Mortgage Amortization Calculator
See the complete month-by-month (or year-by-year) principal-and-interest payment schedule for your home loan, and how much an extra monthly payment could save you.
Results from this calculator are estimates provided for general informational purposes only, based on formulas, rates, and standards commonly accepted as of 2026. Figures may differ slightly from other calculators or professional sources due to rounding methods, differing assumptions, or regional regulations, and rules may change over time. Always consult a qualified professional — such as a financial advisor, healthcare provider, or other relevant specialist — before making decisions based on these results.
Principal & Interest Payment
$1,678.74
Example
On a $350,000 home with a $70,000 down payment (20.0%), you finance $280,000 at 6% over 30 years. The principal and interest payment is $1,678.74 per month, and total interest over the full term is $324,347.
Loan Amount
$280,000
Down Payment
$70,000 (20.0%)
Total Interest
$324,347
Total cost of the mortgage, split between principal and interest
- Principal: $280,000
- Total Interest: $324,347
What is a Mortgage Amortization Calculator?
A mortgage amortization calculator builds the complete principal-and-interest payment schedule for a home loan — month by month, or year by year — showing exactly how much of each payment reduces your loan balance versus how much covers interest. Unlike a full mortgage payment calculator, this tool focuses purely on the loan's amortization: it does not layer in property tax, homeowners insurance, PMI, or HOA dues, which your lender typically bills separately as an escrow payment on top of principal and interest.
Because mortgage interest is charged on the current outstanding balance, it shrinks progressively as the loan is paid down, while the principal portion of each fixed payment grows. This calculator also models the effect of paying extra toward principal each month — a simple change that can shave years off a 30-year mortgage and eliminate a large share of its total interest cost.
Remaining mortgage balance and cumulative interest over time
Amortization Schedule
| Month | Payment | Principal | Interest | Balance |
|---|---|---|---|---|
| 1 | $1,678.74 | $278.74 | $1,400.00 | $279,721.26 |
| 2 | $1,678.74 | $280.14 | $1,398.61 | $279,441.12 |
| 3 | $1,678.74 | $281.54 | $1,397.21 | $279,159.59 |
| 4 | $1,678.74 | $282.94 | $1,395.80 | $278,876.64 |
| 5 | $1,678.74 | $284.36 | $1,394.38 | $278,592.29 |
| 6 | $1,678.74 | $285.78 | $1,392.96 | $278,306.51 |
| 7 | $1,678.74 | $287.21 | $1,391.53 | $278,019.30 |
| 8 | $1,678.74 | $288.64 | $1,390.10 | $277,730.65 |
| 9 | $1,678.74 | $290.09 | $1,388.65 | $277,440.56 |
| 10 | $1,678.74 | $291.54 | $1,387.20 | $277,149.02 |
| 11 | $1,678.74 | $293.00 | $1,385.75 | $276,856.03 |
| 12 | $1,678.74 | $294.46 | $1,384.28 | $276,561.57 |
| 13 | $1,678.74 | $295.93 | $1,382.81 | $276,265.63 |
| 14 | $1,678.74 | $297.41 | $1,381.33 | $275,968.22 |
| 15 | $1,678.74 | $298.90 | $1,379.84 | $275,669.32 |
| 16 | $1,678.74 | $300.39 | $1,378.35 | $275,368.93 |
| 17 | $1,678.74 | $301.90 | $1,376.84 | $275,067.03 |
| 18 | $1,678.74 | $303.41 | $1,375.34 | $274,763.62 |
| 19 | $1,678.74 | $304.92 | $1,373.82 | $274,458.70 |
| 20 | $1,678.74 | $306.45 | $1,372.29 | $274,152.25 |
| 21 | $1,678.74 | $307.98 | $1,370.76 | $273,844.27 |
| 22 | $1,678.74 | $309.52 | $1,369.22 | $273,534.75 |
| 23 | $1,678.74 | $311.07 | $1,367.67 | $273,223.68 |
