SA302 Explained: The Self-Employed Mortgage Form

If you are self-employed and applying for a mortgage in 2026, the SA302 is the form that will make or break your application. It is HMRC's tax calculation summary of a single tax year - your gross income, the bits that made it up, and the tax due on the lot. Mortgage lenders use it as the evidence of self-employed earnings that an employed applicant gets from a payslip and a P60.

The catch is that HMRC stopped posting SA302s in 2017. You now have to download it yourself, and you almost always need to pair it with a second document called the Tax Year Overview. Plenty of self-employed applicants get caught out at the last minute by a broker asking for "the SA302 and TYO for the last three years" and not knowing what either is, where to find them, or why one is not enough.

This guide walks you through what the SA302 actually is, how to get yours from HMRC online, how the rules change if you file via commercial software, what the Tax Year Overview adds, and the practical traps that catch first-time self-employed mortgage applicants.

Contents

• What is an SA302 form?
• Why mortgage lenders ask for the SA302
• How to get your SA302 from HMRC online
• What if I file via accounting software?
• The Tax Year Overview: the second half of the pair
• How many years of SA302s do you need?
• Reading your SA302 line by line
• Common SA302 mortgage traps
• Frequently asked questions

What is an SA302 form?

The SA302 is the official HMRC name for the tax calculation produced when you file a Self Assessment return. For each tax year you have filed, HMRC generates an SA302 showing:

• Your total income for the year, broken down by source (self-employment profits, employment income, dividends, rental income, savings interest, pension income, the lot).
• The personal allowance and any other reliefs applied against that income.
• The income tax and Class 2 / Class 4 National Insurance due on the total.
• The high-income Child Benefit charge, student loan repayments, payments on account, and any other charges or credits.
• The final tax position - what you owe or are owed for that year.

In its current online form the document runs to two to four PDF pages depending on how many income sources you have. The historic paper version was longer and posted to filers within a few weeks of the return being processed. HMRC stopped issuing paper SA302s in 2017, and stopped posting them altogether in late 2017 except by phone request. The default is now "log in and download it yourself".

If you have never filed a Self Assessment return, you do not have an SA302. The document only exists for tax years for which a return has been submitted and processed by HMRC.

Why mortgage lenders ask for the SA302

UK lenders have to satisfy themselves under the FCA Mortgage Conduct of Business rules that the loan they are issuing is affordable. For an employed applicant, the lender takes the payslip and the P60, multiplies the gross figure by whatever income multiple their underwriting policy allows (typically 4 to 4.5 times), and the rest is paperwork. For a self-employed applicant, "income" is not a single payslip figure. It is the profit you declared on your Self Assessment after legitimate business expenses, capital allowances and other adjustments.

The SA302 is the document the lender uses to pin that figure down, because it is HMRC's record of what you reported, not a number you typed into the application yourself. Trying to inflate the figure to win a bigger loan is essentially mortgage fraud, and the lender can (and will) cross-check the SA302 figure against the Tax Year Overview, which confirms whether the tax was actually paid.

UK Finance, the trade body that used to be the Council of Mortgage Lenders, maintains a list of lenders who accept self-printed SA302s downloaded from HMRC. Almost every mainstream UK lender is on it. A handful of niche specialist lenders still demand the original HMRC-stamped paper version, which is functionally impossible to obtain in 2026; they will accept a phone-requested posted copy that takes around two weeks. If your broker is steering you toward one of these lenders, ask what alternatives are on the panel before you accept that timeline.

For wider context on the self-employed mortgage process and which lenders will look at one year of accounts rather than the default two or three, see the step-by-step UK mortgage types guide.

How to get your SA302 from HMRC online

Assuming you filed your most recent Self Assessment return more than 72 hours ago (this is the HMRC processing wait, not a website limit), the route to your SA302 is:

1. Sign in to your HMRC Personal Tax Account at gov.uk/personal-tax-account using your Government Gateway user ID. If you do not have one, you can create one but you will need your National Insurance number, two forms of UK ID and roughly fifteen minutes of patience for the verification.
2. From the home screen, select Self Assessment and then More details about your Self Assessment returns and payments.
3. Choose the tax year you want.
4. Select Get your SA302 tax calculation. The download appears as a PDF.

Repeat for each year your lender wants. Each PDF is the same generic template HMRC uses across all filers, branded with HMRC headings, with the tax year clearly stamped. That is the version mortgage lenders are looking for.

If 72 hours have not passed since you filed, the option will not be there. Wait it out - HMRC's processing pipeline does not skip the queue for mortgage urgency.

If you are blocked by Government Gateway problems (forgotten password, lost ID, expired details), the recovery flow on gov.uk is the only route. There is no SA302 helpline you can phone to skip authentication.

