£350,000 mortgage: monthly payments

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

Borrowing £350,000? At 4.5% over 25 years you would pay £1,945.41 a month. Every rate and term is compared below.

At 4.5% over 25 years
£1,945 a month
Total interest
£233,623
Income needed (4.5x)
£77,778
Overpay £180 a month
save £37,873
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Monthly payment£1,945.41a month

Borrowing £350,000 (90% loan to value). Total repaid £583,623, of which £233,623 is interest.

A £350,000 repayment mortgage at 4.5% over 25 years costs £1,945.41 a month. You would repay £583,623 in total, of which £233,623 is interest.

Monthly payments on £350,000 by rate and term

Rate 20 years 25 years 30 years 35 years
3.5% £2,030 £1,752 £1,572 £1,447
4% £2,121 £1,847 £1,671 £1,550
4.5% £2,214 £1,945 £1,773 £1,656
5% £2,310 £2,046 £1,879 £1,766
5.5% £2,408 £2,149 £1,987 £1,880
6% £2,508 £2,255 £2,098 £1,996

How £350,000 is paid off over 25 years

£0k£50k£100k£150k£200k£250k£300k£350k0y5y10y15y20y25y
  • 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 £350,000 by term

  1. 20 years£181,425 (£2,214 a month)
  2. 25 years£233,623 (£1,945 a month)
  3. 30 years£288,424 (£1,773 a month)
  4. 35 years£345,688 (£1,656 a month)

A longer term lowers the monthly payment but adds interest. Stretching from 25 to 35 years saves £289 a month and costs £112,065 more overall.

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Questions people ask

What are the monthly payments on a £350,000 mortgage?

£1,945.41 a month on a 25 year repayment mortgage at 4.5%. At 4% it is £1,847.43 and at 5% it is £2,046.07. Interest only at 4.5% would be £1,312.50.

What salary do I need for a £350,000 mortgage?

At the usual 4.5 times income, about £77,778 for a single buyer or a joint household income. Some lenders go to 5 or 5.5 times, which would need around £63,636.

How much does overpaying a £350,000 mortgage save?

Paying £180 extra a month at 4.5% clears it about 3 years 7 months early and saves roughly £37,873 in interest. Check your lender's overpayment limit, often 10% a year on fixed deals.