| 24 | $1,678.74 | $312.62 | $1,366.12 | $272,911.06 |
| 25 | $1,678.74 | $314.19 | $1,364.56 | $272,596.87 |
| 26 | $1,678.74 | $315.76 | $1,362.98 | $272,281.12 |
| 27 | $1,678.74 | $317.34 | $1,361.41 | $271,963.78 |
| 28 | $1,678.74 | $318.92 | $1,359.82 | $271,644.86 |
| 29 | $1,678.74 | $320.52 | $1,358.22 | $271,324.34 |
| 30 | $1,678.74 | $322.12 | $1,356.62 | $271,002.22 |
| 31 | $1,678.74 | $323.73 | $1,355.01 | $270,678.49 |
| 32 | $1,678.74 | $325.35 | $1,353.39 | $270,353.14 |
| 33 | $1,678.74 | $326.98 | $1,351.77 | $270,026.17 |
| 34 | $1,678.74 | $328.61 | $1,350.13 | $269,697.55 |
| 35 | $1,678.74 | $330.25 | $1,348.49 | $269,367.30 |
| 36 | $1,678.74 | $331.90 | $1,346.84 | $269,035.40 |
| 37 | $1,678.74 | $333.56 | $1,345.18 | $268,701.83 |
| 38 | $1,678.74 | $335.23 | $1,343.51 | $268,366.60 |
| 39 | $1,678.74 | $336.91 | $1,341.83 | $268,029.69 |
| 40 | $1,678.74 | $338.59 | $1,340.15 | $267,691.10 |
| 41 | $1,678.74 | $340.29 | $1,338.46 | $267,350.81 |
| 42 | $1,678.74 | $341.99 | $1,336.75 | $267,008.82 |
| 43 | $1,678.74 | $343.70 | $1,335.04 | $266,665.13 |
| 44 | $1,678.74 | $345.42 | $1,333.33 | $266,319.71 |
| 45 | $1,678.74 | $347.14 | $1,331.60 | $265,972.57 |
| 46 | $1,678.74 | $348.88 | $1,329.86 | $265,623.69 |
| 47 | $1,678.74 | $350.62 | $1,328.12 | $265,273.07 |
| 48 | $1,678.74 | $352.38 | $1,326.37 | $264,920.69 |
| 49 | $1,678.74 | $354.14 | $1,324.60 | $264,566.55 |
| 50 | $1,678.74 | $355.91 | $1,322.83 | $264,210.64 |
| 51 | $1,678.74 | $357.69 | $1,321.05 | $263,852.96 |
| 52 | $1,678.74 | $359.48 | $1,319.26 | $263,493.48 |
| 53 | $1,678.74 | $361.27 | $1,317.47 | $263,132.20 |
| 54 | $1,678.74 | $363.08 | $1,315.66 | $262,769.12 |
| 55 | $1,678.74 | $364.90 | $1,313.85 | $262,404.23 |
| 56 | $1,678.74 | $366.72 | $1,312.02 | $262,037.51 |
| 57 | $1,678.74 | $368.55 | $1,310.19 | $261,668.95 |
| 58 | $1,678.74 | $370.40 | $1,308.34 | $261,298.56 |
| 59 | $1,678.74 | $372.25 | $1,306.49 | $260,926.31 |
| 60 | $1,678.74 | $374.11 | $1,304.63 | $260,552.20 |
| 61 | $1,678.74 | $375.98 | $1,302.76 | $260,176.22 |
| 62 | $1,678.74 | $377.86 | $1,300.88 | $259,798.36 |
| 63 | $1,678.74 | $379.75 | $1,298.99 | $259,418.61 |
| 64 | $1,678.74 | $381.65 | $1,297.09 | $259,036.96 |
| 65 | $1,678.74 | $383.56 | $1,295.18 | $258,653.40 |
| 66 | $1,678.74 | $385.47 | $1,293.27 | $258,267.93 |
| 67 | $1,678.74 | $387.40 | $1,291.34 | $257,880.53 |
| 68 | $1,678.74 | $389.34 | $1,289.40 | $257,491.19 |
| 69 | $1,678.74 | $391.29 | $1,287.46 | $257,099.90 |
| 70 | $1,678.74 | $393.24 | $1,285.50 | $256,706.66 |
| 71 | $1,678.74 | $395.21 | $1,283.53 | $256,311.45 |
| 72 | $1,678.74 | $397.18 | $1,281.56 | $255,914.27 |
| 73 | $1,678.74 | $399.17 | $1,279.57 | $255,515.10 |
| 74 | $1,678.74 | $401.17 | $1,277.58 | $255,113.93 |
| 75 | $1,678.74 | $403.17 | $1,275.57 | $254,710.76 |
| 76 | $1,678.74 | $405.19 | $1,273.55 | $254,305.57 |
| 77 | $1,678.74 | $407.21 | $1,271.53 | $253,898.36 |
| 78 | $1,678.74 | $409.25 | $1,269.49 | $253,489.11 |
| 79 | $1,678.74 | $411.30 | $1,267.45 | $253,077.81 |
| 80 | $1,678.74 | $413.35 | $1,265.39 | $252,664.46 |
| 81 | $1,678.74 | $415.42 | $1,263.32 | $252,249.04 |
| 82 | $1,678.74 | $417.50 | $1,261.25 | $251,831.55 |
| 83 | $1,678.74 | $419.58 | $1,259.16 | $251,411.96 |
| 84 | $1,678.74 | $421.68 | $1,257.06 | $250,990.28 |
| 85 | $1,678.74 | $423.79 | $1,254.95 | $250,566.49 |
| 86 | $1,678.74 | $425.91 | $1,252.83 | $250,140.58 |
| 87 | $1,678.74 | $428.04 | $1,250.70 | $249,712.54 |
