Self-employed mortgages: what lenders require in 2026

Who counts as self-employed to a lender

For mortgage purposes, lenders treat anyone with a 20% or larger share of a business as self-employed. That definition captures sole traders, partners and limited company directors, and it applies regardless of how the applicant describes their working arrangements. A director who takes a modest salary and draws the rest as dividends is assessed as self-employed, not as an employee, because the 20% share test is met. The same logic applies to a partner in a professional practice and to a sole trader operating under their own name.

Contractors working through a limited company or an umbrella company also fall within the self-employed category for many lenders, even though the day to day work resembles employment. The distinction matters because it determines which income definition and which document set the lender will use. A PAYE employee with no business interest is assessed on salary and any bonus; a self-employed applicant is assessed on profit, dividends or a day rate, depending on structure and lender. Some lenders operate a more flexible approach for contractors, but the starting position is that a 20% or larger business interest places the applicant in the self-employed bracket.

How much trading history you need

Most lenders ask for two years of trading history evidenced by HMRC SA302 tax calculations with matching tax year overviews, or accounts prepared by a qualified accountant. The SA302 shows the income figure HMRC holds for the year, and the tax year overview confirms the return was filed and the tax position. Lenders cross check the two documents because a calculation without a matching overview does not prove the return was submitted. Accounts prepared by a qualified accountant are accepted by many lenders as an alternative, though some still request the HMRC documents as a cross reference.

Some lenders accept one year of accounts, usually with a stronger deposit or a track record in the same line of work. A one year case is stronger where the applicant has previously worked in the same sector as an employee, where the deposit is larger than the minimum, or where the business has a clear pipeline of contracted work. A one year case is weaker where the applicant has recently changed sector or where the first year of trading includes an unusually large one off contract. Where only one year is available, the lender has less evidence to average, so the single year figure carries more weight and any distortion in that year has a larger effect on the assessed income.

How each structure is assessed

Sole traders and partners are assessed on net profit. Lenders typically take an average of the last two years, or the latest year if it is lower than the previous one. That rule means a rising profit trend is averaged, while a falling profit trend is taken at the lower latest figure. A falling profit trend is a common reason for a reduced offer, because the lender applies the more conservative of the two years rather than the average. Net profit is the figure after allowable business expenses, not turnover, so a business with high turnover and thin margins is assessed on the thin margin.

Limited company directors are usually assessed on salary plus dividends. Some lenders instead use salary plus the director's share of the company's net profit after corporation tax, which can produce a much higher figure where profit is retained in the company. The difference between the two methods can be substantial. A director taking a 45,000 pound salary and dividends, with further profit retained in the company, might be assessed on 45,000 pounds by one lender and on a materially higher figure by another that counts retained profit. The same director can be assessed on 45,000 pounds or 110,000 pounds depending on whether retained profit counts, so the choice of lender matters more than the headline rate. A worked comparison illustrates the point: two directors with identical company accounts can receive maximum loan figures that differ by a factor of more than two, purely because one lender uses salary plus dividends and the other uses salary plus the director's share of post tax profit.

The income multiple and the affordability test

The assessed income is then multiplied by the lender's income multiple, typically around 4.5 times, with some lenders offering higher multiples for larger incomes or professional occupations. The multiple is applied to the assessed income figure, not to turnover and not to the value of the business. A sole trader assessed on 40,000 pounds of averaged net profit would, at 4.5 times, support a maximum loan of around 180,000 pounds before the affordability test. A director assessed on 110,000 pounds under the salary plus retained profit method would, at the same multiple, support a much larger figure. The multiple is the headline number, but the assessed income is the figure that determines what the multiple is applied to.

The resulting figure is then stress-tested against outgoings and a higher notional interest rate under the FCA's affordability rules (MCOB 11). The stress test applies a higher notional interest rate than the product rate, and deducts committed outgoings such as credit commitments, childcare and any other mortgage from the assessed income. A borrower who passes the income multiple test can still fail the affordability test if outgoings are high or if the stress rate reduces the sustainable loan figure. The final maximum loan is the lower of the income multiple calculation and the affordability calculation, so both tests must be satisfied.

Documents lenders ask for

Documents typically requested are the last two or three years of SA302s and tax year overviews, downloadable from HMRC online, the last three months of business and personal bank statements, and an accountant's reference or certificate. Lenders also check that tax returns have been filed and tax paid. The bank statements are used to verify that declared income is consistent with the money moving through the accounts, and to identify any large or unexplained transfers. An accountant's reference confirms the applicant's position and, in some cases, the share of profit attributable to them.

