Self Employed and Buying a House: What You Need to Know

Getting a mortgage when you’re self-employed is more complicated than it is for employees. Not impossible — not even that difficult, if you’re prepared — but more complicated.

The reason is simple: employees have payslips. You don’t. Lenders need to verify your income a different way, and the way they do that involves documents most sole traders have never thought about, income calculations that can feel unfair, and criteria that vary significantly between lenders.

This guide explains exactly what lenders are looking for, what documents you’ll need, the things that trip people up, and how to give yourself the best possible chance of getting the mortgage you want.

Disclaimer: I’m a Chartered Accountant, not a mortgage adviser. This guide is for information purposes only. Mortgage decisions are significant — please speak to a qualified, independent mortgage broker who specialises in self-employed applications before making any decisions.

Can Self-Employed People Get a Mortgage?

Yes — absolutely. Being self-employed doesn’t disqualify you from getting a mortgage. But it does mean you’ll need to provide more evidence of your income, and your options may be more limited than those of a salaried employee with the same earnings.

The key is understanding what lenders look at, preparing your paperwork properly, and — ideally — planning ahead before you start applying.

How Lenders Assess Self-Employed Income

This is where it gets important. Lenders don’t look at what comes into your bank account. They look at your taxable profit — the figure on your SA302 after allowable expenses have been deducted.

For sole traders, that means your net profit as shown on your Self Assessment tax return. Not your turnover. Not what you’ve invoiced. Your profit after expenses.

This has a significant implication that many self-employed people only discover when it’s too late: if you’ve been claiming every possible expense to reduce your tax bill — which is entirely sensible tax planning — you may also have reduced the income figure lenders will use to assess your mortgage. Lower taxable profit means lower assessed income, which means a smaller mortgage offer.

There’s no easy fix for this in the short term. But if you’re planning to buy in the next year or two, it’s worth being aware of the trade-off and discussing it with an accountant.

What Documents You’ll Need

SA302 and Tax Year Overview

The SA302 is an HMRC document that summarises your Self Assessment tax position for a given year — your income, allowable expenses, taxable profit, and tax owed. It’s the closest thing to a payslip that self-employed people have, and almost every lender will ask for it.

The Tax Year Overview is a separate document that shows the tax calculated, what you paid, and any outstanding balance. Lenders use it alongside the SA302 to confirm that your tax bills are up to date.

How to get them: Log into your HMRC personal tax account, go to Self Assessment, and select “Get your SA302 tax calculation.” You can download PDFs for the last four tax years.

Most lenders want the last two years of SA302s and Tax Year Overviews. Some ask for three. A small number of specialist lenders will consider just one year’s accounts — but expect fewer options and potentially stricter criteria if you go that route.

Proof of Current Income

Lenders want to know your income is ongoing, not just historical. Depending on the lender, you may also be asked for:

• Recent business bank statements (typically 3–6 months)
• Your latest full set of accounts (if you use an accountant)
• Confirmation of current contracts or projects in your pipeline

Standard Documents

The same things any mortgage applicant needs:

• Proof of identity (passport or driving licence)
• Proof of address (utility bills, bank statements)
• Proof of deposit
• Details of any existing debts, loans, or credit commitments

How Many Years of Accounts Do You Need?

Most high-street lenders: 2 years minimum. Halifax, HSBC, Nationwide, Barclays, Santander — the major names generally want at least two full years of SA302s showing stable or growing income.

Some specialist lenders: 1 year. If you’ve been self-employed for less than two years, you’re not automatically locked out — but your options narrow significantly. Specialist lenders who will consider one year’s accounts typically want:

• A large deposit (15–25% rather than 5–10%)
• A strong SA302 showing solid income
• A history of working in the same industry before going self-employed
• Confirmed forward contracts or a letter from a client confirming ongoing work

Newly self-employed: The shorter your trading history, the more the lender leans on everything else — your deposit size, your credit history, the stability of your industry. A specialist mortgage broker is particularly valuable here.

The Thing Nobody Tells You About Tax and Mortgages

This is the most important practical point in this entire guide — and it’s one most sole traders find out too late.

Lenders lend based on your taxable income. If you’ve spent years legitimately minimising your tax bill by claiming every allowable expense, your taxable profit — and therefore your assessed mortgage income — will be lower than your actual lifestyle income.

A sole trader earning £80,000 in fees but claiming £30,000 in expenses has a taxable profit of £50,000. That’s the number a lender will use. Not £80,000.

This isn’t wrong — claiming expenses is entirely proper and you should absolutely do it. But it means that if buying a house is on your horizon, it’s worth having a conversation with your accountant about your expected profit figures for the next year or two, and understanding the likely mortgage implications before you start applying.

The flip side: Some sole traders go the other way and under-claim expenses in the year or two before applying for a mortgage, to show higher taxable profit. This is a legitimate approach — you’re not claiming expenses you’re not entitled to, you’re simply choosing not to claim ones you could. Speak to an accountant about whether this makes sense for your situation.

How to Improve Your Chances

1. Get your tax affairs in order

Make sure your Self Assessment returns are filed and up to date, your tax bills are paid, and there are no outstanding issues with HMRC. Lenders check payment history. Any gaps, late filings, or unpaid tax can raise red flags.

2. Keep business and personal finances separate

If you’re still mixing personal and business spending in one account — stop. A clean business bank account with clear separation makes it significantly easier to verify your income, and some lenders will request business bank statements alongside your SA302.