| 88 | $1,678.74 | $430.18 | $1,248.56 | $249,282.36 |
| 89 | $1,678.74 | $432.33 | $1,246.41 | $248,850.03 |
| 90 | $1,678.74 | $434.49 | $1,244.25 | $248,415.54 |
| 91 | $1,678.74 | $436.66 | $1,242.08 | $247,978.88 |
| 92 | $1,678.74 | $438.85 | $1,239.89 | $247,540.03 |
| 93 | $1,678.74 | $441.04 | $1,237.70 | $247,098.99 |
| 94 | $1,678.74 | $443.25 | $1,235.49 | $246,655.74 |
| 95 | $1,678.74 | $445.46 | $1,233.28 | $246,210.28 |
| 96 | $1,678.74 | $447.69 | $1,231.05 | $245,762.59 |
| 97 | $1,678.74 | $449.93 | $1,228.81 | $245,312.66 |
| 98 | $1,678.74 | $452.18 | $1,226.56 | $244,860.49 |
| 99 | $1,678.74 | $454.44 | $1,224.30 | $244,406.05 |
| 100 | $1,678.74 | $456.71 | $1,222.03 | $243,949.33 |
| 101 | $1,678.74 | $458.99 | $1,219.75 | $243,490.34 |
| 102 | $1,678.74 | $461.29 | $1,217.45 | $243,029.05 |
| 103 | $1,678.74 | $463.60 | $1,215.15 | $242,565.45 |
| 104 | $1,678.74 | $465.91 | $1,212.83 | $242,099.54 |
| 105 | $1,678.74 | $468.24 | $1,210.50 | $241,631.30 |
| 106 | $1,678.74 | $470.58 | $1,208.16 | $241,160.71 |
| 107 | $1,678.74 | $472.94 | $1,205.80 | $240,687.77 |
| 108 | $1,678.74 | $475.30 | $1,203.44 | $240,212.47 |
| 109 | $1,678.74 | $477.68 | $1,201.06 | $239,734.79 |
| 110 | $1,678.74 | $480.07 | $1,198.67 | $239,254.72 |
| 111 | $1,678.74 | $482.47 | $1,196.27 | $238,772.26 |
| 112 | $1,678.74 | $484.88 | $1,193.86 | $238,287.38 |
| 113 | $1,678.74 | $487.30 | $1,191.44 | $237,800.07 |
| 114 | $1,678.74 | $489.74 | $1,189.00 | $237,310.33 |
| 115 | $1,678.74 | $492.19 | $1,186.55 | $236,818.14 |
| 116 | $1,678.74 | $494.65 | $1,184.09 | $236,323.49 |
| 117 | $1,678.74 | $497.12 | $1,181.62 | $235,826.37 |
| 118 | $1,678.74 | $499.61 | $1,179.13 | $235,326.76 |
| 119 | $1,678.74 | $502.11 | $1,176.63 | $234,824.65 |
| 120 | $1,678.74 | $504.62 | $1,174.12 | $234,320.03 |
| 121 | $1,678.74 | $507.14 | $1,171.60 | $233,812.89 |
| 122 | $1,678.74 | $509.68 | $1,169.06 | $233,303.21 |
| 123 | $1,678.74 | $512.23 | $1,166.52 | $232,790.99 |
| 124 | $1,678.74 | $514.79 | $1,163.95 | $232,276.20 |
| 125 | $1,678.74 | $517.36 | $1,161.38 | $231,758.84 |
| 126 | $1,678.74 | $519.95 | $1,158.79 | $231,238.89 |
| 127 | $1,678.74 | $522.55 | $1,156.19 | $230,716.34 |
| 128 | $1,678.74 | $525.16 | $1,153.58 | $230,191.19 |
| 129 | $1,678.74 | $527.79 | $1,150.96 | $229,663.40 |
| 130 | $1,678.74 | $530.42 | $1,148.32 | $229,132.98 |
| 131 | $1,678.74 | $533.08 | $1,145.66 | $228,599.90 |
| 132 | $1,678.74 | $535.74 | $1,143.00 | $228,064.16 |
| 133 | $1,678.74 | $538.42 | $1,140.32 | $227,525.74 |
| 134 | $1,678.74 | $541.11 | $1,137.63 | $226,984.62 |
| 135 | $1,678.74 | $543.82 | $1,134.92 | $226,440.80 |
| 136 | $1,678.74 | $546.54 | $1,132.20 | $225,894.27 |
| 137 | $1,678.74 | $549.27 | $1,129.47 | $225,345.00 |
| 138 | $1,678.74 | $552.02 | $1,126.72 | $224,792.98 |
| 139 | $1,678.74 | $554.78 | $1,123.96 | $224,238.20 |
| 140 | $1,678.74 | $557.55 | $1,121.19 | $223,680.65 |
| 141 | $1,678.74 | $560.34 | $1,118.40 | $223,120.32 |
| 142 | $1,678.74 | $563.14 | $1,115.60 | $222,557.18 |
| 143 | $1,678.74 | $565.96 | $1,112.79 | $221,991.22 |
| 144 | $1,678.74 | $568.79 | $1,109.96 | $221,422.43 |
| 145 | $1,678.74 | $571.63 | $1,107.11 | $220,850.81 |
| 146 | $1,678.74 | $574.49 | $1,104.25 | $220,276.32 |
| 147 | $1,678.74 | $577.36 | $1,101.38 | $219,698.96 |
| 148 | $1,678.74 | $580.25 | $1,098.49 | $219,118.71 |
| 149 | $1,678.74 | $583.15 | $1,095.59 | $218,535.56 |
| 150 | $1,678.74 | $586.06 | $1,092.68 | $217,949.50 |
