Calculate how extra payments can accelerate your mortgage payoff. Add multiple one-time and recurring payments to see your new payoff date, interest saved, and detailed amortization schedules. Perfect for homeowners looking to save on interest and become mortgage-free faster. If you have a lump sum, compare recasting, refinancing and an extra principal payment to see how payment relief and total cost differ.
Loan Inputs
Principal borrowed at origination.
Fixed note rate with monthly payments.
Original loan term.
Used for schedule dates.
Extra Principal
One-Time Extra
Apply a lump sum on a specific month number (1 = first month).
Recurring Monthly Extra
Apply a fixed extra each month between a start and end month (inclusive).
Remaining Balance & Cumulative Interest
- Remaining Balance
- Cumulative Interest Paid
Yearly Principal vs Interest
- Principal
- Interest
Amortization Schedule (with extras)
| # | Date | Payment | Interest | Principal | Extras | Ending Balance |
|---|---|---|---|---|---|---|
| 1 | 2026-10-01 | $2,528.27 | $2,166.67 | $361.60 | $0.00 | $399,638.40 |
| 2 | 2026-11-01 | $2,528.27 | $2,164.71 | $363.56 | $0.00 | $399,274.84 |
| 3 | 2026-12-01 | $2,528.27 | $2,162.74 | $365.53 | $0.00 | $398,909.31 |
| 4 | 2027-01-01 | $2,528.27 | $2,160.76 | $367.51 | $0.00 | $398,541.80 |
| 5 | 2027-02-01 | $2,528.27 | $2,158.77 | $369.50 | $0.00 | $398,172.30 |
| 6 | 2027-03-01 | $2,528.27 | $2,156.77 | $371.50 | $0.00 | $397,800.80 |
| 7 | 2027-04-01 | $2,528.27 | $2,154.75 | $373.52 | $0.00 | $397,427.28 |
| 8 | 2027-05-01 | $2,528.27 | $2,152.73 | $375.54 | $0.00 | $397,051.74 |
| 9 | 2027-06-01 | $2,528.27 | $2,150.70 | $377.57 | $0.00 | $396,674.17 |
| 10 | 2027-07-01 | $2,528.27 | $2,148.65 | $379.62 | $0.00 | $396,294.55 |
| 11 | 2027-08-01 | $2,528.27 | $2,146.60 | $381.67 | $0.00 | $395,912.88 |
| 12 | 2027-09-01 | $2,528.27 | $2,144.53 | $383.74 | $0.00 | $395,529.14 |
| 13 | 2027-10-01 | $2,528.27 | $2,142.45 | $385.82 | $0.00 | $395,143.32 |
| 14 | 2027-11-01 | $2,528.27 | $2,140.36 | $387.91 | $0.00 | $394,755.41 |
| 15 | 2027-12-01 | $2,528.27 | $2,138.26 | $390.01 | $0.00 | $394,365.40 |
| 16 | 2028-01-01 | $2,528.27 | $2,136.15 | $392.12 | $0.00 | $393,973.28 |
| 17 | 2028-02-01 | $2,528.27 | $2,134.02 | $394.25 | $0.00 | $393,579.03 |
| 18 | 2028-03-01 | $2,528.27 | $2,131.89 | $396.38 | $0.00 | $393,182.65 |
| 19 | 2028-04-01 | $2,528.27 | $2,129.74 | $398.53 | $0.00 | $392,784.12 |
| 20 | 2028-05-01 | $2,528.27 | $2,127.58 | $400.69 | $0.00 | $392,383.43 |
| 21 | 2028-06-01 | $2,528.27 | $2,125.41 | $402.86 | $0.00 | $391,980.57 |
| 22 | 2028-07-01 | $2,528.27 | $2,123.23 | $405.04 | $0.00 | $391,575.53 |
