Mortgage Repayments
Mortgage Repayments on £600,000 Over 20 Years
Monthly repayments on a £600,000 UK mortgage over 20 years at a representative 4.5% interest rate are £3,795.90. Total cost over the term: £911,015.10, of which £311,015.10 is interest.
Monthly
£3,795.90
Total paid
£911,015.10
Interest
£311,015.10
Monthly Payment at Different Rates
UK mortgage rates change frequently. See how the monthly cost varies at typical fixed-rate levels:
| Interest rate | Monthly | Total cost | Total interest |
|---|---|---|---|
| 3.50% | £3,479.76 | £835,141.99 | £235,141.99 |
| 4.00% | £3,635.88 | £872,611.67 | £272,611.67 |
| 4.50% | £3,795.90 | £911,015.10 | £311,015.10 |
| 5.00% | £3,959.73 | £950,336.26 | £350,336.26 |
| 5.50% | £4,127.32 | £990,557.72 | £390,557.72 |
| 6.00% | £4,298.59 | £1,031,660.72 | £431,660.72 |
Highlighted: representative current rate (4.5%). Your actual rate depends on LTV, credit score, term and lender.
Same Loan, Different Terms
Try the full calculator
Adjust loan amount, interest rate, term and overpayments for a personalised projection:
Similar Loan Amounts
FAQs
How much is the monthly payment on a £600,000 mortgage over 20 years?
Monthly repayments on £600,000 over 20 years at a representative 4.5% interest rate are £3,795.90. Over the full term you would pay £911,015.10, of which £311,015.10 is interest.
How much interest do I pay in total?
On a £600,000 mortgage over 20 years at 4.5%, total interest comes to £311,015.10 — that's 51.8% of the original loan amount on top.
Can I overpay to reduce interest?
Yes — most UK mortgages allow overpayments of 10% per year without early-repayment charges. Even small regular overpayments can save thousands. For example, paying £200 extra per month on this mortgage could shorten the term by several years.
What deposit would I need for a £600,000 mortgage?
Most UK lenders require at least 5% deposit (95% LTV). A 10% deposit (90% LTV) typically unlocks better rates. For a property where the mortgage is £600,000, you'd need roughly £31,579 (5% deposit) to £66,667 (10% deposit) on top.
Related
Disclaimer: Repayment figures assume an interest-only flat rate over the term. Your actual mortgage may include rate changes (after fixed period), product fees, and varying overpayments. Always get a Decision in Principle from a lender or broker for exact figures.