| 151 | $1,678.74 | $588.99 | $1,089.75 | $217,360.51 |
| 152 | $1,678.74 | $591.94 | $1,086.80 | $216,768.57 |
| 153 | $1,678.74 | $594.90 | $1,083.84 | $216,173.67 |
| 154 | $1,678.74 | $597.87 | $1,080.87 | $215,575.79 |
| 155 | $1,678.74 | $600.86 | $1,077.88 | $214,974.93 |
| 156 | $1,678.74 | $603.87 | $1,074.87 | $214,371.07 |
| 157 | $1,678.74 | $606.89 | $1,071.86 | $213,764.18 |
| 158 | $1,678.74 | $609.92 | $1,068.82 | $213,154.26 |
| 159 | $1,678.74 | $612.97 | $1,065.77 | $212,541.29 |
| 160 | $1,678.74 | $616.04 | $1,062.71 | $211,925.25 |
| 161 | $1,678.74 | $619.12 | $1,059.63 | $211,306.14 |
| 162 | $1,678.74 | $622.21 | $1,056.53 | $210,683.93 |
| 163 | $1,678.74 | $625.32 | $1,053.42 | $210,058.61 |
| 164 | $1,678.74 | $628.45 | $1,050.29 | $209,430.16 |
| 165 | $1,678.74 | $631.59 | $1,047.15 | $208,798.57 |
| 166 | $1,678.74 | $634.75 | $1,043.99 | $208,163.82 |
| 167 | $1,678.74 | $637.92 | $1,040.82 | $207,525.90 |
| 168 | $1,678.74 | $641.11 | $1,037.63 | $206,884.78 |
| 169 | $1,678.74 | $644.32 | $1,034.42 | $206,240.47 |
| 170 | $1,678.74 | $647.54 | $1,031.20 | $205,592.93 |
| 171 | $1,678.74 | $650.78 | $1,027.96 | $204,942.15 |
| 172 | $1,678.74 | $654.03 | $1,024.71 | $204,288.12 |
| 173 | $1,678.74 | $657.30 | $1,021.44 | $203,630.82 |
| 174 | $1,678.74 | $660.59 | $1,018.15 | $202,970.23 |
| 175 | $1,678.74 | $663.89 | $1,014.85 | $202,306.34 |
| 176 | $1,678.74 | $667.21 | $1,011.53 | $201,639.13 |
| 177 | $1,678.74 | $670.55 | $1,008.20 | $200,968.59 |
| 178 | $1,678.74 | $673.90 | $1,004.84 | $200,294.69 |
| 179 | $1,678.74 | $677.27 | $1,001.47 | $199,617.42 |
| 180 | $1,678.74 | $680.65 | $998.09 | $198,936.76 |
| 181 | $1,678.74 | $684.06 | $994.68 | $198,252.71 |
| 182 | $1,678.74 | $687.48 | $991.26 | $197,565.23 |
| 183 | $1,678.74 | $690.92 | $987.83 | $196,874.31 |
| 184 | $1,678.74 | $694.37 | $984.37 | $196,179.94 |
| 185 | $1,678.74 | $697.84 | $980.90 | $195,482.10 |
| 186 | $1,678.74 | $701.33 | $977.41 | $194,780.77 |
| 187 | $1,678.74 | $704.84 | $973.90 | $194,075.93 |
| 188 | $1,678.74 | $708.36 | $970.38 | $193,367.57 |
| 189 | $1,678.74 | $711.90 | $966.84 | $192,655.67 |
| 190 | $1,678.74 | $715.46 | $963.28 | $191,940.20 |
| 191 | $1,678.74 | $719.04 | $959.70 | $191,221.16 |
| 192 | $1,678.74 | $722.64 | $956.11 | $190,498.53 |
| 193 | $1,678.74 | $726.25 | $952.49 | $189,772.28 |
| 194 | $1,678.74 | $729.88 | $948.86 | $189,042.40 |
| 195 | $1,678.74 | $733.53 | $945.21 | $188,308.87 |
| 196 | $1,678.74 | $737.20 | $941.54 | $187,571.67 |
| 197 | $1,678.74 | $740.88 | $937.86 | $186,830.79 |
| 198 | $1,678.74 | $744.59 | $934.15 | $186,086.20 |
| 199 | $1,678.74 | $748.31 | $930.43 | $185,337.89 |
| 200 | $1,678.74 | $752.05 | $926.69 | $184,585.84 |
| 201 | $1,678.74 | $755.81 | $922.93 | $183,830.03 |
| 202 | $1,678.74 | $759.59 | $919.15 | $183,070.44 |
| 203 | $1,678.74 | $763.39 | $915.35 | $182,307.05 |
| 204 | $1,678.74 | $767.21 | $911.54 | $181,539.84 |
| 205 | $1,678.74 | $771.04 | $907.70 | $180,768.80 |
| 206 | $1,678.74 | $774.90 | $903.84 | $179,993.90 |
| 207 | $1,678.74 | $778.77 | $899.97 | $179,215.13 |
| 208 | $1,678.74 | $782.67 | $896.08 | $178,432.46 |
| 209 | $1,678.74 | $786.58 | $892.16 | $177,645.88 |
| 210 | $1,678.74 | $790.51 | $888.23 | $176,855.37 |
| 211 | $1,678.74 | $794.46 | $884.28 | $176,060.91 |
| 212 | $1,678.74 | $798.44 | $880.30 | $175,262.47 |
| 213 | $1,678.74 | $802.43 | $876.31 | $174,460.04 |
| 214 | $1,678.74 | $806.44 | $872.30 | $173,653.60 |