| 23 | 2028-08-01 | $2,528.27 | $2,121.03 | $407.24 | $0.00 | $391,168.29 |
| 24 | 2028-09-01 | $2,528.27 | $2,118.83 | $409.44 | $0.00 | $390,758.85 |
| 25 | 2028-10-01 | $2,528.27 | $2,116.61 | $411.66 | $0.00 | $390,347.19 |
| 26 | 2028-11-01 | $2,528.27 | $2,114.38 | $413.89 | $0.00 | $389,933.30 |
| 27 | 2028-12-01 | $2,528.27 | $2,112.14 | $416.13 | $0.00 | $389,517.17 |
| 28 | 2029-01-01 | $2,528.27 | $2,109.88 | $418.39 | $0.00 | $389,098.78 |
| 29 | 2029-02-01 | $2,528.27 | $2,107.62 | $420.65 | $0.00 | $388,678.13 |
| 30 | 2029-03-01 | $2,528.27 | $2,105.34 | $422.93 | $0.00 | $388,255.20 |
| 31 | 2029-04-01 | $2,528.27 | $2,103.05 | $425.22 | $0.00 | $387,829.98 |
| 32 | 2029-05-01 | $2,528.27 | $2,100.75 | $427.52 | $0.00 | $387,402.46 |
| 33 | 2029-06-01 | $2,528.27 | $2,098.43 | $429.84 | $0.00 | $386,972.62 |
| 34 | 2029-07-01 | $2,528.27 | $2,096.10 | $432.17 | $0.00 | $386,540.45 |
| 35 | 2029-08-01 | $2,528.27 | $2,093.76 | $434.51 | $0.00 | $386,105.94 |
| 36 | 2029-09-01 | $2,528.27 | $2,091.41 | $436.86 | $0.00 | $385,669.08 |
| 37 | 2029-10-01 | $2,528.27 | $2,089.04 | $439.23 | $0.00 | $385,229.85 |
| 38 | 2029-11-01 | $2,528.27 | $2,086.66 | $441.61 | $0.00 | $384,788.24 |
| 39 | 2029-12-01 | $2,528.27 | $2,084.27 | $444.00 | $0.00 | $384,344.24 |
| 40 | 2030-01-01 | $2,528.27 | $2,081.86 | $446.41 | $0.00 | $383,897.83 |
| 41 | 2030-02-01 | $2,528.27 | $2,079.45 | $448.82 | $0.00 | $383,449.01 |
| 42 | 2030-03-01 | $2,528.27 | $2,077.02 | $451.25 | $0.00 | $382,997.76 |
| 43 | 2030-04-01 | $2,528.27 | $2,074.57 | $453.70 | $0.00 | $382,544.06 |
| 44 | 2030-05-01 | $2,528.27 | $2,072.11 | $456.16 | $0.00 | $382,087.90 |
| 45 | 2030-06-01 | $2,528.27 | $2,069.64 | $458.63 | $0.00 | $381,629.27 |
| 46 | 2030-07-01 | $2,528.27 | $2,067.16 | $461.11 | $0.00 | $381,168.16 |
| 47 | 2030-08-01 | $2,528.27 | $2,064.66 | $463.61 | $0.00 | $380,704.55 |
| 48 | 2030-09-01 | $2,528.27 | $2,062.15 | $466.12 | $0.00 | $380,238.43 |
| 49 | 2030-10-01 | $2,528.27 | $2,059.62 | $468.65 | $0.00 | $379,769.78 |
| 50 | 2030-11-01 | $2,528.27 | $2,057.09 | $471.18 | $0.00 | $379,298.60 |
| 51 | 2030-12-01 | $2,528.27 | $2,054.53 | $473.74 | $0.00 | $378,824.86 |
| 52 | 2031-01-01 | $2,528.27 | $2,051.97 | $476.30 | $0.00 | $378,348.56 |
| 53 | 2031-02-01 | $2,528.27 | $2,049.39 | $478.88 | $0.00 | $377,869.68 |
| 54 | 2031-03-01 | $2,528.27 | $2,046.79 | $481.48 | $0.00 | $377,388.20 |
| 55 | 2031-04-01 | $2,528.27 | $2,044.19 | $484.08 | $0.00 | $376,904.12 |
| 56 | 2031-05-01 | $2,528.27 | $2,041.56 | $486.71 | $0.00 | $376,417.41 |
