UK Mortgage
£500,000 mortgage at 4.5% over 30 years
A £500,000 repayment mortgage with a 4.5% fixed interest rate spread over 30 years would cost approximately the amounts shown below. Figures are illustrative — your actual rate depends on loan-to-value, credit score and lender.
Monthly repayment
£2,533.43
Total interest
£412,033.56
Total repaid
£912,033.56
Based on the standard amortisation formula. Excludes arrangement fees, valuation fees, stamp duty and insurance.
What does a £500,000 mortgage cost per month?
At 4.5% APR over a 30-year term, the monthly repayment on a £500,000 mortgage is about £2,533.43. Over the life of the loan you'd repay £912,033.56 in total — of which £412,033.56 is interest.
The same loan over 25 years would be cheaper overall but higher each month. Stretching the term reduces the monthly cost but increases lifetime interest.
How to lower the repayment
- Increase your deposit to reduce the loan amount.
- Improve your credit score before applying — even a 0.25% rate cut saves thousands.
- Compare whole-of-market brokers, not just your high-street bank.
- Consider overpayments — most UK lenders allow 10% per year fee-free.