| 215 | $1,678.74 | $810.47 | $868.27 | $172,843.13 |
| 216 | $1,678.74 | $814.53 | $864.22 | $172,028.60 |
| 217 | $1,678.74 | $818.60 | $860.14 | $171,210.00 |
| 218 | $1,678.74 | $822.69 | $856.05 | $170,387.31 |
| 219 | $1,678.74 | $826.80 | $851.94 | $169,560.51 |
| 220 | $1,678.74 | $830.94 | $847.80 | $168,729.57 |
| 221 | $1,678.74 | $835.09 | $843.65 | $167,894.47 |
| 222 | $1,678.74 | $839.27 | $839.47 | $167,055.20 |
| 223 | $1,678.74 | $843.47 | $835.28 | $166,211.74 |
| 224 | $1,678.74 | $847.68 | $831.06 | $165,364.06 |
| 225 | $1,678.74 | $851.92 | $826.82 | $164,512.14 |
| 226 | $1,678.74 | $856.18 | $822.56 | $163,655.95 |
| 227 | $1,678.74 | $860.46 | $818.28 | $162,795.49 |
| 228 | $1,678.74 | $864.76 | $813.98 | $161,930.73 |
| 229 | $1,678.74 | $869.09 | $809.65 | $161,061.64 |
| 230 | $1,678.74 | $873.43 | $805.31 | $160,188.21 |
| 231 | $1,678.74 | $877.80 | $800.94 | $159,310.41 |
| 232 | $1,678.74 | $882.19 | $796.55 | $158,428.22 |
| 233 | $1,678.74 | $886.60 | $792.14 | $157,541.62 |
| 234 | $1,678.74 | $891.03 | $787.71 | $156,650.58 |
| 235 | $1,678.74 | $895.49 | $783.25 | $155,755.10 |
| 236 | $1,678.74 | $899.97 | $778.78 | $154,855.13 |
| 237 | $1,678.74 | $904.47 | $774.28 | $153,950.66 |
| 238 | $1,678.74 | $908.99 | $769.75 | $153,041.68 |
| 239 | $1,678.74 | $913.53 | $765.21 | $152,128.14 |
| 240 | $1,678.74 | $918.10 | $760.64 | $151,210.04 |
| 241 | $1,678.74 | $922.69 | $756.05 | $150,287.35 |
| 242 | $1,678.74 | $927.30 | $751.44 | $149,360.05 |
| 243 | $1,678.74 | $931.94 | $746.80 | $148,428.10 |
| 244 | $1,678.74 | $936.60 | $742.14 | $147,491.50 |
| 245 | $1,678.74 | $941.28 | $737.46 | $146,550.22 |
| 246 | $1,678.74 | $945.99 | $732.75 | $145,604.23 |
| 247 | $1,678.74 | $950.72 | $728.02 | $144,653.51 |
| 248 | $1,678.74 | $955.47 | $723.27 | $143,698.03 |
| 249 | $1,678.74 | $960.25 | $718.49 | $142,737.78 |
| 250 | $1,678.74 | $965.05 | $713.69 | $141,772.73 |
| 251 | $1,678.74 | $969.88 | $708.86 | $140,802.85 |
| 252 | $1,678.74 | $974.73 | $704.01 | $139,828.13 |
| 253 | $1,678.74 | $979.60 | $699.14 | $138,848.53 |
| 254 | $1,678.74 | $984.50 | $694.24 | $137,864.03 |
| 255 | $1,678.74 | $989.42 | $689.32 | $136,874.60 |
| 256 | $1,678.74 | $994.37 | $684.37 | $135,880.24 |
| 257 | $1,678.74 | $999.34 | $679.40 | $134,880.90 |
| 258 | $1,678.74 | $1,004.34 | $674.40 | $133,876.56 |
| 259 | $1,678.74 | $1,009.36 | $669.38 | $132,867.20 |
| 260 | $1,678.74 | $1,014.41 | $664.34 | $131,852.79 |
| 261 | $1,678.74 | $1,019.48 | $659.26 | $130,833.32 |
| 262 | $1,678.74 | $1,024.57 | $654.17 | $129,808.74 |
| 263 | $1,678.74 | $1,029.70 | $649.04 | $128,779.04 |
| 264 | $1,678.74 | $1,034.85 | $643.90 | $127,744.20 |
| 265 | $1,678.74 | $1,040.02 | $638.72 | $126,704.18 |
| 266 | $1,678.74 | $1,045.22 | $633.52 | $125,658.96 |
| 267 | $1,678.74 | $1,050.45 | $628.29 | $124,608.51 |
| 268 | $1,678.74 | $1,055.70 | $623.04 | $123,552.81 |
| 269 | $1,678.74 | $1,060.98 | $617.76 | $122,491.83 |
| 270 | $1,678.74 | $1,066.28 | $612.46 | $121,425.55 |
| 271 | $1,678.74 | $1,071.61 | $607.13 | $120,353.94 |
| 272 | $1,678.74 | $1,076.97 | $601.77 | $119,276.97 |
| 273 | $1,678.74 | $1,082.36 | $596.38 | $118,194.61 |
| 274 | $1,678.74 | $1,087.77 | $590.97 | $117,106.84 |
| 275 | $1,678.74 | $1,093.21 | $585.53 | $116,013.63 |
| 276 | $1,678.74 | $1,098.67 | $580.07 | $114,914.96 |
| 277 | $1,678.74 | $1,104.17 | $574.57 | $113,810.79 |
| 278 | $1,678.74 | $1,109.69 | $569.05 | $112,701.11 |
