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Mortgage borrowing calculator showing income and lending assessment

Mortgage calculators

How Much Could I Borrow?

Use a simple income illustration to explore an indicative borrowing amount and property budget.

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Your income and deposit
Number of applicants

Your illustration

Enter your figures to see an illustration.

This is a simple illustration using your gross annual income and a 4.5 income multiplier. It is not an affordability assessment, mortgage offer or guarantee. A lender may offer less or more after considering your income, spending, financial commitments, credit history, the property and its own criteria.

Worked borrowing examples

How much could I borrow across different UK household incomes?

While every mortgage lender applies its own detailed income-and-expenditure stress test, an initial illustration between 4.0 times and 4.5 times gross annual household income shows how borrowing potential scales for single and joint applicants before monthly commitments are deducted.

Illustrative mortgage borrowing examples across UK household incomes
Gross annual household income Illustrative 4.0× income Illustrative 4.5× income Illustrative budget with £25,000 deposit (at 4.5×)
£35,000 £140,000 £157,500 £182,500
£45,000 £180,000 £202,500 £227,500
£60,000 £240,000 £270,000 £295,000
£75,000 £300,000 £337,500 £362,500
£100,000 £400,000 £450,000 £475,000

Figures are illustrative starting points only and do not constitute a mortgage offer or lending decision. Actual borrowing limits depend on verified income structure, credit commitments, dependants, property type, loan-to-value and lender affordability stress testing.

Beyond the income multiple

How lenders assess affordability for home buyers

When you apply for a first-time buyer mortgage or are buying your next home, lenders look beyond basic salary:

  • Variable and self-employed income: Overtime, bonuses, commission, and company director salary/dividends are often averaged over 1 to 3 years or capped at a percentage of basic pay.
  • Monthly credit and household commitments: Personal loans, car finance (PCP/HP), credit card balances, student loans, maintenance and childcare costs reduce the net disposable income available to pass the lender's stress-tested interest rate.
  • Mortgage term and retirement age: Extending the repayment term can alter monthly affordability, provided the term remains within the lender's maximum age criteria or is supported by verifiable retirement income.

Refinancing & releasing equity

Remortgage calculator: how much can I borrow when remortgaging?

Homeowners searching for how much they can borrow on a remortgage must satisfy two separate limits—income affordability and property loan-to-value (LTV):

  • Switching like-for-like: If you are not borrowing any additional money and your payments are up to date, a product transfer with your existing lender may not require a full income reassessment, whereas switching to a new lender will involve a full affordability check.
  • Borrowing more (capital raising): If you want to borrow extra funds for home improvements or another stated purpose, the total revised mortgage must fit within the lender's income multiple and affordability model and stay within the maximum LTV cap for that purpose (typically 80% to 90% LTV on residential remortgages).
  • Comparing monthly costs: Once you have an indicative borrowing figure, use our 2-year vs 5-year fixed rate remortgage comparison tool and mortgage repayment calculator to test the monthly payments.

How much could I borrow? Common questions

The calculator gives a quick starting point. These answers explain what the figure means and what a lender is likely to look at.

How much can I borrow for a mortgage?

Many lenders use an income multiple as an initial guide, which is why this calculator multiplies gross annual income by 4.5. The amount a lender will actually offer depends on its affordability assessment of your income, regular spending, financial commitments, credit history, deposit and the property. Some lenders may offer less than the illustration and, in some circumstances, others may consider more.

Why does the calculator use 4.5 times income?

A multiple of 4.5 is a commonly used reference point for an initial illustration. It is not a lender rule that applies to everyone, and it does not reflect your spending, commitments or credit history. Treat the result as a starting point for planning rather than an amount you can expect to be offered.

What affects how much a lender will lend?

Lenders typically consider income and how stable it is, the type of employment or self-employment, regular outgoings and debts, dependants, credit history, the size of the deposit, the mortgage term and the property itself. Each lender applies its own criteria and stress tests.

Does the deposit change how much I can borrow?

In this calculator, the deposit is added to the borrowing illustration to show a possible property budget. In practice, a larger deposit can widen lender choice because it reduces the loan-to-value, but it does not by itself increase the amount a lender will lend against your income.

Is it different in Scotland or Wales?

Lenders generally assess affordability in the same way across the UK. Property purchase tax does differ: Scotland uses Land and Buildings Transaction Tax, Wales uses Land Transaction Tax and England and Northern Ireland use Stamp Duty Land Tax, so the cash you need to complete may vary by location.

Is this a mortgage offer or agreement in principle?

No. It is a simple illustration based on the figures entered. It is not an affordability assessment, decision in principle, mortgage offer or guarantee of lending.

Continue exploring

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Explore how regular monthly overpayments or a lump sum could affect your term and interest.

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All Mortgage Calculators

Return to the calculator hub to see all available tools.

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Client reviews

What Anderson Reed Financial Services clients say about their experience.

Clear explanations and practical support can be just as important as the figures themselves.

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★★★★★
“Cannot thank Scott for all his help support throughout the process of sorting our mortgage. Ours wasn’t a typical ‘let’s just go & get a mortgage’ situation, but Scott’s knowledge & expertise made everything so much easier. Would highly recommend”
Teresa Bicknell Google review
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“Scott was fantastic for myself and my business partners. Professional throughout and contactable throughout the day. Would recommend his service to anyone!”
Ryan Hills Google review
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“Cannot thank Scott enough, helped us throughout the entire process and was always available for support! 10/10.”
Nayim Sumra Google review
★★★★★
“Scott, Held our hand from start to finish with our purchase. Amazing service.”
Stephen & Michelle Conway Google review

Want a clearer picture?

Discuss what you could borrow with an adviser.

A Mortgage and Protection Advisor can look at your income, commitments and plans, explain how lenders are likely to view them and talk through the costs involved in buying.

Your home may be repossessed if you do not keep up repayments on your mortgage.

Get startedCall 02382 127779

Important information

Your property may be repossessed if you do not keep up repayments on your mortgage.

Your initial consultation is free and without obligation. We charge a fee for mortgage advice, and our standard fee is £695, payable only on formal application.

Regulatory information

Our regulatory status

Anderson Reed and Anderson Reed Financial Services are trading names of Anderson Reed Financial Services Ltd, an Appointed Representative of Connect IFA Ltd, which is authorised and regulated by the Financial Conduct Authority (Firm Reference Number 441505) and is entered on the Financial Services Register under reference 947349. The guidance and/or information contained within this website is subject to the UK regulatory regime and is therefore targeted at consumers based in the UK.

Fees and commission

Your initial consultation is free and without obligation. We charge a fee for mortgage advice, and our standard fee is £695, payable only on formal application.

Commission disclosure: We are a credit broker and not a lender. We have access to an extensive range of lenders. Once we have assessed your needs, we will recommend a lender or lenders that provide suitable products to meet your personal circumstances and requirements, though you are not obliged to take our advice or recommendation. Whichever lender we introduce you to, we will typically receive commission from them after completion of the transaction. The amount of commission we receive will normally be a fixed percentage of the amount you borrow from the lender. Commission paid to us may vary in amount depending on the lender and product. The lenders we work with pay commission at different rates. However, the amount of commission that we receive from a lender does not have an effect on the amount that you pay to that lender under your credit agreement.

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