3. Improve your credit score

Your credit score matters just as much when you’re self-employed. Check it well in advance — Experian, Equifax, and TransUnion all offer free checks. Pay down any existing debts where possible, make sure you’re on the electoral roll, and avoid multiple credit applications in the months before you apply.

4. Save the largest deposit you can

The bigger your deposit, the lower your loan-to-value (LTV) ratio, and the wider your choice of lenders and rates. A 10% deposit gets you into the market. A 20–25% deposit opens up significantly better options — particularly if your trading history is shorter or your income has fluctuated.

5. File your returns early

The SA302s you’ll need are for completed tax years. If you’re applying for a mortgage in, say, October 2026, having your 2025/26 return filed early means you can provide the most recent year’s figures — which may well show higher income than older years if your business has grown.

6. Use a specialist mortgage broker

This is the single most valuable thing you can do. A broker who specialises in self-employed mortgages knows which lenders are most likely to look favourably on your specific circumstances, understands how different lenders calculate self-employed income, and can present your application in the strongest way.

High-street mortgage advisers aren’t always well-versed in self-employed applications. A specialist broker is worth the fee — and many work on a no-fee basis, earning their commission from the lender.

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Government Schemes Worth Knowing About

Self-employed buyers can access most of the same government schemes as employed buyers:

Mortgage Guarantee Scheme — allows buyers with a 5% deposit to access 95% LTV mortgages. Available on properties up to £600,000. Not all lenders participate, and self-employed applicants may find fewer options at this LTV.

Lifetime ISA (LISA) — if you’re a first-time buyer under 40, a LISA lets you save up to £4,000/year and receive a 25% government bonus (up to £1,000/year). Can be used towards a property purchase of up to £450,000. If you’re not already using one and you’re thinking about buying in the next few years, it’s worth starting one now.

Shared Ownership — buy a share of a property and pay rent on the rest, with the option to buy more shares over time. Available to first-time buyers with a household income under £80,000 (£90,000 in London).

What to Expect from the Process

The mortgage application process for self-employed buyers takes longer than it does for employees — plan for it. Lenders may ask for additional documents, clarification on income figures, or explanation of any fluctuations in profit between years.

A few things that commonly cause delays:

• Income inconsistency — a significant drop in profit one year, even if followed by recovery, raises questions. Be prepared to explain it.
• Mismatches between documents — if your accounts, SA302, and bank statements tell slightly different stories, applications stall. Clean, consistent paperwork is essential.
• Outstanding tax — unpaid Self Assessment bills are a red flag. Pay them before you apply.
• Recent new business — if you’ve just switched industries or gone self-employed after employment, shorter history means fewer options.

None of these are insurmountable. They just require preparation and, in most cases, a broker who knows how to present your case.

Your Self-Employed Mortgage Checklist

• SA302 and Tax Year Overview for last 2 years — downloaded from HMRC
• Self Assessment returns filed and up to date
• Tax bills paid — no outstanding balance
• Business and personal finances separated
• Business bank statements for last 3–6 months
• Credit score checked and any issues addressed
• Deposit amount confirmed
• Specialist self-employed mortgage broker identified
• Spoke to accountant about income figures and mortgage implications

FAQs

Can sole traders get a mortgage in the UK?

Yes — being self-employed doesn’t prevent you from getting a mortgage. Lenders assess your income differently from employees (using SA302s rather than payslips), and you’ll need at least two years of accounts for most high-street lenders. A specialist mortgage broker makes the process significantly smoother.

How many years of accounts do I need for a mortgage?

Most high-street lenders require two years of SA302s and Tax Year Overviews. Some specialist lenders will consider one year, particularly with a larger deposit and stable industry background. Fewer than one year makes it very difficult to borrow from most lenders.

What is an SA302 and how do I get one?

The SA302 is an HMRC document summarising your Self Assessment tax position — your income, expenses, taxable profit, and tax owed. Get it by logging into your HMRC personal tax account, going to Self Assessment, and downloading your tax calculation. Most lenders want the last two years.

Does claiming expenses affect my mortgage?

Yes — lenders use your taxable profit (income after expenses) to assess affordability. The more expenses you claim, the lower your taxable profit, and the lower your assessed mortgage income. It’s a genuine trade-off worth discussing with your accountant if you’re planning to buy.

Do I need a specialist mortgage broker?

Strongly recommended. Lenders assess self-employed income differently, and a specialist broker knows which lenders are most likely to approve your application and how to present your case. High-street mortgage advisers aren’t always familiar with self-employed criteria.

Can I get a mortgage if I’ve only been self-employed for one year?

Possibly — some specialist lenders will consider one year’s accounts, particularly with a larger deposit, previous employment in the same industry, and strong SA302 figures. Your options will be more limited than with two years, but it’s not impossible.

Does being self-employed affect how much I can borrow?

It can — lenders use your taxable profit rather than your turnover or invoice total. If you’ve been minimising tax through expense claims, your assessed income (and therefore mortgage offer) may be lower than you expect. Getting an accountant’s view on your expected profit before you apply is useful.

What government schemes can self-employed buyers use?

Most government schemes are available to self-employed buyers on the same basis as employees — including the Lifetime ISA, Shared Ownership, and the Mortgage Guarantee Scheme. Check the current terms and eligibility on GOV.UK.