How much can I borrow as a first time buyer?

The amount you can borrow as a first time buyer depends primarily on your income. Most UK mortgage lenders use an income multiple of 4 to 4.5 times your gross annual salary. If you earn 30,000 a year, you could typically borrow between 120,000 and 135,000. Joint applicants can combine their incomes, so two people each earning 30,000 could borrow up to 270,000.

Some lenders go higher. A handful of specialist lenders and building societies offer 5 to 5.5 times income for borrowers who meet strict criteria. These higher multiples are usually reserved for people earning above 50,000, those in professional roles, or buyers with larger deposits of 25% or more.

Income multiples are only one part of the picture. Lenders also carry out a detailed affordability assessment that looks at your outgoings, debts and living costs. Two people earning the same salary can receive very different mortgage offers depending on their financial commitments. If you want to understand exactly where you stand, a first time buyer mortgage advisor can search across the whole market to find lenders who will offer you the most.

Your income sets the starting point, but lenders look at several other factors before deciding how much to lend you. Understanding these can help you prepare your application and potentially increase your borrowing power.

• Existing debts: Credit card balances, personal loans, car finance and student loan repayments all reduce the amount lenders will offer. Paying down debts before applying can make a significant difference.
• Monthly outgoings: Lenders review your regular spending on things like childcare, commuting, insurance and subscriptions. They use these to calculate how much you can realistically afford each month.
• Credit history: A strong credit score shows lenders you manage money well. Missed payments, defaults or CCJs in the last six years can limit your options, though specialist lenders for first time buyers with bad credit do exist.
• Deposit size: A larger deposit means you need to borrow less and gives lenders more security. This typically unlocks better interest rates and may let you access higher income multiples. Read more about how much deposit you need as a first time buyer.
• Employment type: Permanent employees with a stable income history are viewed most favourably. Self-employed applicants, contractors and those on probation may face stricter requirements or need to provide additional documentation.
• Property type: Non-standard construction, ex-local authority flats or properties above commercial premises can limit which lenders will consider your application.

Lenders use two main tests to decide how much they will lend you. The first is the income multiple, which caps borrowing at a set ratio of your salary, usually 4 to 4.5 times. The second is a detailed affordability assessment that digs into your actual finances.

During the affordability assessment, lenders calculate your net monthly income after tax, then subtract your committed spending: debt repayments, bills, childcare, travel costs and general living expenses. The amount left over determines what monthly mortgage payment you can sustain. This is why two people on the same salary can be offered very different amounts.

Lenders also apply a stress test. They check whether you could still afford your mortgage if interest rates rose by 2 to 3 percentage points above the rate you are applying for. This is a regulatory requirement designed to protect borrowers from future rate increases. If you are looking at a fixed-rate deal, the stress test usually applies to the rate you would revert to when the fixed period ends.

Yes, a larger deposit can increase how much you are able to borrow. A bigger deposit reduces your loan-to-value (LTV) ratio, which is the percentage of the property price you need to borrow. Lenders see lower LTV as lower risk, which can unlock better rates and higher lending limits.

With a 5% deposit, you are borrowing at 95% LTV. At this level, lender choice is more limited and income multiples tend to be conservative, typically around 4 to 4.25 times income. Move to a 10% deposit (90% LTV) and you open up significantly more options. At 15% to 20% deposit, you access the most competitive rates and some lenders will stretch to 4.5 or even 5 times income.

If saving a larger deposit feels out of reach, 95% mortgages for first time buyers are available, and government schemes such as the Lifetime ISA and shared ownership can help bridge the gap. The right choice depends on your timeline and local property prices.

If the amount you can borrow falls short of what you need, there are practical steps you can take to improve your position. Some of these are quick wins; others take a few months of preparation.

• Pay down existing debts: Clearing credit cards, personal loans or car finance before you apply removes those commitments from your affordability assessment. Even reducing balances can help.
• Reduce regular outgoings: Cancel unused subscriptions, switch to cheaper providers for bills, and cut discretionary spending in the three months before your application. Lenders review your bank statements, so visible savings can improve your assessment.
• Save a larger deposit: Each 5% step up in deposit size can open new lending tiers with better rates and higher multiples. A Lifetime ISA adds a 25% government bonus on savings up to 4,000 per year.
• Apply jointly: A joint mortgage combines two incomes, which can significantly increase the total amount you can borrow.
• Consider a guarantor mortgage: A guarantor mortgage uses a family member's income or property to support your application, allowing some lenders to offer higher amounts.
• Choose the right lender: Affordability models vary between lenders. Some are more generous with overtime, bonuses or commission income. A whole-of-market advisor can identify which lender is likely to offer you the most.

There is no fixed minimum income to get a mortgage in the UK, but in practice you need to earn enough to afford the repayments on the amount you want to borrow. Most lenders require a minimum income of around 15,000 to 20,000 for a single applicant, though some accept lower amounts for smaller mortgages.

How lenders treat your income depends on your employment type. Permanent employees typically need to provide three months of payslips and a P60. If you receive overtime, bonuses or commission, most lenders count 50% to 100% of this income, depending on how regular it is. Some lenders are more generous than others with variable income, which is where advisor guidance makes a real difference.

Self-employed applicants usually need two to three years of accounts or SA302 tax calculations. Lenders typically average your earnings over this period, though some will use your latest year if your income is rising. If you are newly self-employed with less than two years of records, options are more limited but not impossible. Check current first time buyer mortgage rates to see how income level affects the deals available to you.