£270,000 mortgage: monthly payments

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

Borrowing £270,000? At 4.5% over 25 years you would pay £1,500.75 a month. Every rate and term is compared below.

At 4.5% over 25 years
£1,501 a month
Total interest
£180,225
Income needed (4.5x)
£60,000
Overpay £140 a month
save £29,418
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Monthly payment£1,500.75a month

Borrowing £270,000 (90% loan to value). Total repaid £450,225, of which £180,225 is interest.

A £270,000 repayment mortgage at 4.5% over 25 years costs £1,500.75 a month. You would repay £450,225 in total, of which £180,225 is interest.

Monthly payments on £270,000 by rate and term

Rate 20 years 25 years 30 years 35 years
3.5% £1,566 £1,352 £1,212 £1,116
4% £1,636 £1,425 £1,289 £1,195
4.5% £1,708 £1,501 £1,368 £1,278
5% £1,782 £1,578 £1,449 £1,363
5.5% £1,857 £1,658 £1,533 £1,450
6% £1,934 £1,740 £1,619 £1,540

How £270,000 is paid off over 25 years

£0k£50k£100k£150k£200k£250k£300k0y5y10y15y20y25y
  • 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 £270,000 by term

  1. 20 years£139,956 (£1,708 a month)
  2. 25 years£180,225 (£1,501 a month)
  3. 30 years£222,498 (£1,368 a month)
  4. 35 years£266,672 (£1,278 a month)

A longer term lowers the monthly payment but adds interest. Stretching from 25 to 35 years saves £223 a month and costs £86,447 more overall.

Keep going

Questions people ask

What are the monthly payments on a £270,000 mortgage?

£1,500.75 a month on a 25 year repayment mortgage at 4.5%. At 4% it is £1,425.16 and at 5% it is £1,578.39. Interest only at 4.5% would be £1,012.50.

What salary do I need for a £270,000 mortgage?

At the usual 4.5 times income, about £60,000 for a single buyer or a joint household income. Some lenders go to 5 or 5.5 times, which would need around £49,091.

How much does overpaying a £270,000 mortgage save?

Paying £140 extra a month at 4.5% clears it about 3 years 7 months early and saves roughly £29,418 in interest. Check your lender's overpayment limit, often 10% a year on fixed deals.