Debt Snowball Payoff Calculator
See exactly when you'll be debt-free using the snowball method. Enter up to 5 debts, add an extra monthly payment, and get your step-by-step payoff order, interest saved, and months cut vs. minimums-only.
See step-by-step calculation
When to use this calculator
- Mapping a step-by-step payoff plan for credit card debt
- Deciding how much extra cash to throw at debt each month
- Comparing snowball interest cost vs. paying minimums forever
- Motivating debt payoff by seeing quick early wins
- Planning to be debt-free before a major life event
- Evaluating whether a side-hustle income boost is worth it
Debt Snowball vs. Minimums Only — Impact of Extra Monthly Payment ($8,300 debt load, avg 20% APR)
| Extra Payment/Month | Total Months to Payoff | Total Interest Paid | Interest Saved vs. Minimums Only |
|---|---|---|---|
| $0 (minimums only) | ~78 months | ~$5,800 | — |
| $50/month | ~52 months | ~$3,900 | ~$1,900 |
| $100/month | ~38 months | ~$2,700 | ~$3,100 |
| $200/month | ~26 months | ~$1,800 | ~$4,000 |
| $500/month | ~16 months | ~$900 | ~$4,900 |
Fuente: Valores ilustrativos del contenido de esta calculadora, basados en metodología de amortización estándar (APR / 12). CFPB — Consumer Financial Protection Bureau (2026)
How it works
What is the Debt Snowball Method?
The debt snowball is a repayment strategy where you pay minimum amounts on all debts while directing extra money to the smallest balance first. Once that debt is eliminated, you apply its full payment to the next-smallest debt, creating momentum — like a snowball rolling downhill and picking up speed.
This calculator simulates your exact payoff path month by month, compares it against paying minimums only, and shows you the total interest cost and time difference.
How the Snowball Works — Step by Step
1. List all debts from smallest balance to largest (ignore interest rates).
2. Pay minimums on every debt except the smallest.
3. Attack the smallest with every extra dollar you can find.
4. Roll the freed payment onto the next debt once the smallest hits zero.
5. Repeat until every debt is gone.
Monthly interest formula:
monthly_rate = APR / 100 / 12
interest_charge = balance × monthly_rate
new_balance = balance + interest_charge − payment_appliedSnowball vs. Avalanche: Which Saves More?
| Strategy | How it Ranks Debts | Typical Interest Savings | Completion Rate |
|---|---|---|---|
| Snowball | Smallest balance first | Good (motivation wins) | Higher |
| Avalanche | Highest APR first | Best (mathematically optimal) | Lower |
| Minimums Only | No extra payments | Zero | Slowest |
Research from Kellogg School of Management found that people who use the snowball method are more likely to eliminate all their debt — because early wins build the habit and confidence to keep going.
Worked Example: 3 Debts, $100 Extra/Month
| Debt | Balance | APR | Min Payment | Snowball Order |
|---|---|---|---|---|
| Store card | $800 | 0% | $50 | 1st — attack this |
| Personal loan | $2,500 | 18.99% | $60 | 2nd |
| Credit card | $5,000 | 22.99% | $100 | 3rd |
Total monthly budget: $310 (minimums $210 + $100 extra).
| Scenario | Months | Total Interest |
|---|---|---|
| Snowball + $100 extra | ~32 months | ~$2,100 |
| Minimums only | ~78 months | ~$5,800 |
| Saved | ~46 months | ~$3,700 |
How Much Extra Payment Makes a Difference?
| Extra/Month | Total Months (on $8,300 load, avg 20% APR) | Interest Paid | Interest Saved vs. $0 extra |
|---|---|---|---|
| $0 (minimums only) | ~78 months | ~$5,800 | — |
| $50/month | ~52 months | ~$3,900 | ~$1,900 |
| $100/month | ~38 months | ~$2,700 | ~$3,100 |
| $200/month | ~26 months | ~$1,800 | ~$4,000 |
| $500/month | ~16 months | ~$900 | ~$4,900 |
Even $50 extra per month trims nearly 2 years and almost $2,000 in interest off a typical debt load.
Limitations
Frequently asked questions
What is the debt snowball method?
Snowball vs. avalanche: which saves more money?
How much extra should I pay each month to make the snowball effective?
What if I can't afford more than the minimum payments?
Does the order I enter debts matter?
What APR should I enter for a 0% promotional balance?
Why does minimums-only payoff show a very large number or never?
Should I include my mortgage in the snowball?
Can I use this for student loans or car loans?
How is total interest calculated in this snowball calculator?
Sources & references
- Consumer Financial Protection Bureau — Paying Off Credit Card Debt — CFPB (2026)
- Federal Reserve — Consumer Credit (G.19 Statistical Release) — Federal Reserve (2026)
- FDIC Consumer News — Getting Out of Debt — FDIC (2026)
- Kellogg School of Management — Winning the Battle Against Debt (Snowball Research) — Northwestern University (2012)
Methodology & trust
Calculadora de finanzas revisada por el equipo editorial de Hacé Cuentas, contrastada con Consumer Financial Protection Bureau — Paying Off Credit Card Debt, según nuestra política editorial y metodología.
Última revisión: June 20, 2026. Los parámetros se verifican periódicamente con las fuentes citadas.
Calculations run 100% in your browser. We do not store or transmit your data.
Indicative results. For critical decisions, consult a professional.
Rodríguez, M. (2026). Debt Snowball Payoff Calculator. Hacé Cuentas. https://hacecuentas.com/debt-snowball-payoff-calculator
Contenido bajo licencia CC-BY 4.0 — reutilizable citando la fuente con enlace a Hacé Cuentas.