Finance Tools
Free Mortgage Calculator That Shows the Full Amortization Schedule
See exactly how much of every mortgage payment goes to interest vs principal, month by month, for the full loan term — free, no signup, exportable table.
- #amortization schedule
- #mortgage calculator
- #home loan
- #personal finance
A mortgage quote tells you the monthly payment. It doesn't tell you the thing that actually matters for planning: how that payment splits between interest and principal over time, and how slowly (or quickly) you actually build equity. That breakdown is called an amortization schedule, and every lender has one for your loan — they just don't hand it to you unprompted.
Here's how to get the full schedule for free, what the columns mean, and why the shape of the curve matters more than most buyers realize.
What an amortization schedule actually shows
An amortization schedule is a table with one row per payment (360 rows for a 30-year monthly mortgage) and four columns:
- Payment number / date
- Principal paid that month
- Interest paid that month
- Remaining balance after that payment
The payment amount itself stays fixed for the life of a fixed-rate loan. What changes, every single month, is the split between principal and interest.
Get your schedule free, no signup
- Open the Mortgage Calculator.
- Enter home price, down payment, interest rate, and loan term.
- The calculator generates monthly payment, PITI (principal, interest, taxes, insurance), and the complete amortization schedule.
- Click "Show schedule," toggle between a yearly or full monthly view, and scroll to any point in the loan — or export the whole monthly schedule as a CSV to check a specific month or paste into your own spreadsheet.
No account, no email gate, no limit on how many scenarios you run.
Why the early years look so lopsided
Here's the part that surprises most first-time buyers: in the early years of a 30-year mortgage, roughly 70% of each payment goes to interest, not principal. A $2,200 monthly payment in year one might only reduce your loan balance by $600–700.
This isn't a trick — it's math. Interest is charged on the remaining balance, which is largest at the start of the loan. As the balance shrinks, less of each payment is eaten by interest and more goes to principal. By the final years of the loan, that ratio flips — most of the payment is principal.
Example — $350,000 loan, 30 years, 6.5%:
| Year | Principal paid (that year) | Interest paid (that year) | Remaining balance | | --- | --- | --- | --- | | 1 | ~$4,700 | ~$22,600 | ~$345,300 | | 5 | ~$6,300 | ~$21,000 | ~$322,500 | | 15 | ~$12,300 | ~$15,000 | ~$236,800 | | 30 | ~$22,600 | ~$700 | $0 |
The full schedule shows this shift happening one month at a time instead of these snapshot years — which is what makes it useful for deciding when extra payments or refinancing actually pay off.
Why the schedule matters more than the monthly payment
It shows the true cost of a longer term. A 30-year loan and a 40-year loan on the same amount can have monthly payments only $150–200 apart — but the schedule reveals the 40-year loan pays tens of thousands more in total interest, because so much more time is spent in the high-interest-ratio early years.
It tells you when extra payments help most. Because early payments are interest-heavy, extra principal paid in year 1 saves far more long-run interest than the same extra payment made in year 25 — the schedule lets you see exactly how much.
It answers "what do I owe if I sell in 5 years?" Real estate isn't always a 30-year hold. The remaining-balance column at any given month tells you your exact payoff amount if you sell or refinance before the loan matures.
It exposes PMI drop-off. If you put down less than 20%, the schedule (combined with your home's value) shows roughly when your balance falls below the 80% loan-to-value threshold where PMI can be removed.
Reading your own schedule: what to check first
- Total interest paid (usually summarized at the bottom) — compare this across term lengths before choosing 15 vs 30 years.
- Balance at year 5 and year 10 — useful if you expect to move or refinance within a decade.
- The crossover point — the month where principal paid finally exceeds interest paid. On a 30-year loan at 6.5%, that's typically not until roughly year 18–20.
Frequently asked questions
What's the difference between amortization and the monthly payment? The monthly payment is a single fixed number. The amortization schedule breaks that same payment down month by month into how much goes to interest vs. principal, plus your running balance — the detail the payment figure alone doesn't show.
Does a 15-year mortgage really save that much interest? Yes, often more than half compared to a 30-year loan at the same rate, because the loan spends far less time in the interest-heavy early years. The trade-off is a higher monthly payment.
Can I see the schedule for an adjustable-rate mortgage (ARM)? The calculator models fixed-rate schedules directly. For an ARM, run the schedule for each rate period separately using the rate that applies during that window.
Does extra principal actually shorten my loan? Yes — extra principal paid reduces the balance that future interest is calculated on, which shortens the payoff timeline and cuts total interest, as long as your loan doesn't carry a prepayment penalty.
Is this calculator free to use fully, including the schedule? Yes — the full amortization table is included with no paywall, signup, or row limit.
See your own amortization schedule
Stop guessing how your payment splits between principal and interest. Open the free Mortgage Calculator, enter your numbers, and see the complete month-by-month schedule instantly — no signup required.
DEV-IN-ARTICLE · fluidWritten by
UtilityApps Team
We build free utility tools and write about the math, science, and trade-offs behind them. Got feedback or a tool request? Get in touch.
Related articles
More from the blogGet weekly tool recommendations
One short email each Friday: the tools that saved us time this week, plus a short tip you can use the next morning.
By subscribing you agree to our Privacy Policy. We never share your email and you can unsubscribe in one click. GDPR compliant.
DEV-BOTTOM · horizontal