Mortgage on a £30,000 Salary in 2026: How Much Can You Borrow?

The Income Multiple Starting Point

Most UK mortgage lenders cap borrowing at roughly 4.5 times gross annual income for standard residential mortgages. On a £30,000 salary:

£30,000 x 4.5 = £135,000

A handful of lenders extend to 5x, or even 5.5x for certain professional schemes or strong applicants with a substantial deposit, which would push the maximum to £150,000-£165,000. But the income multiple is only a starting ceiling — every lender then runs a detailed affordability assessment based on your actual outgoings.

Take-Home Pay on £30,000 in 2026/27

• Personal Allowance: £12,570 tax-free
• Income tax: 20% x (£30,000 - £12,570) = £3,486
• Employee NI: 8% x (£30,000 - £12,570) = £1,394
• Net take-home: £25,120/yr (£2,093/month)

Lenders use this net figure — alongside your outgoings — in the affordability "stress test," which checks whether you could still cover mortgage payments if interest rates rose by several percentage points above the rate you're offered.

A Worked Example

Priya earns £30,000, has saved a £15,000 deposit and has no car finance or significant credit card debt. She has a Plan 2 student loan.

• Maximum loan at 4.5x income: £135,000
• Add her £15,000 deposit: target purchase price around £150,000
• Student loan repayment: 9% x (£30,000 - £29,385) = £55/yr, a negligible drag on affordability at this income level, since £30,000 is only just above the £29,385 Plan 2 threshold
• On a £150,000 mortgage over 30 years at a representative 4.5% rate, monthly repayments come to roughly £760 — comfortably within Priya's £2,093 monthly take-home, leaving room for other essential outgoings

What Moves the Number

Several factors shift the maximum loan up or down from the baseline 4.5x calculation:

• Existing debt: car finance, personal loans and credit card balances all reduce disposable income in the lender's affordability model, cutting the maximum loan even at an unchanged salary
• Deposit size: a larger deposit doesn't increase the income multiple itself, but it reduces the loan-to-value ratio, often unlocking better interest rates that improve affordability at the margin
• Credit history: missed payments, high credit utilisation or a thin credit file can restrict which lenders will offer the full 4.5x-5x range
• Dependants and childcare costs: lenders factor in typical living costs, including an allowance for children, which reduces the assessed disposable income for affordability purposes
• Employment type: those on a probation period, zero-hours contracts, or newly self-employed (typically requiring 2-3 years of accounts) may find fewer lenders willing to offer the full multiple

First-Time Buyer Support at This Income Level

At £30,000, several schemes are worth exploring alongside a standard mortgage:

• First-time buyer stamp duty relief: no Stamp Duty Land Tax is due on properties up to £300,000 for first-time buyers in England and Northern Ireland, which matters directly at this budget level
• Lifetime ISA: saving into a LISA ahead of a purchase adds a 25% government bonus (up to £1,000 a year on £4,000 saved) toward a first home costing up to £450,000
• Mortgage Guarantee Scheme: supports 95% loan-to-value mortgages, useful for buyers who can only manage a 5% deposit