Mortgage Calculator

Work out your repayments, total interest, LTV and payoff date — then model overpayments, stamp duty, fees, affordability and refinancing in one place.

Mortgage details
Property, deposit, rate and term.
£240,000
Overpayments
See how much interest and time you can save.
Get this breakdown emailed
Optional — nothing is stored or gated.
Monthly payment
£1,334.00
Total interest
£160,199
LTV
80.0%
Payoff date
Aug 2051
Repayment breakdown
Where every £400,199 of your repayments goes.
Remaining balance over time
Principal vs interest per payment
Total repayment split
Low risk — this mortgage looks comfortable
Risk assessment and actions based on your numbers.
low risk
  • Your LTV sits in a competitive band, so you should qualify for mainstream rates.
  • Repayments take 27% of monthly income, within a manageable range.
  • Even a small regular overpayment shortens the term — try adding 5% to your payment to see the effect.
Amortisation schedule
Payment-by-payment interest, principal and balance.

Total interest

£160,199.38

Total principal

£240,000.00

Extra payments

£0.00

Estimated payoff

Sep 2051

300 payments

Savings vs no extra payments

Add an extra monthly payment or lump sum to see what you'd save.

Remaining balance £240,000.00£0.00 · month 300
#PaymentInterestPrincipalExtraBalance
1£1,334.00£900.00£434.00£239,566.00
2£1,334.00£898.37£435.63£239,130.38
3£1,334.00£896.74£437.26£238,693.12
4£1,334.00£895.10£438.90£238,254.22
5£1,334.00£893.45£440.54£237,813.67
6£1,334.00£891.80£442.20£237,371.48
7£1,334.00£890.14£443.85£236,927.62
8£1,334.00£888.48£445.52£236,482.10
9£1,334.00£886.81£447.19£236,034.91
10£1,334.00£885.13£448.87£235,586.05
11£1,334.00£883.45£450.55£235,135.50
12£1,334.00£881.76£452.24£234,683.26
13£1,334.00£880.06£453.94£234,229.32
14£1,334.00£878.36£455.64£233,773.68
15£1,334.00£876.65£457.35£233,316.34
16£1,334.00£874.94£459.06£232,857.27
17£1,334.00£873.21£460.78£232,396.49
18£1,334.00£871.49£462.51£231,933.98
19£1,334.00£869.75£464.25£231,469.73
20£1,334.00£868.01£465.99£231,003.75
21£1,334.00£866.26£467.73£230,536.01
22£1,334.00£864.51£469.49£230,066.53
23£1,334.00£862.75£471.25£229,595.28
24£1,334.00£860.98£473.02£229,122.26
Showing first 24 of 300.
Mortgage affordability
Based on £60,000 household income, a 4.5× multiple and a 35% payment cap.
Max borrowing
£270,000
Max property price
£330,000
Monthly payment at max
£1,500.75
Share of income
30.0%
Limited by
income multiple