What does amortization mean?

Spreading loan repayment into level payments where early payments are mostly interest and later payments are mostly principal, so the balance reaches zero exactly at the end of the term.

Why is my first payment almost all interest?

Interest each month equals the balance times the monthly rate. With a large starting balance, that interest consumes most of a fixed payment.

How do extra payments change the schedule?

Extras go straight to principal, which reduces all future interest and shortens the payoff date. The effect compounds — the earlier the extra, the bigger the saving.

Mortgage Amortization Calculator

See exactly how your mortgage amortizes: the monthly payment, how much of each payment goes to interest versus principal, how fast the balance falls, and the payoff date. Include taxes, insurance, PMI and HOA for total out-of-pocket costs, and test extra payments.

#amortization#amortization schedule#mortgage breakdown#principal vs interest#loan schedule

Live calculate

Presets

Home Price

Down Payment

Loan Term

years

Interest Rate

Extra Payment

$/month

Include Optionals Below

Property Taxes

% / year

Home Insurance

$/year

PMI Insurance

$/year

HOA Fee

$/year

Other Costs

$/year

First Payment Date

Live mode: results update as you type.

Monthly Mortgage Payment (P&I)

$2,605.57

$1,125.00 taxes & costs → $3,730.57 total out-of-pocket

House Price: $500,000
Down Payment: $100,000 (20.0%)
Loan Amount: $400,000
Total of 360 Payments: $938,005
Total Interest: $538,005
Property Tax: $500.00
Home Insurance: $208.33
Total Out-of-Pocket / mo: $3,730.57
Interest Share of First Payment: 86.9%
Payoff Date: November 8, 2056

Monthly out-of-pocket breakdown

Mortgage P&I$2,606
Property Tax$500
Insurance$208
Other Costs$417

Amortization schedule (annual)

Year	Beginning Balance	Total Paid	Principal	Interest	Ending Balance
Year 1	$400,000.00	$31,266.83	$4,228.87	$27,037.97	$395,771.13
Year 2	$395,771.13	$31,266.83	$4,525.21	$26,741.63	$391,245.92
Year 3	$391,245.92	$31,266.83	$4,842.31	$26,424.53	$386,403.61
Year 4	$386,403.61	$31,266.83	$5,181.63	$26,085.20	$381,221.98
Year 5	$381,221.98	$31,266.83	$5,544.73	$25,722.10	$375,677.25
Year 6	$375,677.25	$31,266.83	$5,933.28	$25,333.55	$369,743.97
Year 7	$369,743.97	$31,266.83	$6,349.05	$24,917.78	$363,394.91
Year 8	$363,394.91	$31,266.83	$6,793.96	$24,472.87	$356,600.95
Year 9	$356,600.95	$31,266.83	$7,270.05	$23,996.79	$349,330.90
Year 10	$349,330.90	$31,266.83	$7,779.49	$23,487.34	$341,551.41
Year 11	$341,551.41	$31,266.83	$8,324.64	$22,942.19	$333,226.77
Year 12	$333,226.77	$31,266.83	$8,907.99	$22,358.85	$324,318.78
Year 13	$324,318.78	$31,266.83	$9,532.21	$21,734.62	$314,786.57
Year 14	$314,786.57	$31,266.83	$10,200.18	$21,066.66	$304,586.39
Year 15	$304,586.39	$31,266.83	$10,914.95	$20,351.88	$293,671.44
Year 16	$293,671.44	$31,266.83	$11,679.82	$19,587.02	$281,991.62
Year 17	$281,991.62	$31,266.83	$12,498.28	$18,768.56	$269,493.34
Year 18	$269,493.34	$31,266.83	$13,374.09	$17,892.74	$256,119.25
Year 19	$256,119.25	$31,266.83	$14,311.28	$16,955.56	$241,807.97
Year 20	$241,807.97	$31,266.83	$15,314.14	$15,952.70	$226,493.84
Year 21	$226,493.84	$31,266.83	$16,387.27	$14,879.56	$210,106.57
Year 22	$210,106.57	$31,266.83	$17,535.61	$13,731.23	$192,570.96
Year 23	$192,570.96	$31,266.83	$18,764.41	$12,502.43	$173,806.55
Year 24	$173,806.55	$31,266.83	$20,079.32	$11,187.52	$153,727.23
Year 25	$153,727.23	$31,266.83	$21,486.37	$9,780.46	$132,240.86
Year 26	$132,240.86	$31,266.83	$22,992.03	$8,274.81	$109,248.83
Year 27	$109,248.83	$31,266.83	$24,603.19	$6,663.65	$84,645.65
Year 28	$84,645.65	$31,266.83	$26,327.25	$4,939.59	$58,318.40
Year 29	$58,318.40	$31,266.83	$28,172.12	$3,094.71	$30,146.28
Year 30	$30,146.28	$31,266.83	$30,146.28	$1,120.56	$0.00

Amortization is front-loaded: on a 30-year loan the first payment can be 70–80% interest. Every extra dollar paid early cuts interest for the entire remaining term.

