Loan and mortgage calculator
Monthly payment, total interest, and the full year by year schedule.
Monthly payment1,535.22
Total repaid460,565.62
Of which interest210,565.62
Interest as a share of what you borrowed84%
The monthly payment is not the amount divided by the months. Early payments are mostly interest, which is why paying a little extra at the start saves so much more than the same amount later.
| Year | Paid so far | Interest so far | Still owed |
|---|---|---|---|
| 1 | 18,422.62 | 13,630.39 | 245,207.77 |
| 2 | 36,845.25 | 26,990.47 | 240,145.22 |
| 3 | 55,267.87 | 40,064.97 | 234,797.10 |
| 4 | 73,690.50 | 52,837.80 | 229,147.30 |
| 5 | 92,113.12 | 65,291.94 | 223,178.81 |
| 6 | 110,535.75 | 77,409.40 | 216,873.66 |
| 7 | 128,958.37 | 89,171.21 | 210,212.84 |
| 8 | 147,381.00 | 100,557.29 | 203,176.30 |
| 9 | 165,803.62 | 111,546.46 | 195,742.84 |
| 10 | 184,226.25 | 122,116.32 | 187,890.08 |
| 11 | 202,648.87 | 132,243.23 | 179,594.36 |
| 12 | 221,071.50 | 141,902.19 | 170,830.69 |
| 13 | 239,494.12 | 151,066.81 | 161,572.69 |
| 14 | 257,916.75 | 159,709.21 | 151,792.46 |
| 15 | 276,339.37 | 167,799.92 | 141,460.55 |
| 16 | 294,762.00 | 175,307.84 | 130,545.84 |
| 17 | 313,184.62 | 182,200.08 | 119,015.46 |
| 18 | 331,607.25 | 188,441.91 | 106,834.67 |
| 19 | 350,029.87 | 193,996.66 | 93,966.79 |
| 20 | 368,452.50 | 198,825.55 | 80,373.05 |
| 21 | 386,875.12 | 202,887.65 | 66,012.53 |
| 22 | 405,297.74 | 206,139.70 | 50,841.96 |
| 23 | 423,720.37 | 208,536.02 | 34,815.65 |
| 24 | 442,142.99 | 210,028.32 | 17,885.32 |
| 25 | 460,565.62 | 210,565.62 | 0.00 |
Questions
- Why is the payment not the amount divided by the months?
- Because interest is charged on what is still owed, and that changes every month. The payment is fixed but its composition is not: early on it is mostly interest, and only later is it mostly repaying what you borrowed.
- Why does paying extra early save so much more than paying extra later?
- Because every pound off the balance early removes the interest that pound would have generated for the rest of the term. The same payment in the final year removes almost no future interest, because there is almost none left to remove.
- Does this include fees, insurance or tax?
- No. It is the pure loan repayment. Arrangement fees, buildings insurance and property tax are real and are not in this number, so treat it as a floor rather than the actual monthly cost.
- Is my data sent anywhere?
- No. It is all worked out in your browser, which matters given what people put into a mortgage calculator.