£150,000 mortgage: monthly payments

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

Borrowing £150,000? At 4.5% over 25 years you would pay £833.75 a month. Every rate and term is compared below.

At 4.5% over 25 years
£834 a month
Total interest
£100,125
Income needed (4.5x)
£33,333
Overpay £80 a month
save £16,728
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Monthly payment£833.75a month

Borrowing £150,000 (91% loan to value). Total repaid £250,125, of which £100,125 is interest.

A £150,000 repayment mortgage at 4.5% over 25 years costs £833.75 a month. You would repay £250,125 in total, of which £100,125 is interest.

Monthly payments on £150,000 by rate and term

Rate 20 years 25 years 30 years 35 years
3.5% £870 £751 £674 £620
4% £909 £792 £716 £664
4.5% £949 £834 £760 £710
5% £990 £877 £805 £757
5.5% £1,032 £921 £852 £806
6% £1,075 £966 £899 £855

How £150,000 is paid off over 25 years

£0k£50k£100k£150k0y5y10y15y20y25y
  • 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 £150,000 by term

  1. 20 years£77,753 (£949 a month)
  2. 25 years£100,125 (£834 a month)
  3. 30 years£123,611 (£760 a month)
  4. 35 years£148,154 (£710 a month)

A longer term lowers the monthly payment but adds interest. Stretching from 25 to 35 years saves £124 a month and costs £48,029 more overall.

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Questions people ask

What are the monthly payments on a £150,000 mortgage?

£833.75 a month on a 25 year repayment mortgage at 4.5%. At 4% it is £791.76 and at 5% it is £876.89. Interest only at 4.5% would be £562.50.

What salary do I need for a £150,000 mortgage?

At the usual 4.5 times income, about £33,333 for a single buyer or a joint household income. Some lenders go to 5 or 5.5 times, which would need around £27,273.

How much does overpaying a £150,000 mortgage save?

Paying £80 extra a month at 4.5% clears it about 3 years 8 months early and saves roughly £16,728 in interest. Check your lender's overpayment limit, often 10% a year on fixed deals.