| 57 | 2031-06-01 | $2,528.27 | $2,038.93 | $489.34 | $0.00 | $375,928.07 |
| 58 | 2031-07-01 | $2,528.27 | $2,036.28 | $491.99 | $0.00 | $375,436.08 |
| 59 | 2031-08-01 | $2,528.27 | $2,033.61 | $494.66 | $0.00 | $374,941.42 |
| 60 | 2031-09-01 | $2,528.27 | $2,030.93 | $497.34 | $0.00 | $374,444.08 |
| 61 | 2031-10-01 | $2,528.27 | $2,028.24 | $500.03 | $0.00 | $373,944.05 |
| 62 | 2031-11-01 | $2,528.27 | $2,025.53 | $502.74 | $0.00 | $373,441.31 |
| 63 | 2031-12-01 | $2,528.27 | $2,022.81 | $505.46 | $0.00 | $372,935.85 |
| 64 | 2032-01-01 | $2,528.27 | $2,020.07 | $508.20 | $0.00 | $372,427.65 |
| 65 | 2032-02-01 | $2,528.27 | $2,017.32 | $510.95 | $0.00 | $371,916.70 |
| 66 | 2032-03-01 | $2,528.27 | $2,014.55 | $513.72 | $0.00 | $371,402.98 |
| 67 | 2032-04-01 | $2,528.27 | $2,011.77 | $516.50 | $0.00 | $370,886.48 |
| 68 | 2032-05-01 | $2,528.27 | $2,008.97 | $519.30 | $0.00 | $370,367.18 |
| 69 | 2032-06-01 | $2,528.27 | $2,006.16 | $522.11 | $0.00 | $369,845.07 |
| 70 | 2032-07-01 | $2,528.27 | $2,003.33 | $524.94 | $0.00 | $369,320.13 |
| 71 | 2032-08-01 | $2,528.27 | $2,000.48 | $527.79 | $0.00 | $368,792.34 |
| 72 | 2032-09-01 | $2,528.27 | $1,997.63 | $530.64 | $0.00 | $368,261.70 |
| 73 | 2032-10-01 | $2,528.27 | $1,994.75 | $533.52 | $0.00 | $367,728.18 |
| 74 | 2032-11-01 | $2,528.27 | $1,991.86 | $536.41 | $0.00 | $367,191.77 |
| 75 | 2032-12-01 | $2,528.27 | $1,988.96 | $539.31 | $0.00 | $366,652.46 |
| 76 | 2033-01-01 | $2,528.27 | $1,986.03 | $542.24 | $0.00 | $366,110.22 |
| 77 | 2033-02-01 | $2,528.27 | $1,983.10 | $545.17 | $0.00 | $365,565.05 |
| 78 | 2033-03-01 | $2,528.27 | $1,980.14 | $548.13 | $0.00 | $365,016.92 |
| 79 | 2033-04-01 | $2,528.27 | $1,977.17 | $551.10 | $0.00 | $364,465.82 |
| 80 | 2033-05-01 | $2,528.27 | $1,974.19 | $554.08 | $0.00 | $363,911.74 |
| 81 | 2033-06-01 | $2,528.27 | $1,971.19 | $557.08 | $0.00 | $363,354.66 |
| 82 | 2033-07-01 | $2,528.27 | $1,968.17 | $560.10 | $0.00 | $362,794.56 |
| 83 | 2033-08-01 | $2,528.27 | $1,965.14 | $563.13 | $0.00 | $362,231.43 |
| 84 | 2033-09-01 | $2,528.27 | $1,962.09 | $566.18 | $0.00 | $361,665.25 |
| 85 | 2033-10-01 | $2,528.27 | $1,959.02 | $569.25 | $0.00 | $361,096.00 |
| 86 | 2033-11-01 | $2,528.27 | $1,955.94 | $572.33 | $0.00 | $360,523.67 |
| 87 | 2033-12-01 | $2,528.27 | $1,952.84 | $575.43 | $0.00 | $359,948.24 |
| 88 | 2034-01-01 | $2,528.27 | $1,949.72 | $578.55 | $0.00 | $359,369.69 |
| 89 | 2034-02-01 | $2,528.27 | $1,946.59 | $581.68 | $0.00 | $358,788.01 |
| 90 | 2034-03-01 | $2,528.27 | $1,943.44 | $584.83 | $0.00 | $358,203.18 |
| 91 | 2034-04-01 | $2,528.27 | $1,940.27 | $588.00 | $0.00 | $357,615.18 |