| 279 | $1,678.74 | $1,115.24 | $563.51 | $111,585.87 |
| 280 | $1,678.74 | $1,120.81 | $557.93 | $110,465.06 |
| 281 | $1,678.74 | $1,126.42 | $552.33 | $109,338.64 |
| 282 | $1,678.74 | $1,132.05 | $546.69 | $108,206.59 |
| 283 | $1,678.74 | $1,137.71 | $541.03 | $107,068.89 |
| 284 | $1,678.74 | $1,143.40 | $535.34 | $105,925.49 |
| 285 | $1,678.74 | $1,149.11 | $529.63 | $104,776.37 |
| 286 | $1,678.74 | $1,154.86 | $523.88 | $103,621.52 |
| 287 | $1,678.74 | $1,160.63 | $518.11 | $102,460.88 |
| 288 | $1,678.74 | $1,166.44 | $512.30 | $101,294.44 |
| 289 | $1,678.74 | $1,172.27 | $506.47 | $100,122.18 |
| 290 | $1,678.74 | $1,178.13 | $500.61 | $98,944.04 |
| 291 | $1,678.74 | $1,184.02 | $494.72 | $97,760.02 |
| 292 | $1,678.74 | $1,189.94 | $488.80 | $96,570.08 |
| 293 | $1,678.74 | $1,195.89 | $482.85 | $95,374.19 |
| 294 | $1,678.74 | $1,201.87 | $476.87 | $94,172.32 |
| 295 | $1,678.74 | $1,207.88 | $470.86 | $92,964.44 |
| 296 | $1,678.74 | $1,213.92 | $464.82 | $91,750.52 |
| 297 | $1,678.74 | $1,219.99 | $458.75 | $90,530.53 |
| 298 | $1,678.74 | $1,226.09 | $452.65 | $89,304.44 |
| 299 | $1,678.74 | $1,232.22 | $446.52 | $88,072.22 |
| 300 | $1,678.74 | $1,238.38 | $440.36 | $86,833.84 |
| 301 | $1,678.74 | $1,244.57 | $434.17 | $85,589.27 |
| 302 | $1,678.74 | $1,250.80 | $427.95 | $84,338.48 |
| 303 | $1,678.74 | $1,257.05 | $421.69 | $83,081.43 |
| 304 | $1,678.74 | $1,263.33 | $415.41 | $81,818.09 |
| 305 | $1,678.74 | $1,269.65 | $409.09 | $80,548.44 |
| 306 | $1,678.74 | $1,276.00 | $402.74 | $79,272.44 |
| 307 | $1,678.74 | $1,282.38 | $396.36 | $77,990.06 |
| 308 | $1,678.74 | $1,288.79 | $389.95 | $76,701.27 |
| 309 | $1,678.74 | $1,295.24 | $383.51 | $75,406.04 |
| 310 | $1,678.74 | $1,301.71 | $377.03 | $74,104.33 |
| 311 | $1,678.74 | $1,308.22 | $370.52 | $72,796.11 |
| 312 | $1,678.74 | $1,314.76 | $363.98 | $71,481.35 |
| 313 | $1,678.74 | $1,321.33 | $357.41 | $70,160.01 |
| 314 | $1,678.74 | $1,327.94 | $350.80 | $68,832.07 |
| 315 | $1,678.74 | $1,334.58 | $344.16 | $67,497.49 |
| 316 | $1,678.74 | $1,341.25 | $337.49 | $66,156.23 |
| 317 | $1,678.74 | $1,347.96 | $330.78 | $64,808.27 |
| 318 | $1,678.74 | $1,354.70 | $324.04 | $63,453.57 |
| 319 | $1,678.74 | $1,361.47 | $317.27 | $62,092.10 |
| 320 | $1,678.74 | $1,368.28 | $310.46 | $60,723.82 |
| 321 | $1,678.74 | $1,375.12 | $303.62 | $59,348.70 |
| 322 | $1,678.74 | $1,382.00 | $296.74 | $57,966.70 |
| 323 | $1,678.74 | $1,388.91 | $289.83 | $56,577.79 |
| 324 | $1,678.74 | $1,395.85 | $282.89 | $55,181.94 |
| 325 | $1,678.74 | $1,402.83 | $275.91 | $53,779.11 |
| 326 | $1,678.74 | $1,409.85 | $268.90 | $52,369.26 |
| 327 | $1,678.74 | $1,416.90 | $261.85 | $50,952.37 |
| 328 | $1,678.74 | $1,423.98 | $254.76 | $49,528.39 |
| 329 | $1,678.74 | $1,431.10 | $247.64 | $48,097.29 |
| 330 | $1,678.74 | $1,438.26 | $240.49 | $46,659.03 |
| 331 | $1,678.74 | $1,445.45 | $233.30 | $45,213.58 |
| 332 | $1,678.74 | $1,452.67 | $226.07 | $43,760.91 |
| 333 | $1,678.74 | $1,459.94 | $218.80 | $42,300.97 |
| 334 | $1,678.74 | $1,467.24 | $211.50 | $40,833.74 |
| 335 | $1,678.74 | $1,474.57 | $204.17 | $39,359.16 |
| 336 | $1,678.74 | $1,481.95 | $196.80 | $37,877.22 |
| 337 | $1,678.74 | $1,489.36 | $189.39 | $36,387.86 |
| 338 | $1,678.74 | $1,496.80 | $181.94 | $34,891.06 |
| 339 | $1,678.74 | $1,504.29 | $174.46 | $33,386.78 |
| 340 | $1,678.74 | $1,511.81 | $166.93 | $31,874.97 |
| 341 | $1,678.74 | $1,519.37 | $159.37 | $30,355.60 |
| 342 | $1,678.74 | $1,526.96 | $151.78 | $28,828.64 |
