ProMoney · Simulator
Mortgage Payoff Simulator
See how extra payments crush a mortgage.
Assumptions
Payoff time
21.9 yr
Total interest
$307,249
Months saved
97
| Year | Interest | Balance |
|---|---|---|
| Year 1 | $22,530 | $342,530 |
| Year 2 | $22,030 | $334,560 |
| Year 3 | $21,496 | $326,056 |
| Year 4 | $20,926 | $316,982 |
| Year 5 | $20,319 | $307,301 |
| Year 6 | $19,670 | $296,972 |
| Year 7 | $18,979 | $285,950 |
| Year 8 | $18,241 | $274,191 |
| Year 9 | $17,453 | $261,644 |
| Year 10 | $16,613 | $248,256 |
| Year 11 | $15,716 | $233,973 |
| Year 12 | $14,759 | $218,732 |
| Year 13 | $13,739 | $202,471 |
| Year 14 | $12,650 | $185,121 |
| Year 15 | $11,488 | $166,608 |
| Year 16 | $10,248 | $146,856 |
| Year 17 | $8,925 | $125,782 |
| Year 18 | $7,514 | $103,295 |
| Year 19 | $6,008 | $79,303 |
| Year 20 | $4,401 | $53,704 |
| Year 21 | $2,687 | $26,391 |
| Year 22 | $859 | $0 |
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Built by The Crimson Bench · Educational model, not financial advice
About the Mortgage Payoff Simulator
Enter your mortgage plus an extra monthly payment to see how many years and how much interest you save.
It's built for directional planning: change any assumption and watch the whole projection move, the way a seasoned operator pressure-tests a plan before committing capital. Everything is computed live in your browser — nothing is sent anywhere.
How the Mortgage Payoff Simulator Works
The model takes 4 assumptions and returns 3 headline metrics plus a full breakdown. Here is exactly what goes in and what comes out — no black box.
The Inputs
| Assumption | Example value |
|---|---|
| Loan balance | $350,000 |
| Interest rate | 6.5% |
| Monthly payment (P&I) | $2,200 |
| Extra payment / month | $300 |
Worked Example
Every figure below is produced by the live model using the example assumptions above. Change any input in the simulator to see your own numbers.
Payoff time
21.9 yr
Total interest
$307,249
Months saved
97
| Year | Interest | Balance |
|---|---|---|
| Year 1 | $22,530 | $342,530 |
| Year 2 | $22,030 | $334,560 |
| Year 3 | $21,496 | $326,056 |
| Year 4 | $20,926 | $316,982 |
| Year 5 | $20,319 | $307,301 |
| Year 6 | $19,670 | $296,972 |
The Operator's Read
An extra $300/month pays the loan off in about 21.9 years. Extra principal early is astonishingly powerful — it skips all the future interest that dollar would have carried.
Assumptions & Limitations
- •The model is deterministic: it projects your inputs forward with clear arithmetic, not a Monte-Carlo or probabilistic forecast. It shows one scenario at a time — run several to bracket a range.
- •Defaults are illustrative benchmarks, not your business. Replace every field with your real numbers before drawing conclusions.
- •It abstracts away taxes, financing, seasonality, and one-off events unless a field explicitly captures them. Treat the output as a directional estimate.
- •This is an educational tool, not financial, investment, tax, or legal advice. Validate real decisions with a qualified professional.
Frequently Asked Questions
What does the Mortgage Payoff Simulator calculate?
Enter your mortgage plus an extra monthly payment to see how many years and how much interest you save. It takes 4 assumptions — Loan balance, Interest rate, Monthly payment (P&I), Extra payment / month — and returns Payoff time, Total interest, Months saved, along with a full projection table you can export.
How do I use the Mortgage Payoff Simulator?
Enter your own figures in the input fields above — Loan balance, Interest rate, Monthly payment (P&I), and the rest. The model recalculates instantly and shows the resulting Payoff time and full breakdown. No sign-up needed to run it.
Is the Mortgage Payoff Simulator free?
Yes — you can run the simulator and see the headline results for free. Toolkit Pro unlocks the full projection table, Excel/PDF export, saved scenarios, and AI analysis: $180/mo, $1,728/yr, or unlock any 3 simulators for $20.
What's the difference between this and a free calculator?
A calculator answers one question. This simulator models the full picture — multiple linked assumptions, a projection table, and scenario comparison — the way an operator would build it in a spreadsheet, but instantly.
Who built the Mortgage Payoff Simulator?
The Crimson Bench's Ivy League-educated operators — the same people we deploy into C-suites. This is the self-serve version of a model they'd build inside a live engagement.
Is this financial advice?
No. The Mortgage Payoff Simulator is an educational modeling tool for directional planning — not financial, investment, tax, or legal advice. Validate any real decision with a qualified professional.
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The Crimson Bench · Est. 2002 · Founded in New York City
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