Excel templates, free to keep.

Every template is a plain .xlsx with live formulas — change the green input cells and everything recalculates. No signup, no email gate, no macros. They work in Excel, Google Sheets and LibreOffice.

Mortgage amortization

Full month-by-month schedule with taxes, insurance and HOA, plus payment summary.

.xlsx · formulas included · no macros

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Loan amortization

Any fixed-rate loan: payment, total interest, and the complete payoff schedule.

.xlsx · formulas included · no macros

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Compound interest

Starting balance plus monthly contributions, projected year by year for up to 50 years.

.xlsx · formulas included · no macros

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Debt payoff planner

Month-by-month payoff with an extra-payment column so you can see the savings.

.xlsx · formulas included · no macros

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Savings goal planner

Solves the monthly deposit for a target amount and date, with a progress table.

.xlsx · formulas included · no macros

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Monthly budget planner

Planned vs. actual across income and 20+ expense lines, with automatic differences.

.xlsx · formulas included · no macros

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Why free? The web calculators are ad-supported, and the templates make them more useful — that's the whole business model. The files carry no branding hooks, no hidden links, and no macros; open them with confidence, or inspect them first (an .xlsx is just a zip of XML).