Mortgage
Mortgage Amortization Calculator
See a full year-by-year amortization schedule showing how each mortgage payment splits between principal and interest.
Enter your loan amount, rate, and term to build a complete amortization table and watch how the principal share of every payment grows over time.
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Scenario presets
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Example
Early in a 30-year loan most of each payment is interest, but the principal share climbs steadily as the balance falls.
Results
Monthly payment
$2,251.82
Total interest
$450,656
Total of payments
$810,656
Projection
Trend view
Breakdown
Cost mix
Amortization scheduleYearly view
| Period | Avg payment | Principal paid | Interest paid | Ending balance |
|---|---|---|---|---|
| Year 1 | $2,252 | $4,101 | $22,921 | $355,899 |
| Year 2 | $2,252 | $4,371 | $22,651 | $351,528 |
| Year 3 | $2,252 | $4,659 | $22,363 | $346,869 |
| Year 4 | $2,252 | $4,966 | $22,056 | $341,903 |
| Year 5 | $2,252 | $5,294 | $21,728 | $336,609 |
| Year 6 | $2,252 | $5,642 | $21,379 | $330,967 |
| Year 7 | $2,252 | $6,014 | $21,007 | $324,952 |
| Year 8 | $2,252 | $6,411 | $20,611 | $318,542 |
| Year 9 | $2,252 | $6,833 | $20,189 | $311,708 |
| Year 10 | $2,252 | $7,284 | $19,738 | $304,425 |
| Year 11 | $2,252 | $7,764 | $19,258 | $296,661 |
| Year 12 | $2,252 | $8,276 | $18,746 | $288,385 |
| Year 13 | $2,252 | $8,821 | $18,201 | $279,564 |
| Year 14 | $2,252 | $9,402 | $17,619 | $270,162 |
| Year 15 | $2,252 | $10,022 | $17,000 | $260,140 |
| Year 16 | $2,252 | $10,683 | $16,339 | $249,457 |
| Year 17 | $2,252 | $11,387 | $15,635 | $238,070 |
| Year 18 | $2,252 | $12,137 | $14,885 | $225,933 |
| Year 19 | $2,252 | $12,937 | $14,085 | $212,996 |
| Year 20 | $2,252 | $13,790 | $13,232 | $199,206 |
| Year 21 | $2,252 | $14,699 | $12,323 | $184,507 |
| Year 22 | $2,252 | $15,668 | $11,354 | $168,839 |
| Year 23 | $2,252 | $16,700 | $10,321 | $152,139 |
| Year 24 | $2,252 | $17,801 | $9,221 | $134,338 |
| Year 25 | $2,252 | $18,974 | $8,047 | $115,364 |
| Year 26 | $2,252 | $20,225 | $6,797 | $95,139 |
| Year 27 | $2,252 | $21,558 | $5,464 | $73,581 |
| Year 28 | $2,252 | $22,979 | $4,043 | $50,602 |
| Year 29 | $2,252 | $24,494 | $2,528 | $26,108 |
| Year 30 | $2,252 | $26,108 | $914 | $0 |
Result reading
The visual trend is moving down, with an approximate change of -$355,899 across the period shown.
Planning cue
Use the output as a scenario test rather than a promise. Small input changes can materially change the result.
This schedule assumes a fixed rate and the same payment every month for the full term.
How it works
What the result is showing you
These sections explain what the calculator measures, which assumptions matter most, and where the number can be misleading.
What an amortization schedule shows
Amortization is the process of paying off a loan with fixed payments over time. Each payment covers the interest charged that month first, and whatever is left reduces the principal. The schedule below tracks that split year by year.
Why early payments feel slow
At the start the balance is large, so the interest portion of each payment is high and principal moves slowly. As the balance shrinks, less interest is charged and more of every payment attacks the principal, which is why payoff accelerates near the end.
Reading the schedule
Use the yearly table to see the ending balance, principal paid, and interest paid for each year. This is the clearest way to understand the true cost of the loan and the point where you finally cross the halfway mark on principal.
FAQ
Frequently asked questions
Quick answers to the questions people ask most about this calculator.
Why is so much of my early payment interest?
Interest is charged on the outstanding balance, which is highest at the start. As you pay the balance down, the interest portion shrinks and the principal portion grows automatically.
When does principal overtake interest in a payment?
For a typical 30-year loan near 6 to 7 percent, the principal portion usually passes the interest portion somewhere in the middle third of the loan, though the exact crossover depends on your rate and term.
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