Month-by-month breakdown

Amortization Calculator

Amortization is the schedule that turns one big loan into a fixed monthly payment. Early on, most of each payment is interest; over time the balance tips toward principal. This calculator builds the full table for your loan and marks the crossover point where equity starts winning.

Full scheduleCSV & print exportNo sign-up

Your numbers

Down payment
= $80,000 down
Loan term
This week's US averages: 6.49% for 30-year, 5.82% for 15-year (updated Jul 2026). Your rate depends on credit and lender. Freddie Mac PMMS
Estimated monthly payment
$2,537/mo
Principal
$29011%
Interest
$1,73168%
Property tax
$36714%
Home insurance
$1506%
Loan amount
$320,000
Total interest
$407,385
Total cost
$913,385
principal, interest & fees
Payoff
Jun 2056
30 yr
Over the life of the loan

Loan balance over time

$0$80K$160K$240K$320K5y10y15y20y25y30y
Crossover in year 20, the point where more of each payment builds equity than pays interest.

Nothing is saved or sent. The share link holds your numbers, in your browser only.

Full breakdown

Amortization schedule

Every payment, split into principal and interest. Export it or print a copy.

YearPrincipalInterestBalance
2026$1,763$10,360$318,237
2027$3,701$20,545$314,536
2028$3,949$20,297$310,587
2029$4,213$20,033$306,374
2030$4,495$19,752$301,879
2031$4,795$19,451$297,084
2032$5,116$19,130$291,968
2033$5,458$18,788$286,511
2034$5,823$18,423$280,688
2035$6,212$18,034$274,476
2036$6,628$17,619$267,848
2037$7,071$17,175$260,777
2038$7,543$16,703$253,234
2039$8,048$16,198$245,186
2040$8,586$15,660$236,600
2041$9,160$15,086$227,440
2042$9,773$14,474$217,667
2043$10,426$13,820$207,241
2044$11,123$13,123$196,118
2045$11,867$12,379$184,251
2046$12,660$11,586$171,591
2047$13,507$10,739$158,084
2048$14,410$9,836$143,674
2049$15,374$8,872$128,300
2050$16,402$7,844$111,898
2051$17,498$6,748$94,400
2052$18,668$5,578$75,731
2053$19,917$4,329$55,815
2054$21,248$2,998$34,566
2055$22,669$1,577$11,897
2056$11,897$226$0
How it works

The same payment, a shifting split

With a fixed-rate loan your payment never changes, but what it buys does. Interest is charged on the balance you still owe, so when the balance is large, the interest slice is large. Each month you chip a little off the principal, the next month's interest is slightly smaller, and a little more of your fixed payment goes to principal. That compounding shift is amortization.

The crossover point, where principal finally exceeds interest in a single payment, usually lands around the halfway mark on a 30-year loan at today's rates. The chart above marks it for your numbers.

Use the table

Read it by year or by month

Toggle the schedule between a yearly summary and every single payment. Export the full month-by-month version to CSV for a spreadsheet, or print a clean copy for your records. Nothing is uploaded, the file is generated in your browser.

Questions & answers

Frequently asked

Why is so much of my early payment interest?
Interest is charged on the outstanding balance, which is at its largest right after closing. As you pay the balance down, the interest portion of each payment shrinks and the principal portion grows.
What is the crossover point?
It is the first month where more of your payment goes to principal than to interest. On a 30-year loan at current rates it typically arrives somewhere around years 17 to 20, earlier if the rate is lower.
Can I download the schedule?
Yes. Use the CSV button for a spreadsheet-ready file, or Print for a PDF. Both are produced locally in your browser.
Do extra payments change the schedule?
Significantly. Any extra goes straight to principal, which shortens the schedule and cuts total interest. Add an amount under 'Pay it off faster' to see the new table.
MF
Marcus Fielding· Mortgage analyst & editor
Published June 2026 · Updated July 2026
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