments on the smallest balance first while paying minimums on all other debts. Once the smallest debt is cleared, that payment transfers to the next smallest. The method builds momentum and motivation, and is recommended by some UK debt advisers for its psychological effectiveness.
The avalanche (highest rate first) saves more interest; the snowball (smallest balance first) delivers quicker wins. For UK borrowers with multiple debts at similar rates, the difference in total cost is small and motivation may be the deciding factor. If you have one very high-rate debt (such as a 39% overdraft), tackling it first makes financial sense regardless of balance size.
Pay as much as you can afford above the minimum. Even an extra 30-50 pounds per month on a small debt can clear it in months rather than years. Use this calculator with different extra payment amounts to see the impact. Any unexpected income such as a bonus, tax rebate, or compensation payment should go straight to the target debt.
Most UK debt advisers recommend tackling unsecured consumer debts (credit cards, personal loans, car finance, buy-now-pay-later) before addressing the mortgage, as these typically carry higher rates and have no asset backing them. Once unsecured debts are cleared, you can direct the freed payments to mortgage overpayments (usually up to 10% per year without penalty on fixed deals).
StepChange Debt Charity offers free online debt advice and Debt Management Plans. MoneySavingExpert has a debt-free community forum where thousands of UK residents share their progress. MoneyHelper has free guides and online tools. Setting milestones and celebrating each debt payoff keeps you committed throughout the journey.
The debt snowball focuses extra repayments on the smallest-balance debt first while making minimum payments on all others. Once the smallest is gone, that payment rolls to the next. ASIC Moneysmart describes this as an effective motivational strategy, particularly for those who need early wins to stay committed to debt elimination.
The avalanche (highest rate first) is mathematically superior and saves more interest. The snowball (smallest balance first) provides quicker wins. For many Australians, especially those managing credit card debt at similar rates across multiple cards, the motivational benefit of clearing a card entirely can justify the snowball approach.
Put as much as possible above the minimum toward your target debt. Even an extra 100-200 dollars per month makes a significant difference to repayment time. Use this calculator to model different extra payment amounts. Tax refunds, bonus payments, and any irregular income should go directly to the target debt.
Most Australian financial planners recommend excluding the mortgage from the consumer debt snowball initially. Focus on credit cards, personal loans, car loans, and buy-now-pay-later balances first. Once these are cleared, the extra cash flow can be directed to additional mortgage repayments, reducing your interest expense on the typically much larger home loan.
The National Debt Helpline (1800 007 007) provides free financial counselling. ASIC Moneysmart has debt calculators and guides. Barefoot Investor-inspired communities online offer peer support and practical advice. Your bank may also offer a hardship arrangement if repayments are unmanageable, which can free up cash flow to accelerate debt elimination.
The debt snowball focuses all extra repayment money on the debt with the smallest balance first while paying minimums on all others. Once cleared, that payment rolls to the next smallest. The Financial Consumer Agency of Canada (FCAC) recognises that consistent motivation is essential for debt payoff success, and the snowball method excels in this respect.
The avalanche (highest rate first) saves more total interest. The snowball (smallest balance first) eliminates debts faster in terms of number, providing motivational wins. For Canadian borrowers with credit cards all at the same 19.99% rate, the method that keeps you most consistent is more important than the theoretical optimum.
Pay as much above the minimum as your budget allows. Even 50-100 dollars per month extra on a small balance can eliminate it in months. Use this calculator to test different amounts. Direct any tax refund, CERB repayment windfall, or bonus to the target debt immediately for the biggest acceleration.
Most Canadian financial advisers recommend clearing consumer debts (credit cards, lines of credit, car loans, student loans) before redirecting to the mortgage. Once consumer debts are gone, the freed payments can be applied as lump-sum or increased regular mortgage payments within your prepayment privileges (typically 10-20% of the original balance annually).
Credit Counselling Canada member agencies offer free counselling and Debt Management Plans. The FCAC budget planner helps you identify extra money for payments. Online personal finance communities provide Canadian-specific support and success stories. If debt is unmanageable, a Licensed Insolvency Trustee (LIT) can outline all available options including Consumer Proposals.