You could borrow£90k£80k–£110k depending on the lender
Home price, 10% deposit£100k£10k deposit
Monthly payment£5045.37% 2-year fix, 30 years
3-bed houses in reach0%of districts in England & Wales
On a £20,000 salary most lenders would lend around £90,000, four and a half times your income. A cautious lender, or one weighing up children and car finance, might stop nearer £80,000; a few go to £110,000 for higher earners.
With a 10% deposit of £10,000 that buys a home for about £100,000, at about £504 a month at today's average 2-year fixed rate of 5.37%. If rates were two points higher when you remortgage, it would be about £621. As a first-time buyer in England you would pay no stamp duty at this price.
That price buys a typical 3-bedroom house in 8 of 2,219 postcode districts, from 5% of districts in North East to 0% in West Midlands.
Questions
How much can I borrow on a £20,000 salary?
Most lenders lend about 4.5 times income, so around £90,000 on £20,000. Cautious lenders, or households with children or other loans, are nearer 4 times (£80,000); some lend up to 5.5 times (£110,000) to higher earners.
Can I get a £100,000 mortgage on £20,000?
Possibly: it is 5.0 times income, which some lenders offer, mostly to higher earners and some professions, if your outgoings are low.
What house price can I afford on £20,000?
With a 10% deposit, about £100,000: a £10,000 deposit plus a £90,000 mortgage. With 5% down it is about £95,000.
What would the monthly payments be?
About £504 a month on a £90,000 mortgage over 30 years at 5.37%, the Bank of England's average 2-year fixed rate at 90% loan-to-value (Sep 2026). If rates rose 2 points it would be about £621.
Where can I buy a house on £20,000?
A typical 3-bedroom house sells within £100,000 in 8 of 2219 postcode districts in England and Wales (0%), most of all in North East (5% of districts), including Peterlee, Shildon.
A guide, not mortgage advice: lenders decide on your full circumstances, credit history and outgoings. Rates: Bank of England quoted household interest rates (Sep 2026). Prices: HM Land Registry sales in the last five years matched to the EPC register, in today's money.