£1,000,000 mortgage: monthly payments

By The PocketSums team. Updated 30 September 2026. How we calculate

Borrowing £1,000,000? At 4.5% over 25 years you would pay £5,558.32 a month. Every rate and term is compared below.

At 4.5% over 25 years
£5,558 a month
Total interest
£667,496
Income needed (4.5x)
£222,222
Overpay £500 a month
save £105,707
£925,000 mortgage£950,000 mortgage£975,000 mortgage
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Monthly payment£5,558.32a month

Borrowing £1,000,000 (90% loan to value). Total repaid £1,667,496, of which £667,496 is interest.

A £1,000,000 repayment mortgage at 4.5% over 25 years costs £5,558.32 a month. You would repay £1,667,496 in total, of which £667,496 is interest.

Monthly payments on £1,000,000 by rate and term

Rate 20 years 25 years 30 years 35 years
3.5% £5,800 £5,006 £4,490 £4,133
4% £6,060 £5,278 £4,774 £4,428
4.5% £6,326 £5,558 £5,067 £4,733
5% £6,600 £5,846 £5,368 £5,047
5.5% £6,879 £6,141 £5,678 £5,370
6% £7,164 £6,443 £5,996 £5,702

How £1,000,000 is paid off over 25 years

£0k£50k£100k£150k£200k£250k£300k£350k£400k£450k£500k£550k£600k£650k£700k£750k£800k£850k£900k£950k£1m0y5y10y15y20y25y
  • Balance still owed
  • Interest paid so far
At 4.5%. Interest is heaviest in the early years, when the balance is highest.

Total interest on £1,000,000 by term

  1. 20 years£518,358 (£6,326 a month)
  2. 25 years£667,496 (£5,558 a month)
  3. 30 years£824,066 (£5,067 a month)
  4. 35 years£987,679 (£4,733 a month)

A longer term lowers the monthly payment but adds interest. Stretching from 25 to 35 years saves £826 a month and costs £320,183 more overall.

Keep going

Questions people ask

What are the monthly payments on a £1,000,000 mortgage?

£5,558.32 a month on a 25 year repayment mortgage at 4.5%. At 4% it is £5,278.37 and at 5% it is £5,845.90. Interest only at 4.5% would be £3,750.00.

What salary do I need for a £1,000,000 mortgage?

At the usual 4.5 times income, about £222,222 for a single buyer or a joint household income. Some lenders go to 5 or 5.5 times, which would need around £181,818.

How much does overpaying a £1,000,000 mortgage save?

Paying £500 extra a month at 4.5% clears it about 3 years 6 months early and saves roughly £105,707 in interest. Check your lender's overpayment limit, often 10% a year on fixed deals.