| 92 | 2034-05-01 | $2,528.27 | $1,937.08 | $591.19 | $0.00 | $357,023.99 |
| 93 | 2034-06-01 | $2,528.27 | $1,933.88 | $594.39 | $0.00 | $356,429.60 |
| 94 | 2034-07-01 | $2,528.27 | $1,930.66 | $597.61 | $0.00 | $355,831.99 |
| 95 | 2034-08-01 | $2,528.27 | $1,927.42 | $600.85 | $0.00 | $355,231.14 |
| 96 | 2034-09-01 | $2,528.27 | $1,924.17 | $604.10 | $0.00 | $354,627.04 |
| 97 | 2034-10-01 | $2,528.27 | $1,920.90 | $607.37 | $0.00 | $354,019.67 |
| 98 | 2034-11-01 | $2,528.27 | $1,917.61 | $610.66 | $0.00 | $353,409.01 |
| 99 | 2034-12-01 | $2,528.27 | $1,914.30 | $613.97 | $0.00 | $352,795.04 |
| 100 | 2035-01-01 | $2,528.27 | $1,910.97 | $617.30 | $0.00 | $352,177.74 |
| 101 | 2035-02-01 | $2,528.27 | $1,907.63 | $620.64 | $0.00 | $351,557.10 |
| 102 | 2035-03-01 | $2,528.27 | $1,904.27 | $624.00 | $0.00 | $350,933.10 |
| 103 | 2035-04-01 | $2,528.27 | $1,900.89 | $627.38 | $0.00 | $350,305.72 |
| 104 | 2035-05-01 | $2,528.27 | $1,897.49 | $630.78 | $0.00 | $349,674.94 |
| 105 | 2035-06-01 | $2,528.27 | $1,894.07 | $634.20 | $0.00 | $349,040.74 |
| 106 | 2035-07-01 | $2,528.27 | $1,890.64 | $637.63 | $0.00 | $348,403.11 |
| 107 | 2035-08-01 | $2,528.27 | $1,887.18 | $641.09 | $0.00 | $347,762.02 |
| 108 | 2035-09-01 | $2,528.27 | $1,883.71 | $644.56 | $0.00 | $347,117.46 |
| 109 | 2035-10-01 | $2,528.27 | $1,880.22 | $648.05 | $0.00 | $346,469.41 |
| 110 | 2035-11-01 | $2,528.27 | $1,876.71 | $651.56 | $0.00 | $345,817.85 |
| 111 | 2035-12-01 | $2,528.27 | $1,873.18 | $655.09 | $0.00 | $345,162.76 |
| 112 | 2036-01-01 | $2,528.27 | $1,869.63 | $658.64 | $0.00 | $344,504.12 |
| 113 | 2036-02-01 | $2,528.27 | $1,866.06 | $662.21 | $0.00 | $343,841.91 |
| 114 | 2036-03-01 | $2,528.27 | $1,862.48 | $665.79 | $0.00 | $343,176.12 |
| 115 | 2036-04-01 | $2,528.27 | $1,858.87 | $669.40 | $0.00 | $342,506.72 |
| 116 | 2036-05-01 | $2,528.27 | $1,855.24 | $673.03 | $0.00 | $341,833.69 |
| 117 | 2036-06-01 | $2,528.27 | $1,851.60 | $676.67 | $0.00 | $341,157.02 |
| 118 | 2036-07-01 | $2,528.27 | $1,847.93 | $680.34 | $0.00 | $340,476.68 |
| 119 | 2036-08-01 | $2,528.27 | $1,844.25 | $684.02 | $0.00 | $339,792.66 |
| 120 | 2036-09-01 | $2,528.27 | $1,840.54 | $687.73 | $0.00 | $339,104.93 |
| 121 | 2036-10-01 | $2,528.27 | $1,836.82 | $691.45 | $0.00 | $338,413.48 |
| 122 | 2036-11-01 | $2,528.27 | $1,833.07 | $695.20 | $0.00 | $337,718.28 |
| 123 | 2036-12-01 | $2,528.27 | $1,829.31 | $698.96 | $0.00 | $337,019.32 |
| 124 | 2037-01-01 | $2,528.27 | $1,825.52 | $702.75 | $0.00 | $336,316.57 |
| 125 | 2037-02-01 | $2,528.27 | $1,821.71 | $706.56 | $0.00 | $335,610.01 |
