Published 13 August 2026 · Last reviewed 12 August 2026
What this article covers
Right — if you’re a sole trader and you’ve been putting off the mortgage conversation because you’re worried your accounts won’t stack up, here’s the thing you need to hear first: the problem usually isn’t your business. It’s how your income looks on paper versus what you actually take home. We deal with this gap every single week, and once you understand it, the whole thing gets a lot less scary.
In short
Sole trader mortgages work like any residential mortgage, but lenders assess affordability on your net profit (the figure after expenses), not your turnover or your drawings. Most will average your declared profit over two to three years, though some accept one year’s accounts. The right proof and the right lender make all the difference.
Why are sole trader mortgages treated differently?
When you’re employed, a lender looks at your payslip, sees a clean salary number, and that’s broadly that. When you’re a sole trader, there’s no payslip — there’s you, your business, and a tax return that tells a story.
And here’s the bit that catches people out. What you experience as your income is the money landing in your account — your drawings, what you live on. What the lender sees is something different entirely: your net profit, the figure left after all your allowable business expenses come off. Those two numbers are often miles apart, and the lender only cares about one of them.
So you might be drawing a comfortable living, feeling like business is good — and then the lender’s affordability figure comes back lower than you expected. That’s not the lender being awkward. It’s just the mechanics of how self-employed income is read. Our advisers spend a lot of time bridging exactly this misunderstanding, because once you see it the way the lender sees it, you can plan around it.
The killer insight: your accountant’s good work can quietly work against you
This is the one I’d promote above everything else, so I’m giving it its own heading.
A good accountant does their job by minimising your taxable profit. They claim every allowable expense, they’re tax-efficient, and at the end of the year your declared net profit is as lean as it can legitimately be. That saves you money on tax — genuinely good work.
But a mortgage lender reads that same lean profit figure as your income. So the more efficiently your tax affairs are run, the smaller the number the lender has to lend against. What does this mean? Basically, the thing that helps you in April can hold you back when you want to borrow.
What income figure do lenders actually use?
For a sole trader, the headline number is net profit — and how lenders treat it varies. Here’s the broad picture.
| What lenders look at | How they generally use it |
|---|---|
| Net profit (after expenses) | The primary income figure for affordability |
| Turnover / gross income | Usually ignored on its own — it’s not your income |
| Drawings | Generally not used; lenders want declared profit |
| Trading history | Most want two to three years; some accept one |
| Most recent year vs average | Some average it; some can use the latest year |
The averaging point matters more than people realise. If your profit is rising year on year, an average drags your figure down because it includes weaker earlier years. Some lenders will instead consider your most recent year’s profit, which can be a meaningfully different result for a growing business. We cover the latest-year approach in more depth on our self-employed mortgages page — it’s one of the most useful levers a sole trader has.
Sole trader vs limited company vs partnership: how the assessment differs
If you’ve ever wondered whether you’d be assessed differently as a different business type, the answer is yes — and it’s worth understanding before you make any structural decisions.
| Structure | What the lender generally assesses |
|---|---|
| Sole trader | Net profit from your self-assessment |
| Partnership | Your share of the net profit |
| Limited company director | Salary plus dividends — and sometimes retained profit, with the right lender |
What does this mean in practice? A sole trader’s whole declared profit is on the table as income, which can actually be simpler than a director who’s only drawing a small salary plus modest dividends for tax reasons. None of this is a reason to change your structure for a mortgage alone — that’s a decision with tax and accounting consequences well beyond borrowing — but it’s useful to know the landscape. We talk this through with people all the time before they do anything drastic.
Can you get a sole trader mortgage with only one year’s accounts?
Often, yes — and this is where having someone who knows the market really earns its keep.
The default assumption is “you need three years’ books.” In reality, some lenders are comfortable with two years, and a smaller group will consider a sole trader with just one full year of accounts, provided the wider picture supports it. What helps is a clean, full year of trading, evidence the income is sustainable, and ideally a track record in the same line of work before you went self-employed. A lender wants reassurance the year wasn’t a flash in the pan.
So if you’ve recently gone out on your own and assumed you’ll have to wait years to buy — don’t assume. It’s exactly the kind of case we look at regularly, and it often comes down to matching your specific situation to the lender who treats it most fairly.
What lenders will want to see
When we package a sole trader case, this is broadly the evidence that gets pulled together. Think of it as your file’s foundation.
- SA302 tax calculations — usually for the last two to three years (sometimes one), showing your declared profit to HMRC.
- Tax year overviews — the companion HMRC document that confirms the tax position alongside each SA302.
- Full accounts — prepared or signed off by your accountant, especially where a lender wants more detail than the tax return shows.
