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: 6.66% for 30-year, 5.98% for 15-year (updated Aug 2026). Your rate depends on credit and lender. Freddie Mac PMMS
Estimated monthly payment
$2,573/mo
Principal
$28011%
Interest
$1,77669%
Property tax
$36714%
Home insurance
$1506%
Loan amount
$320,000
Total interest
$420,306
Total cost
$926,306
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$1,706$10,632$318,294
2027$3,587$21,090$314,707
2028$3,833$20,844$310,874
2029$4,096$20,581$306,778
2030$4,377$20,299$302,401
2031$4,678$19,999$297,723
2032$4,999$19,678$292,723
2033$5,343$19,334$287,381
2034$5,710$18,967$281,671
2035$6,102$18,575$275,570
2036$6,521$18,156$269,049
2037$6,968$17,709$262,081
2038$7,447$17,230$254,634
2039$7,958$16,719$246,676
2040$8,505$16,172$238,171
2041$9,089$15,588$229,082
2042$9,713$14,964$219,369
2043$10,380$14,297$208,989
2044$11,093$13,584$197,896
2045$11,854$12,822$186,042
2046$12,669$12,008$173,373
2047$13,539$11,138$159,835
2048$14,468$10,209$145,367
2049$15,462$9,215$129,905
2050$16,524$8,153$113,381
2051$17,658$7,019$95,723
2052$18,871$5,806$76,852
2053$20,167$4,510$56,685
2054$21,552$3,125$35,134
2055$23,032$1,645$12,102
2056$12,102$236$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 August 2026
How we calculate →