| 126 | 2037-03-01 | $2,528.27 | $1,817.89 | $710.38 | $0.00 | $334,899.63 |
| 127 | 2037-04-01 | $2,528.27 | $1,814.04 | $714.23 | $0.00 | $334,185.40 |
| 128 | 2037-05-01 | $2,528.27 | $1,810.17 | $718.10 | $0.00 | $333,467.30 |
| 129 | 2037-06-01 | $2,528.27 | $1,806.28 | $721.99 | $0.00 | $332,745.31 |
| 130 | 2037-07-01 | $2,528.27 | $1,802.37 | $725.90 | $0.00 | $332,019.41 |
| 131 | 2037-08-01 | $2,528.27 | $1,798.44 | $729.83 | $0.00 | $331,289.58 |
| 132 | 2037-09-01 | $2,528.27 | $1,794.49 | $733.78 | $0.00 | $330,555.80 |
| 133 | 2037-10-01 | $2,528.27 | $1,790.51 | $737.76 | $0.00 | $329,818.04 |
| 134 | 2037-11-01 | $2,528.27 | $1,786.51 | $741.76 | $0.00 | $329,076.28 |
| 135 | 2037-12-01 | $2,528.27 | $1,782.50 | $745.77 | $0.00 | $328,330.51 |
| 136 | 2038-01-01 | $2,528.27 | $1,778.46 | $749.81 | $0.00 | $327,580.70 |
| 137 | 2038-02-01 | $2,528.27 | $1,774.40 | $753.87 | $0.00 | $326,826.83 |
| 138 | 2038-03-01 | $2,528.27 | $1,770.31 | $757.96 | $0.00 | $326,068.87 |
| 139 | 2038-04-01 | $2,528.27 | $1,766.21 | $762.06 | $0.00 | $325,306.81 |
| 140 | 2038-05-01 | $2,528.27 | $1,762.08 | $766.19 | $0.00 | $324,540.62 |
| 141 | 2038-06-01 | $2,528.27 | $1,757.93 | $770.34 | $0.00 | $323,770.28 |
| 142 | 2038-07-01 | $2,528.27 | $1,753.76 | $774.51 | $0.00 | $322,995.77 |
| 143 | 2038-08-01 | $2,528.27 | $1,749.56 | $778.71 | $0.00 | $322,217.06 |
| 144 | 2038-09-01 | $2,528.27 | $1,745.34 | $782.93 | $0.00 | $321,434.13 |
| 145 | 2038-10-01 | $2,528.27 | $1,741.10 | $787.17 | $0.00 | $320,646.96 |
| 146 | 2038-11-01 | $2,528.27 | $1,736.84 | $791.43 | $0.00 | $319,855.53 |
| 147 | 2038-12-01 | $2,528.27 | $1,732.55 | $795.72 | $0.00 | $319,059.81 |
| 148 | 2039-01-01 | $2,528.27 | $1,728.24 | $800.03 | $0.00 | $318,259.78 |
| 149 | 2039-02-01 | $2,528.27 | $1,723.91 | $804.36 | $0.00 | $317,455.42 |
| 150 | 2039-03-01 | $2,528.27 | $1,719.55 | $808.72 | $0.00 | $316,646.70 |
| 151 | 2039-04-01 | $2,528.27 | $1,715.17 | $813.10 | $0.00 | $315,833.60 |
| 152 | 2039-05-01 | $2,528.27 | $1,710.77 | $817.50 | $0.00 | $315,016.10 |
| 153 | 2039-06-01 | $2,528.27 | $1,706.34 | $821.93 | $0.00 | $314,194.17 |
| 154 | 2039-07-01 | $2,528.27 | $1,701.89 | $826.38 | $0.00 | $313,367.79 |
| 155 | 2039-08-01 | $2,528.27 | $1,697.41 | $830.86 | $0.00 | $312,536.93 |
| 156 | 2039-09-01 | $2,528.27 | $1,692.91 | $835.36 | $0.00 | $311,701.57 |
| 157 | 2039-10-01 | $2,528.27 | $1,688.38 | $839.89 | $0.00 | $310,861.68 |
| 158 | 2039-11-01 | $2,528.27 | $1,683.83 | $844.44 | $0.00 | $310,017.24 |
| 159 | 2039-12-01 | $2,528.27 | $1,679.26 | $849.01 | $0.00 | $309,168.23 |
| 160 | 2040-01-01 | $2,528.27 | $1,674.66 | $853.61 | $0.00 | $308,314.62 |
