Self-Employed Mortgage Calculator
Estimate how much a self-employed borrower could borrow from averaged income times a multiple, plus the monthly repayment and maximum property price.
Enter your details below.
How to use
- Enter your average annual income — many lenders average the last two years, so use a realistic average rather than your best year.
- Add any other regular income, your deposit, the interest rate and the term.
- Choose an income multiple (4.5x is a common starting point).
- Click Calculate Borrowing to see the maximum borrowing, the maximum property price and the monthly payment.
About this tool
Lenders assess self-employed income differently from salaried income, so this calculator uses an average annual income times an income multiple you can adjust (4.5x is a common starting point), plus any other regular annual income. Many lenders average the last two years of accounts or tax returns, so use a realistic average rather than your best year. For sole traders, lenders usually look at net profit from tax returns; for limited company directors, they may use salary plus dividends, or retained profit in some cases. Adding your deposit to the maximum borrowing gives the maximum property price, and the monthly repayment uses the standard capital-and-interest formula at your rate and term. This is an estimate only, not financial advice: affordability checks, credit history, outgoings and the lender's own criteria all affect the final decision.
Frequently asked questions
How do mortgage companies calculate self-employed income?
It depends on your business structure. For sole traders, lenders usually look at net profit from tax returns; for limited company directors, they may use salary plus dividends, or retained profit in some cases.
How many years of accounts do I need?
Two to three years is typical, although some lenders will consider one year with a strong explanation. The average is often used rather than the most recent year alone.
Does this calculator guarantee I can borrow this amount?
No. It is an estimate only. Affordability checks, credit history, outgoings and the lender's own criteria all affect the final decision.
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