The short answer
There's no separate "self-employed mortgage" product — you're applying for the same fixed, tracker and variable deals as anyone else. What's different is how you prove your income. Instead of a payslip and an employer reference, lenders want to see two or three years of accounts or HMRC tax calculations, and how they read those figures depends heavily on whether you're a sole trader, a partner, or a limited company director. Get the paperwork and the lender choice right, and being self-employed shouldn't stop you getting approved — it just takes more preparation than an employed application.
How lenders actually assess self-employed income
Most lenders ask for two to three years of trading figures, ideally prepared or signed off by a certified or chartered accountant. They'll usually want either your SA302 tax calculations — HMRC's summary of your income and tax for each year — alongside matching Tax Year Overviews, or an accountant's certificate completed on the lender's own form. Several high-street lenders, including Santander, accept either route, though they tend to prefer the accountant's certificate when you have one, since it's a format underwriters are used to reading.
You can get SA302s from HMRC for the last four tax years once your Self Assessment return has been filed, and you can print them yourself from HMRC's online service — or from the "tax computation" your accounting software produces — as long as it's at least 72 hours since you submitted the return. If your mortgage provider won't accept documents you've printed yourself, HMRC can send copies directly.
Rather than just taking your most recent year's figures, most lenders average your profit across the years of accounts they're given, though some will use the lower of your latest year or the multi-year average if your income has dropped. That makes a steady or rising trend far more valuable to your application than one unusually strong year.
Sole traders vs limited company directors: a different kind of assessment
The biggest split in how self-employed income gets assessed isn't about how long you've traded — it's about your business structure.
Sole traders & partners
Assessed on your net profit — what's left after expenses, before tax.
- Lenders typically average two to three years' net profit
- Partners are usually assessed on their individual share of profit
- SA302s and Tax Year Overviews are the standard evidence
Limited company directors
Traditionally assessed on salary plus dividends actually drawn from the company.
- Profit left in the business is often excluded by high-street lenders
- A growing number of lenders will instead assess net or retained profit
- Changing from salary/dividends to a different drawing pattern mid-application can complicate things
For a director who draws a modest salary and dividend but reinvests most of the company's profit, this distinction matters enormously. A lender that only counts salary and dividends may assess you as earning a fraction of what your business actually makes, while a lender willing to look at profit before tax or retained earnings could support a significantly larger mortgage on exactly the same set of accounts. This is one of the most common reasons two "self-employed mortgage" quotes for the same person can look wildly different — it's rarely about the headline interest rate, and almost always about whose income definition the lender is using.
High-street lenders vs specialist self-employed lenders
Both can work well, but they tend to suit different situations.
High-street lenders
Typically want two to three years of accounts or SA302s and apply standardised, score-based assessment.
- Usually base director income on salary plus dividends
- Tend to lend around the same multiples as for employed applicants
- Often the better-value option if your figures are straightforward and consistent
Specialist self-employed lenders
Often take a more case-by-case view of income and circumstances.
- More likely to accept one year's accounts or assess retained profit
- Usually accessed through a mortgage broker rather than directly
- Can mean a different rate or fee structure than a mainstream deal
Lender appetite and criteria shift often, so treat any list of named specialist lenders as a starting point rather than a guarantee — a broker who deals with self-employed cases regularly will know which lenders are currently flexible on your particular situation, whether that's one year's trading, retained profit, or a recent change of business structure.
Income multiples: why the same income can mean different offers
For employed and self-employed applicants alike, most mainstream lenders will lend somewhere around four to four-and-a-half times your assessed annual income, affordability checks permitting. Some specialist or director-focused lenders go higher — up to around five times income or more in the right circumstances — particularly where they're working from a broader profit figure rather than just salary and dividends. The practical effect is that "how much can I borrow" depends as much on which lender you apply to, and which part of your income they count, as it does on how much your business actually earns. This is exactly why the sole trader/director split above matters so much in practice, not just on paper.
Can you get a mortgage with just one year of accounts?