| 161 | 2040-02-01 | $2,528.27 | $1,670.04 | $858.23 | $0.00 | $307,456.39 |
| 162 | 2040-03-01 | $2,528.27 | $1,665.39 | $862.88 | $0.00 | $306,593.51 |
| 163 | 2040-04-01 | $2,528.27 | $1,660.71 | $867.56 | $0.00 | $305,725.95 |
| 164 | 2040-05-01 | $2,528.27 | $1,656.02 | $872.25 | $0.00 | $304,853.70 |
| 165 | 2040-06-01 | $2,528.27 | $1,651.29 | $876.98 | $0.00 | $303,976.72 |
| 166 | 2040-07-01 | $2,528.27 | $1,646.54 | $881.73 | $0.00 | $303,094.99 |
| 167 | 2040-08-01 | $2,528.27 | $1,641.76 | $886.51 | $0.00 | $302,208.48 |
| 168 | 2040-09-01 | $2,528.27 | $1,636.96 | $891.31 | $0.00 | $301,317.17 |
| 169 | 2040-10-01 | $2,528.27 | $1,632.13 | $896.14 | $0.00 | $300,421.03 |
| 170 | 2040-11-01 | $2,528.27 | $1,627.28 | $900.99 | $0.00 | $299,520.04 |
| 171 | 2040-12-01 | $2,528.27 | $1,622.40 | $905.87 | $0.00 | $298,614.17 |
| 172 | 2041-01-01 | $2,528.27 | $1,617.49 | $910.78 | $0.00 | $297,703.39 |
| 173 | 2041-02-01 | $2,528.27 | $1,612.56 | $915.71 | $0.00 | $296,787.68 |
| 174 | 2041-03-01 | $2,528.27 | $1,607.60 | $920.67 | $0.00 | $295,867.01 |
| 175 | 2041-04-01 | $2,528.27 | $1,602.61 | $925.66 | $0.00 | $294,941.35 |
| 176 | 2041-05-01 | $2,528.27 | $1,597.60 | $930.67 | $0.00 | $294,010.68 |
| 177 | 2041-06-01 | $2,528.27 | $1,592.56 | $935.71 | $0.00 | $293,074.97 |
| 178 | 2041-07-01 | $2,528.27 | $1,587.49 | $940.78 | $0.00 | $292,134.19 |
| 179 | 2041-08-01 | $2,528.27 | $1,582.39 | $945.88 | $0.00 | $291,188.31 |
| 180 | 2041-09-01 | $2,528.27 | $1,577.27 | $951.00 | $0.00 | $290,237.31 |
Showing first 180 months. Click "Show all" to view the full schedule.
How the calculator works
- Standard payment (P&I): Computed using the fixed-rate mortgage formula. At a 0% note rate, payment is principal divided by months.
- Monthly iteration: For each month we compute interest as current balance × (note rate/12). The remainder of the standard payment reduces principal.
- Extra principal: One-time extras apply only on their specified month number. Recurring extras apply every month from Start Month # to End Month # (inclusive). Multiple entries of both types are supported and summed.
- Final month adjustment: If planned principal reduction (regular + extras) exceeds the remaining balance, we reduce extras first to avoid overpayment.
- Rounding: Each month's interest, principal, payment, and balance are rounded to cents to mimic statements.
- Comparisons: We compute a baseline schedule with no extras to show time and interest saved.
This tool is for planning/education only and does not constitute financial advice.
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