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: 7.40% for 30-year, 6.71% for 15-year (updated Oct 2026). Your rate depends on credit and lender. Freddie Mac PMMS
Estimated monthly payment
$2,732/mo
Principal
$2429%
Interest
$1,97372%
Property tax
$36713%
Home insurance
$1505%
Loan amount
$320,000
Total interest
$477,622
Total cost
$983,622
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 21, 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$1,476$11,817$318,524
2027$3,121$23,466$315,403
2028$3,360$23,227$312,043
2029$3,617$22,970$308,425
2030$3,894$22,693$304,531
2031$4,192$22,395$300,339
2032$4,513$22,074$295,825
2033$4,859$21,728$290,966
2034$5,231$21,356$285,736
2035$5,631$20,956$280,104
2036$6,063$20,525$274,042
2037$6,527$20,061$267,515
2038$7,026$19,561$260,488
2039$7,564$19,023$252,924
2040$8,144$18,444$244,780
2041$8,767$17,820$236,013
2042$9,438$17,149$226,575
2043$10,161$16,427$216,414
2044$10,939$15,649$205,476
2045$11,776$14,811$193,699
2046$12,678$13,909$181,021
2047$13,649$12,939$167,373
2048$14,694$11,894$152,679
2049$15,818$10,769$136,861
2050$17,030$9,558$119,831
2051$18,333$8,254$101,498
2052$19,737$6,850$81,761
2053$21,248$5,339$60,513
2054$22,875$3,712$37,638
2055$24,626$1,961$13,011
2056$13,011$282$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 October 2026
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