Mortgage Salary Calculator UK 2026

This is one of the most common mortgage questions in the UK. The answer depends on which lender you use, because each one calculates affordability slightly differently.

As a general rule, most UK lenders offer 4 to 4.5 times your annual income. Some specialist or professional lenders stretch to 5, 5.5, or even 6 times income for certain applicants.

So the minimum salary for a £300k mortgage ranges from roughly £50,000 to £75,000 depending on the lender and your circumstances. With a joint application, you can combine both salaries — for example, two earners on £30,000 each could potentially borrow £270,000–£330,000.

Use our free mortgage eligibility calculator to see exactly how much you could borrow based on your income.

Your monthly payments on a £300k mortgage depend on two things: the interest rate and the mortgage term (how many years you borrow for).

At today's typical rates of 4–5%, a £300k mortgage over 25 years would cost roughly £1,584–£1,754 per month. Use our mortgage estimator to calculate your exact figure.

Yes, you can get a mortgage on a £25,000 salary. However, your borrowing will be limited:

• At 4× income: You could borrow up to £100,000
• At 4.5× income: Up to £112,500
• At 5.5× income (specialist lenders): Up to £137,500

This means you'd need a decent deposit to make up the difference. For a £200,000 property with a £100,000 mortgage, you'd need a £100,000 deposit (50% LTV). More realistically, you'd be looking at properties in the £120,000–£170,000 range with a 10–20% deposit.

Government schemes like Shared Ownership can help — you buy a 25–75% share and pay reduced rent on the rest.

On a £30,000 salary, you could typically borrow:

• At 4× income: £120,000
• At 4.5× income: £135,000
• At 5.5× income: £165,000

With a 10% deposit of £15,000–£18,000, you could be looking at properties up to £150,000–£183,000. This is very achievable in many parts of the UK — especially in the North East, Midlands, Yorkshire, and parts of Wales and Scotland.

Check our guide to the best areas for first-time buyers to see where your budget goes furthest.

A £40,000 salary gives you significantly more borrowing power:

• At 4× income: £160,000
• At 4.5× income: £180,000
• At 5× income: £200,000
• At 5.5× income: £220,000

With a 10% deposit, you could be looking at properties worth £178,000–£244,000. This opens up most of the UK housing market outside London and the South East.

If you're buying with a partner earning a similar amount, your combined borrowing could reach £320,000–£440,000 — enough for a £400,000+ property with a modest deposit.

This depends on your deposit. If you have a 10% deposit (£30,000), you'd need a mortgage of £270,000. If you have a 20% deposit (£60,000), you'd only need £240,000.

So to buy a £300k house, you'd typically need to earn between £41,000 and £63,000 depending on your deposit and the lender. A joint income can make this much more achievable.

Yes, but it depends on the lender. Most UK lenders have a maximum age at the end of the mortgage term — typically 70–80 years old. At 55, a 25-year mortgage would end at age 80, which some lenders will accept.

However, you may need to demonstrate how you'll afford payments into retirement — for example, through pension income, investments, or downsizing plans.

Some options include:

• Standard mortgage with a retirement plan: Show pension income will cover payments
• Retirement interest-only (RIO) mortgage: Pay interest only, repay capital when you sell or pass away
• Shorter term: A 15–20 year term may be easier to get approved

A broker can identify which lenders have the most flexible age policies for your situation.

There are several strategies to shorten your mortgage term significantly:

• Make regular overpayments: Even £200/month extra on a £200,000 mortgage at 4.5% could save you 8+ years and £40,000+ in interest. Use our overpayment calculator to see your savings.
• Remortgage to a shorter term: When your deal ends, remortgage onto a 20-year term instead of 30
• Use lump sums wisely: Put bonuses, inheritance, or savings against the balance
• Switch to fortnightly payments: Some lenders allow this — you make 26 half-payments per year (equivalent to 13 monthly payments)

Most lenders allow overpayments of up to 10% per year penalty-free. See our full mortgage overpayments guide for details.

Here's a quick reference showing how much you could borrow at different salary levels:

Remember: these are theoretical maximums. Your actual borrowing depends on credit history, existing debts, and monthly outgoings. A free consultation with our advisors will give you an accurate figure.