Debt Snowball & Avalanche Payoff Planner Spreadsheet

See the exact month you'll be debt-free. Enter your debts once and this planner builds two complete month-by-month payoff plans, snowball and avalanche, so you can see which one gets you there faster and which saves more interest.

What'S Inside (6 Tabs)

• Start Here: setup steps and a colour key.
• Dashboard: your debt-free date, months to go, total interest, how much the avalanche method saves, progress paid off so far, and charts for balance over time, what your debt really costs and when each debt is gone.
• Debts: up to 10 debts with balance, interest rate and minimum payment. Set your monthly amount and pick a plan. A check column flags any minimum that doesn't cover the interest.
• Snowball Plan: smallest balance first. The exact payment and balance for every debt, every month, for up to 25 years.
• Avalanche Plan: highest rate first, same detail.
• Payment Log: record what you actually pay; totals show per debt.

How The Plans Work

Each month every debt gets its minimum. Everything left over goes to one target debt. When a debt is paid off, its payment rolls into the next one, so your monthly total stays the same and the payoff speeds up.

Who It'S For

Anyone paying off credit cards, student loans, car loans, medical bills or personal loans who wants a clear plan and a date to aim for.

How To Use It

• Excel: open the .xlsx file (Excel 2010 or newer, Windows or Mac).
• Google Sheets: upload the .xlsx to Google Drive, open it, then choose File > Save as Google Sheets.
• Start on the "Start Here" tab. Pale amber cells are where you type; grey cells calculate automatically.
• Example data is included so you can see every chart working. Select it and press Delete when you're ready.

Good To Know

• This is a digital download. Nothing physical ships.
• No macros, add-ins or scripts. Formulas use standard functions that work in both Excel and Google Sheets.
• Every tab is set up to print on Letter or A4.
• Personal use, or use within your own business. Please don't resell or share the file.

Interest is calculated monthly (APR divided by 12), so dates are close estimates. A planning tool, not financial advice.