Most useful next

Formula

Payment = P·r(1+r)^n / ((1+r)^n − 1); Interest_m = Balance_m × r/12; Principal_m = Payment − Interest_m

Pro tips

• Round your payment up to the nearest $100 — small extras shave months off the term.
• PMI automatically cancels once you reach 20–22% equity on conventional loans; request removal at 20%.
• Compare a 15-year vs 30-year schedule: the 15-year typically cuts total interest by more than half.

FAQ

Related Calculators

More Finance tools you might need.

Mortgage Amortization Calculator

#amortization#amortization schedule#mortgage breakdown#principal vs interest#loan schedule

Year

Beginning Balance

Total Paid

Principal

Interest

Ending Balance

Year 1

$400,000.00

$31,266.83

$4,228.87

$27,037.97

$395,771.13

Year 2

$395,771.13

$31,266.83

$4,525.21

$26,741.63

$391,245.92

Year 3

$391,245.92

$31,266.83

$4,842.31

$26,424.53

$386,403.61

Year 4

$386,403.61

$31,266.83

$5,181.63

$26,085.20

$381,221.98

Year 5

$381,221.98

$31,266.83

$5,544.73

$25,722.10

$375,677.25

Year 6

$375,677.25

$31,266.83

$5,933.28

$25,333.55

$369,743.97

Year 7

$369,743.97

$31,266.83

$6,349.05

$24,917.78

$363,394.91

Year 8

$363,394.91

$31,266.83

$6,793.96

$24,472.87

$356,600.95

Year 9

$356,600.95

$31,266.83

$7,270.05

$23,996.79

$349,330.90

Year 10

$349,330.90

$31,266.83

$7,779.49

$23,487.34

$341,551.41

Year 11

$341,551.41

$31,266.83

$8,324.64

$22,942.19

$333,226.77

Year 12

$333,226.77

$31,266.83

$8,907.99

$22,358.85

$324,318.78

Year 13

$324,318.78

$31,266.83

$9,532.21

$21,734.62

$314,786.57

Year 14

$314,786.57

$31,266.83

$10,200.18

$21,066.66

$304,586.39

Year 15

$304,586.39

$31,266.83

$10,914.95

$20,351.88

$293,671.44

Year 16

$293,671.44

$31,266.83

$11,679.82

$19,587.02

$281,991.62

Year 17

$281,991.62

$31,266.83

$12,498.28

$18,768.56

$269,493.34

Year 18

$269,493.34

$31,266.83

$13,374.09

$17,892.74

$256,119.25

Year 19

$256,119.25

$31,266.83

$14,311.28

$16,955.56

$241,807.97

Year 20

$241,807.97

$31,266.83

$15,314.14

$15,952.70

$226,493.84

Year 21

$226,493.84

$31,266.83

$16,387.27

$14,879.56

$210,106.57

Year 22

$210,106.57

$31,266.83

$17,535.61

$13,731.23

$192,570.96

Year 23

$192,570.96

$31,266.83

$18,764.41

$12,502.43

$173,806.55

Year 24

$173,806.55

$31,266.83

$20,079.32

$11,187.52

$153,727.23

Year 25

$153,727.23

$31,266.83

$21,486.37

$9,780.46

$132,240.86

Year 26

$132,240.86

$31,266.83

$22,992.03

$8,274.81

$109,248.83

Year 27

$109,248.83

$31,266.83

$24,603.19

$6,663.65

$84,645.65

Year 28

$84,645.65

$31,266.83

$26,327.25

$4,939.59

$58,318.40

Year 29

$58,318.40

$31,266.83

$28,172.12

$3,094.71

$30,146.28

Year 30

$30,146.28

$31,266.83

$30,146.28

$1,120.56

$0.00

Mortgage Amortization Calculator

Monthly out-of-pocket breakdown

Amortization schedule (annual)

Formula

Pro tips

FAQ

Related Calculators

Mortgage Calculator

Amortization Calculator

Mortgage Payoff Calculator

Refinance Calculator

Mortgage Amortization Calculator

Monthly out-of-pocket breakdown

Amortization schedule (annual)

Formula

Pro tips

FAQ

Related Calculators

Mortgage Calculator

Amortization Calculator

Mortgage Payoff Calculator

Refinance Calculator