- Business and personal bank statements — typically the most recent few months, to evidence income flowing in and outgoings.
- Proof of deposit — where your deposit has come from, with a paper trail.
- ID and proof of address — the standard checks every applicant goes through.
- Accountant’s details — many lenders will want to reference a qualified accountant, so having one helps.
The cleaner and more consistent this file is, the smoother the application. A common stumbling block is a recent year that looks very different from earlier ones, or a gap that needs explaining — both manageable, but far better raised up front than discovered late.
The typical application journey
Sole trader cases run in a fairly predictable order. Knowing the sequence helps you prepare rather than react.
- An honest income review — we look at your net profit figures and work out a realistic borrowing range before anything else.
- Lender matching — we identify which lenders treat your profile most favourably (latest-year vs average, one-year-accounts appetite, your trade).
- Decision in principle — an early indication of what you could borrow, based on your figures.
- Document gathering — the SA302s, accounts, and statements above.
- Full application and valuation — the lender assesses the property and your case in full.
- Offer — and on to completion with your solicitor.
If you want a sense of borrowing ranges and costs before you commit to anything, our mortgage calculator and the wider tools on the site can help you frame the numbers — though for a sole trader, a proper income review beats any calculator, because the profit figure is everything.
Does being a sole trader affect the rate or the deposit?
Generally, no — being self-employed doesn’t automatically mean a worse deal or a bigger deposit. A sole trader who fits a lender’s criteria is treated much like any other borrower on that lender’s range. The variable isn’t your employment status as such; it’s whether your declared income supports the borrowing, and how cleanly your case is presented.
Where sole traders sometimes feel they’re paying a “self-employed penalty,” it’s usually because they’ve gone to a lender whose criteria don’t suit self-employed income, been assessed conservatively, and concluded the whole market works that way. It doesn’t. Matching the case to the right lender is the difference, and that’s the part we handle.
Frequently asked questions
What counts as my income if I’m a sole trader?
Your net profit — the figure after allowable business expenses — as declared on your self-assessment. Not your turnover, and generally not your drawings.
Do all lenders need three years of accounts?
No. Many accept two years, and some will consider a sole trader with one full year of trading, provided the wider picture supports sustainability.
My accountant keeps my profit low for tax. Is that a problem?
It can be, because lenders lend against declared profit. It’s worth planning your accounts and your borrowing together, ideally a year or two ahead.
Will I pay a higher rate for being self-employed?
Not as a rule. A sole trader who meets a lender’s criteria is generally assessed on the same terms as any borrower; the key is fitting the right lender.
Can I use my most recent year if my profit is growing?
Some lenders can assess on your latest year rather than an average, which often helps a growing sole trader. It depends on the lender.
What documents should I get ready first?
Your SA302 tax calculations, tax year overviews, full accounts, and recent bank statements are the core — see the checklist above.
Send us your latest year’s net profit figure — we’ll tell you what it realistically supports
Here’s the single most useful thing you can do. Send us your declared net profit from your most recent self-assessment (and the year before, if you have it), and tell us roughly what you’re hoping to borrow. We’ll tell you the realistic borrowing range that figure supports, whether your case suits a latest-year or averaged approach, and which lenders are likely to read your numbers most fairly. One figure from you, a concrete answer from us.
Payam’s experience — A sole trader could be anyone — a locum pharmacist, a taxi driver, a designer — and if you have been advised to run your business that way, the question becomes how a lender reads your income. As a sole trader you are usually assessed on your net profit, what is left after your costs, taken from your SA302 and tax calculations — so your HMRC documents are everything. The high street typically works off your last two years of filed figures and averages them; but if you have had a strong latest year, we have specialist lenders who will work off that latest year instead of dragging it down with a weaker prior one. And if you have only recently gone self-employed, there are lenders who will consider a single year’s accounts, sometimes with an accountant’s projection alongside. Different lenders genuinely view the same income differently, so the key is matching you to the one whose approach fits your numbers — but it all starts with having your tax documents to hand. This is our field, and we place these cases all the time.
Speak to a specialist mortgage adviser today.
Independent UK specialist mortgage broker. Free initial review — your enquiry will not affect your credit file.
Free initial review · No obligation
Related guides & tools
Sources
- GOV.UK – Self Assessment tax returns. https://www.gov.uk/self-assessment-tax-returns
- GOV.UK – Construction Industry Scheme. https://www.gov.uk/what-is-the-construction-industry-scheme
- FCA Handbook – Mortgages and Home Finance: Conduct of Business Sourcebook. https://www.handbook.fca.org.uk/handbook/MCOB/
- FCA Financial Services Register – Niche Advice Limited, FRN 750263. https://register.fca.org.uk/