| 343 | $1,678.74 | $1,534.60 | $144.14 | $27,294.04 |
| 344 | $1,678.74 | $1,542.27 | $136.47 | $25,751.77 |
| 345 | $1,678.74 | $1,549.98 | $128.76 | $24,201.79 |
| 346 | $1,678.74 | $1,557.73 | $121.01 | $22,644.05 |
| 347 | $1,678.74 | $1,565.52 | $113.22 | $21,078.53 |
| 348 | $1,678.74 | $1,573.35 | $105.39 | $19,505.18 |
| 349 | $1,678.74 | $1,581.22 | $97.53 | $17,923.97 |
| 350 | $1,678.74 | $1,589.12 | $89.62 | $16,334.85 |
| 351 | $1,678.74 | $1,597.07 | $81.67 | $14,737.78 |
| 352 | $1,678.74 | $1,605.05 | $73.69 | $13,132.73 |
| 353 | $1,678.74 | $1,613.08 | $65.66 | $11,519.65 |
| 354 | $1,678.74 | $1,621.14 | $57.60 | $9,898.51 |
| 355 | $1,678.74 | $1,629.25 | $49.49 | $8,269.26 |
| 356 | $1,678.74 | $1,637.40 | $41.35 | $6,631.86 |
| 357 | $1,678.74 | $1,645.58 | $33.16 | $4,986.28 |
| 358 | $1,678.74 | $1,653.81 | $24.93 | $3,332.47 |
| 359 | $1,678.74 | $1,662.08 | $16.66 | $1,670.39 |
| 360 | $1,678.74 | $1,670.39 | $8.35 | $0.00 |
| Year | End Date | Principal Paid | Interest Paid | Balance |
|---|---|---|---|---|
| 1 | Aug 2027 | $3,438.43 | $16,706.46 | $276,561.57 |
| 2 | Aug 2028 | $3,650.51 | $16,494.39 | $272,911.06 |
| 3 | Aug 2029 | $3,875.66 | $16,269.23 | $269,035.40 |
| 4 | Aug 2030 | $4,114.71 | $16,030.19 | $264,920.69 |
| 5 | Aug 2031 | $4,368.49 | $15,776.41 | $260,552.20 |
| 6 | Aug 2032 | $4,637.93 | $15,506.97 | $255,914.27 |
| 7 | Aug 2033 | $4,923.99 | $15,220.91 | $250,990.28 |
| 8 | Aug 2034 | $5,227.69 | $14,917.21 | $245,762.59 |
| 9 | Aug 2035 | $5,550.12 | $14,594.78 | $240,212.47 |
| 10 | Aug 2036 | $5,892.44 | $14,252.46 | $234,320.03 |
| 11 | Aug 2037 | $6,255.87 | $13,889.02 | $228,064.16 |
| 12 | Aug 2038 | $6,641.72 | $13,503.18 | $221,422.43 |
| 13 | Aug 2039 | $7,051.37 | $13,093.53 | $214,371.07 |
| 14 | Aug 2040 | $7,486.28 | $12,658.62 | $206,884.78 |
| 15 | Aug 2041 | $7,948.02 | $12,196.88 | $198,936.76 |
| 16 | Aug 2042 | $8,438.24 | $11,706.66 | $190,498.53 |
| 17 | Aug 2043 | $8,958.69 | $11,186.21 | $181,539.84 |
| 18 | Aug 2044 | $9,511.24 | $10,633.66 | $172,028.60 |
| 19 | Aug 2045 | $10,097.87 | $10,047.03 | $161,930.73 |
| 20 | Aug 2046 | $10,720.69 | $9,424.21 | $151,210.04 |
| 21 | Aug 2047 | $11,381.92 | $8,762.98 | $139,828.13 |
| 22 | Aug 2048 | $12,083.93 | $8,060.97 | $127,744.20 |
| 23 | Aug 2049 | $12,829.24 | $7,315.66 | $114,914.96 |
| 24 | Aug 2050 | $13,620.52 | $6,524.38 | $101,294.44 |
| 25 | Aug 2051 | $14,460.60 | $5,684.30 | $86,833.84 |
| 26 | Aug 2052 | $15,352.50 | $4,792.40 | $71,481.35 |
| 27 | Aug 2053 | $16,299.41 | $3,845.49 | $55,181.94 |
| 28 | Aug 2054 | $17,304.72 | $2,840.18 | $37,877.22 |
| 29 | Aug 2055 | $18,372.04 | $1,772.86 | $19,505.18 |
| 30 | Aug 2056 | $19,505.18 | $639.71 | $0.00 |
Extra Payment Comparison for $280,000 at 6%
Every row below is computed specifically for your loan amount, rate, and term. See how different extra monthly payments change your payoff time and total interest.
| Extra Payment | Payoff Time | Time Saved | Interest Saved |
|---|---|---|---|
| None (current) | 30 yrs | 0 yr 0 mo | $0 |
| $100.00/mo | 25 yr 11 mo | 4 yr 1 mo | $52,698 |
| $200.00/mo | 22 yr 11 mo | 7 yr 1 mo | $89,341 |
| $500.00/mo | 17 yr 3 mo | 12 yr 9 mo | $154,918 |
How a Mortgage Amortization Schedule Is Built
Every principal-and-interest payment on a fixed-rate mortgage is the same dollar amount, computed with the standard amortization formula. What changes month to month is the split between interest and principal within that fixed payment.
