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What do extra mortgage payments actually save?

Small extra principal payments compound into absurd savings: at typical rates, a couple hundred a month can erase six figures of interest and finish your mortgage years early. This tool shows your exact numbers — interest with and without, and how much sooner you're done. Two footnotes from the pros: tell your servicer extras go to principal, and fund your emergency savings and high-interest debt first; the mortgage is usually your cheapest debt.

Extra payment impact

What a little extra principal every month does to a mortgage. Spoiler: it's the most boring wealth hack in existence.

The payoff
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Interest without extra payments—
Interest with extra payments—
Paid off sooner by—

Make sure extra payments are applied to principal (tell your servicer). And fund your emergency savings and any high-interest debt first — the mortgage is usually your cheapest debt.

Educational estimate, not a loan offer or financial advice. Rates, taxes, and program rules vary — a licensed professional can turn these ranges into real numbers for your situation.

Want a human to look at your numbers? BuyerMath is built by Gavin Guthrie of The Mortgage Collective — a free 15-minute "where do I stand?" call costs nothing and isn't a test you can fail.

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