It's possible, but your options narrow. A number of specialist lenders will consider a single year's figures, particularly if you can show relevant experience from before you went self-employed — for example, moving from an employed role into contracting or sole trading in the same field. Expect to be asked for a larger deposit, a clean credit history, and ideally accounts prepared by a qualified accountant who can speak to your figures if the lender has questions. Newly self-employed applicants with no trading history at all will generally find this the hardest situation of all, and may need to wait until a first set of accounts exists before applying.
Practical steps that improve your approval odds
None of these guarantee approval, but each one removes a reason for a lender to say no:
- Use a qualified accountant. Some lenders require accounts to be prepared or certified by a certified or chartered accountant, and will only accept their own accountant's certificate form rather than general accounts.
- Keep your SA302s and Tax Year Overviews ready and matching. File your return promptly each year, and make sure the figures on both documents agree — a mismatch is a common cause of delay.
- Save the largest deposit you realistically can. It widens your choice of lender, can offset a shorter trading history, and often improves the rate on offer.
- Think twice before changing business structure close to applying. Moving from sole trader to limited company, or vice versa, shortly before or during an application can reset how much trading history a lender will count.
- Tidy up your credit file. Register on the electoral roll, correct any errors, pay down existing debts where you can, and avoid applying for new credit in the months before you apply.
- Rein in discretionary spending beforehand. Lenders review your recent bank statements and outgoings as part of affordability, not just your declared income.
- Use a whole-of-market mortgage broker. They'll know which lenders are currently comfortable with your business structure, trading length and income pattern — and can help you avoid a declined application showing up on your credit file before you've found the right lender.
Where to check current details
SA302 tax calculations and Tax Year Overviews are obtained from HMRC, and GOV.UK's guidance explains how far back you can request them and how to get them if you file through commercial software. Every lender's own criteria — how many years of accounts they want, whether they'll count retained profit, and current income multiples — vary and change regularly, so always confirm the latest position with the lender or a mortgage broker before applying.
Frequently asked questions
How many years of accounts do I need for a self-employed mortgage?
Most lenders want to see two to three years of accounts or SA302 tax calculations, usually prepared or certified by a qualified accountant. A small number of lenders, often specialist ones, will consider just one year's figures if the rest of your application is strong, but your choice of lender shrinks considerably and you may need a larger deposit.
Are sole traders and limited company directors assessed differently?
Yes. Sole traders are usually assessed on their average net profit over two or three years, taken from SA302s or signed accounts. Limited company directors are typically assessed on salary plus dividends — the income you've actually drawn from the business — rather than on the company's total profit, though a growing number of lenders will also look at retained profit or profit before tax, which can suit directors who reinvest rather than draw a large dividend.
What if my limited company keeps most of its profit in the business rather than paying dividends?
This is one of the most common reasons self-employed directors get a lower offer than expected. Traditional high-street lenders generally only count salary and dividends actually paid to you, so a director who reinvests profit can look like they earn far less than the business actually makes. A specialist lender or broker who works with lenders that assess net or retained profit can often unlock meaningfully more borrowing in this situation.
Can I get a mortgage with only one year of self-employed accounts?
It's possible but harder. A handful of specialist lenders will consider one year's accounts, sometimes alongside evidence from before you went self-employed, such as a related employed role or industry experience. Expect to need a larger deposit, a clean credit history, and ideally an accountant who can speak to your figures — a mortgage broker can point you to the lenders most likely to say yes.
Do I need a bigger deposit if I'm self-employed?
Not always, but it helps. Most lenders ask for a minimum 10% deposit from self-employed applicants, which can rule out some of the 95% mortgages available to employed buyers, and a shorter trading history or lower-than-average profits can push that minimum higher still. A bigger deposit widens your choice of lender and can improve the rate you're offered.
Will changing from sole trader to limited company hurt my mortgage application?
It can, mainly through timing. Switching business structure partway through an application, or shortly before one, can lead some lenders to treat you as a newly trading business even if you've worked in the same trade for years, resetting the accounts history they'll count. If a change in structure makes sense for your business, it's worth doing it well before you plan to apply, or waiting until after you've been accepted.
This guide is for general information and doesn't constitute financial or legal advice. Mortgage lending criteria, income assessment rules and tax processes are set by individual lenders and HMRC and can change; always confirm your specific situation and current lender criteria directly with a mortgage broker, lender or qualified accountant before applying.