Amortization schedule with extra payments

Loan amount

010 million

Loan term

150 years

Interest rate

Calculation mode

Enter the amount, term, and rate to calculate the monthly payment

Payment type

This calculation is an estimate, not a loan offer. Verify fees, insurance, and the disclosed APR in your lender agreement.

Extra payments

One-off or recurring extra principal. The variant you pick drives the table, the payment breakdown, the yearly totals, and the exports, and what you enter here survives a change of the loan terms.

One-time extra payments

Recurring extra payments

Payment after extra: $2,212
Interest saved: $1,111
Term, months: 360
Months saved: 0
Payoff date: 9/1/2056

Compare extra-payment strategies

Monthly payment

$2,212.24

Loan summary

Loan principal

$350,000

Term

360 months

≈ 30 years

Total payments

$795,295

Total interest

$445,295

Cost above principal

$445,295

127.2% of principal

Estimated borrowing cost per year

6.69%

Based on payment timing and the fees you entered

With a 25-year term

−$87,438

less interest, payment $2,363

Uses the loan funding date and each scheduled payment date. Includes the amount received after upfront fees and all later payments. This estimate may differ from the APR disclosed by your lender. Methodology and limitations.

Download the calculation and schedule

Plan extra paymentsAmount, rate, term, currency, and schedule settings will carry over

Monthly payment$2,212

See results ↓

Loan breakdownSee how your balance changes and how each payment is split among principal, interest, and fees.

Take the schedule with you

The full month-by-month table: interest, principal, fees, and the remaining balance on every payment.

Payment schedule(360 payments)

Swipe the table left or right to see every column.

#	Date	Payment	Principal	Interest	Fees	Balance
1	Oct 1, 2026	$2,212.24	$316.4	$1,895.83	—	$349,683.6
2	Nov 1, 2026	$2,212.24	$318.12	$1,894.12	—	$349,365.48
3	Dec 1, 2026	$2,212.24	$319.84	$1,892.4	—	$349,045.63
4	Jan 1, 2027	$2,212.24	$321.57	$1,890.66	—	$348,724.06
5	Feb 1, 2027	$2,212.24	$323.32	$1,888.92	—	$348,400.74
6	Mar 1, 2027	$2,212.24	$325.07	$1,887.17	—	$348,075.68
7	Apr 1, 2027	$2,212.24	$326.83	$1,885.41	—	$347,748.85
8	May 1, 2027	$2,212.24	$328.6	$1,883.64	—	$347,420.25
9	Jun 1, 2027	$2,212.24	$330.38	$1,881.86	—	$347,089.87
10	Jul 1, 2027	$2,212.24	$332.17	$1,880.07	—	$346,757.7
11	Aug 1, 2027	$2,212.24	$333.97	$1,878.27	—	$346,423.74
12	Sep 1, 2027	$2,412.24	$535.78	$1,876.46	—	$345,887.96
13	Oct 1, 2027	$2,212.24	$338.68	$1,873.56	—	$345,549.28
14	Nov 1, 2027	$2,212.24	$340.51	$1,871.73	—	$345,208.77
15	Dec 1, 2027	$2,212.24	$342.36	$1,869.88	—	$344,866.41
16	Jan 1, 2028	$2,212.24	$344.21	$1,868.03	—	$344,522.2
17	Feb 1, 2028	$2,212.24	$346.08	$1,866.16	—	$344,176.12
18	Mar 1, 2028	$2,212.24	$347.95	$1,864.29	—	$343,828.17
19	Apr 1, 2028	$2,212.24	$349.84	$1,862.4	—	$343,478.34
20	May 1, 2028	$2,212.24	$351.73	$1,860.51	—	$343,126.61
21	Jun 1, 2028	$2,212.24	$353.64	$1,858.6	—	$342,772.97
22	Jul 1, 2028	$2,212.24	$355.55	$1,856.69	—	$342,417.42
23	Aug 1, 2028	$2,212.24	$357.48	$1,854.76	—	$342,059.94
24	Sep 1, 2028	$2,212.24	$359.41	$1,852.82	—	$341,700.53

Worked example: $350,000 over 30 years at 6.5%

The page opens with a $350,000 loan at 6.5% for 30 years and a single $200 extra payment in month 12. Because one payment of $200 barely moves a loan this size, the example below compares the same loan without any extra payment against $200 every month from payment 12, starting in January 2026.

Example dates start from January 2026. The calculator form above starts from the current month: the amounts do not change, only the payment dates shift.

Without extra payments

Payment: 2,212 $
Total interest: 446,406 $
Total paid: 796,406 $
Term: 360 months

With 200 $ extra every month from payment 12, shortening the term

Payment: 2,212 $
Total interest: 346,199 $
Total paid: 696,199 $
Term: 290 months

What the extra payment changes

Interest saved: 100,206 $
Term shorter by: 70 months · Loan paid off February 2050
Payment if you lower it instead: 705 $ (2,212 $)

Without the extra payment, principal would overtake interest only from payment 233.

Remaining balance (without the extra payment)

Balance after 5 years: 327,638 $
Balance after 10 years: 296,716 $
Balance after 15 years: 253,957 $

How it is calculated

Every row is the same annuity calculation: interest on the current balance, and the remainder reduces principal. The extra payment is applied to principal in the month you choose and the schedule is rebuilt from there.

What the estimate leaves out

No insurance, fees, rate changes or lender rounding. Payoff dates depend on the posting day the lender uses, so treat the date as an estimate.

These figures come from the same model as the calculator above — enter them and compare.

Frequently asked questions

How are extra payments applied?

Each extra payment is applied to principal on the date you choose, and the schedule is rebuilt from that point.

Does this match my lender's schedule?

It is an independent estimate. Lenders use their own posting dates, daily accrual, and rounding rules.

Can I add more than one extra payment?

Yes. Add one-time or recurring extra payments and compare the interest saved and the new payoff date.

Do extra payments always shorten the term?

Only if you keep paying the same amount and shorten the term. If you lower the payment instead, the benefit spreads over the remaining months.

How little does a single extra payment change?

A one-off $200 on a $350,000 loan saves about $1,111 and leaves the term untouched; paying $200 every month from payment 12 saves about $100,206 and ends the loan 70 payments earlier.