The document set is designed to cross check three things: what was declared to HMRC, what was filed and paid, and what actually moved through the bank. Where those three sources agree, the application is straightforward. Where they diverge, the lender will ask questions. A director who has filed returns showing dividends but whose personal account shows no matching credits may be asked to explain the discrepancy. A sole trader whose business account shows large transfers to a personal account that exceed declared drawings may face similar questions. The documents are not merely administrative; they are the evidence base for the assessed income figure.

Why applications fall down

Common reasons for decline or reduced offers include less than the required trading history, a fall in profit in the latest year, tax returns not yet filed for the latest year, large unexplained transfers between business and personal accounts, and drawings that do not match declared income. A fall in profit in the latest year triggers the lower year rule for sole traders and partners, reducing the assessed income. Unfiled returns mean the lender cannot verify the latest year at all, which can push the application back to the previous year or stop it entirely. Large unexplained transfers suggest either undeclared income or a commingling of business and personal funds that makes the accounts harder to read.

Drawings that do not match declared income are a particular problem because they suggest the declared figure understates the true position, or that the business is funding personal spending in a way that is not reflected in profit. Either way, the lender cannot reconcile the documents. A reduced offer, rather than a decline, is more common where the trading history is sufficient but the profit trend is downward, or where the lender's income definition produces a lower figure than the applicant expected. In those cases the applicant may be able to proceed with a larger deposit or a different lender whose income definition is more favourable.

Alternatives if income falls short

Contractors working through a limited company or umbrella can often be assessed on their annualised day rate instead of accounts. That method is covered in the Kael Tripton contractor day-rate guide at https://www.kaeltripton.com/contractor-mortgage-day-rate-calculation/. Day rate assessment can produce a higher figure than accounts where the contractor has retained profit or taken a low salary, because it looks at the contract rate rather than the drawn income. The method is not available from all lenders and typically requires a current contract and a track record of contracting.

Family support through a joint borrower sole proprietor mortgage is another route for a self-employed buyer whose assessed income falls short; see https://www.kaeltripton.com/joint-borrower-sole-proprietor-mortgage-explained/. In that arrangement, a family member is added to the mortgage without being added to the title, so their income supports the affordability calculation while the self-employed buyer remains the sole proprietor. A larger deposit is a further option, because it reduces the loan to value and can offset a lower assessed income. Each route has its own criteria, and some lenders are more flexible than others on trading history, income definition and deposit size.

Source: HMRC SA302 guidance.

Related coverage on Kael Tripton: HMRC Timely Payments Consultation: Monthly Tax Bills for the Self-Employed Explained, FCA Mortgage Rule Review CP26/18: What It Means for First-Time Buyers, Self-Employed and Older Borrowers, HMRC is signing sole traders and landlords up to MTD: what to do, Sole trader vs limited company: how your insurance needs and personal liability change, Limited Company Mortgage UK 2026: Buy to Let Through a Ltd Company Explained.

Frequently asked questions

How many years of accounts do self-employed mortgage applicants need?

Most lenders ask for two years of trading history evidenced by SA302s with matching tax year overviews, or accounts prepared by a qualified accountant. Some lenders accept one year of accounts, usually with a stronger deposit or a track record in the same line of work.

Are sole traders assessed on turnover or net profit?

Sole traders and partners are assessed on net profit, not turnover. Lenders typically take an average of the last two years, or the latest year if it is lower than the previous one. A falling profit trend is a common reason for a reduced offer.

How are limited company directors assessed for a mortgage?

Limited company directors are usually assessed on salary plus dividends. Some lenders instead use salary plus the director's share of the company's net profit after corporation tax, which can produce a much higher figure where profit is retained in the company.

What income multiple do lenders apply to self-employed income?

The assessed income is multiplied by the lender's income multiple, typically around 4.5 times, with some lenders offering higher multiples for larger incomes or professional occupations. The result is then stress-tested against outgoings and a higher notional interest rate under MCOB 11.

What documents do lenders ask for from self-employed applicants?

Documents typically requested are the last two or three years of SA302s and tax year overviews, the last three months of business and personal bank statements, and an accountant's reference or certificate. Lenders also check that tax returns have been filed and tax paid.