- M — fixed monthly principal & interest payment
- P — loan amount (home price minus down payment)
- r — monthly interest rate (annual rate ÷ 12)
- n — total number of monthly payments
Each period, interest is charged only on the current outstanding balance: interest = balance × monthly rate. Whatever is left of the fixed payment after that interest charge goes toward principal, which is why the schedule above shows the principal portion growing — and the interest portion shrinking — every single month.
This Schedule Excludes Escrow (Taxes, Insurance, PMI)
Most homeowners actually send their lender a single monthly payment that bundles principal & interest with an escrow portion covering property tax and homeowners insurance — and, if the down payment is below 20%, private mortgage insurance (PMI). This calculator shows only the principal-and-interest amortization, since escrow costs vary by county, insurer, and lender and don't amortize the way a loan balance does. Use a full mortgage payment calculator if you want the all-in monthly housing cost including escrow.
How the Down Payment Shapes the Whole Schedule
Because the down payment is subtracted from the home price before any interest math happens, it has an outsized effect on total interest paid. A larger down payment reduces the loan amount directly, which lowers every single interest charge for the entire life of the loan — not just the first payment. Down payments below 20% also typically trigger PMI (see above), adding an ongoing cost this calculator does not model, on top of a larger loan balance.
What Extra Payments Actually Do
An extra payment applied to principal reduces the balance immediately, which means every future month's interest charge — calculated on that now-smaller balance — is permanently lower. This compounds: the mortgage doesn't just finish faster, it finishes faster while paying less interest in every remaining month along the way. That is why a relatively small extra payment can eliminate a disproportionately large share of total interest, especially early in the loan when the balance is largest.
The comparison table above shows this effect for several extra payment amounts on your exact loan. Always confirm with your lender that extra payments are applied directly to principal (not held as a prepaid future payment) and check for any prepayment penalty before committing to an accelerated payoff plan.
Example — Your Current Inputs
On a $350,000 home with a $70,000 down payment (20.0%), you finance $280,000 at 6% over 30 years. The principal and interest payment is $1,678.74 per month, and total interest over the full term is $324,347.
Additional Example — A $400,000 Home, 20% Down
A $400,000 home with a $80,000 (20%) down payment leaves a $320,000 loan. At 6% over 30 years, the principal & interest payment is about $1,918.56/month, and total interest over the full term is roughly $370,681 — more than the loan amount itself. By year 15 (the halfway point in time), the outstanding balance is still around $219,000, because the early payments are so interest-heavy.
Adding just $200/month extra toward principal from the very first payment shortens that mortgage to about 22 years and 6 months — over 7 years earlier — and saves roughly $99,000 in total interest.
About These Parameters
- Home Price
- The total agreed purchase price of the home. Combined with your down payment, this determines the loan amount the entire amortization schedule is built around.
- Down Payment
- The upfront cash paid toward the home price. A larger down payment shrinks the loan amount — and therefore every future interest charge — and can help you avoid PMI if it reaches 20% of the home price.
- Annual Interest Rate
- The yearly rate charged on the outstanding loan balance, divided by 12 for the monthly schedule. This calculator assumes a fixed rate for the entire term.
- Loan Term
- How many years the regular (non-extra) payment schedule is designed to take. Shorter terms mean a higher required payment but dramatically less total interest.
- Extra Monthly Payment
- An optional amount applied directly to principal every month, in addition to the required payment. Leave at zero to see the standard, unaccelerated schedule.
Frequently Asked Questions
Why doesn't this include my full monthly mortgage payment?
This calculator isolates the principal-and-interest amortization, which is the portion that actually pays down your loan balance over time. Property tax, homeowners insurance, PMI, and HOA dues (if any) are typically billed alongside it in an escrow payment, but they don't amortize a loan balance — they're recurring costs, not debt repayment.
How is this different from a general amortization calculator?
The underlying math is the same fixed-rate amortization formula used for any installment loan. This version is framed around home-purchase inputs — home price and down payment, rather than a raw loan amount — and its content and FAQ focus on mortgage-specific concerns like PMI, escrow, and down payment sizing.
Does a bigger down payment always save money?
It always reduces total interest paid, since it shrinks the loan amount every interest charge is based on. Whether it's the best use of your cash also depends on your other financial goals, since money in a down payment is illiquid until you sell or refinance — but purely from an interest-cost perspective, a larger down payment always wins.
What happens to the schedule if I refinance partway through?
Refinancing effectively starts a brand-new amortization schedule on the remaining balance at the new rate and term — this calculator's schedule is only valid for the original rate and term you entered. Refinancing later in a mortgage's life (once more of the payment already goes to principal) generally has a smaller relative benefit than refinancing early.