What if I file via accounting software?

A growing share of self-employed UK filers use commercial software - FreeAgent, Xero, QuickBooks, TaxCalc, Sage - to file Self Assessment under Making Tax Digital. If that is you, HMRC does not generate an SA302 in your Personal Tax Account for those filings. The tax calculation lives inside the software you used to file. You print the equivalent document - usually called the Tax Computation or Tax Calculation rather than "SA302" - from the software itself.

UK Finance's lender list explicitly accepts these software-printed calculations, on the condition that the format matches the HMRC SA302 layout and is clearly labelled as the official tax computation from approved Making Tax Digital software. Almost every major package produces a compliant output as a built-in feature; if yours does not, that is a reason to switch software, not to apologise to your broker.

You still need to download the Tax Year Overview separately from your HMRC Personal Tax Account. The TYO is generated by HMRC's records regardless of which channel you used to file, and lenders want the pair regardless of which route the SA302 / tax computation took.

The Tax Year Overview: the second half of the pair

The Tax Year Overview is the document that proves the tax shown on your SA302 was actually paid (or is properly recorded as due). It shows:

• The tax year.
• The total amount of tax due for the year, taken from your Self Assessment.
• Payments on account credited.
• The balancing payment due or refund issued.
• The current status: paid in full, partial, or outstanding.

Without the TYO alongside the SA302, the lender has only your declared figure and no confirmation that HMRC actually accepted and processed it. That is why the pair is almost always asked for together. Forgetting the TYO is the single most common cause of a self-employed mortgage application being kicked back to "please send the missing documents", and the easiest fix you will ever make.

To download it: log in to your Personal Tax Account, go to Self Assessment, choose the tax year, and select Tax year overview rather than SA302. The PDF is one page per year. Download one for every year your SA302 covers.

If a balancing payment is outstanding because you filed but have not paid yet, the TYO will show that - and the lender will see it. Sort the payment before you submit the mortgage application. Showing up at underwriting with an outstanding HMRC balance is not a small thing.

How many years of SA302s do you need?

Standard self-employed mortgage underwriting wants two full years of SA302s plus matching Tax Year Overviews. A small but growing group of lenders accept one full year for applicants with strong contractor backgrounds or recent PAYE-to-self-employed transitions; a more cautious group ask for three years.

The default to plan for is two. If you are in your first full self-employed year and have not filed your second return yet, the practical strategies are:

• File your Self Assessment as early as possible after the 6 April year end, so the SA302 is available for the maximum window of mortgage offers. Filing in January (the deadline) means you cannot apply on the most recent year's figures for nine months of the calendar year. Filing in May means you can.
• Use a contractor / specialist self-employed broker who knows which lenders take one year of accounts at acceptable rates.
• Hold off on the application if you can afford to. The rate uplift on first-year-self-employed deals is meaningful, and one extra tax year of evidence can save you 0.3-0.6 percentage points on a fix.

The self-employed mortgage guide covers the lender panel question in more detail.

Reading your SA302 line by line

A typical SA302 PDF has four blocks. The structure is the same across years and across filers; the numbers change.

Block 1: identification

Your name, Unique Taxpayer Reference (UTR), National Insurance number, and the tax year covered. This is what the lender uses to match the document to your application.

Block 2: income summary

A list of every income source you declared, by type. Self-employment profit (after expenses and capital allowances) sits here, alongside any employment, dividend, rental, foreign or savings income. The line a mortgage lender focuses on is the trading profit figure for sole traders, or the share of partnership profits for partners.

Block 3: deductions and reliefs

Personal allowance applied, any other reliefs (gift aid, pension contributions where you have claimed higher-rate relief, marriage allowance transfer). The figure at the bottom of this block is your taxable income.

Block 4: tax due

Income tax due, Class 2 and Class 4 NI for sole traders, student loan repayments where applicable, payments on account against the next year, and the final balance owed or refund due.

If a lender asks for "the income figure on your SA302", they almost always mean the trading profit before tax from Block 2 - the figure they multiply by their income multiple to set the maximum lend. Some lenders will use the figure after pension contributions; a small number use taxable income from Block 3. The honest answer is "ask the broker which line the lender uses" - the figures are not interchangeable and using the wrong one upstream of an Agreement in Principle will cause friction at full application.

Common SA302 mortgage traps

The complaints that come up again and again on r/UKPersonalFinance, in mortgage broker forums, and in self-employed accountancy practices:

• Filing late. A January-filed return means no SA302 is available for the most recent year until February at the earliest, which closes off the cheapest first-half-of-year mortgage rate slots. File in April or May.
• Outstanding HMRC balance. The Tax Year Overview will show it. Pay it before you submit.
• Mismatched figures between the SA302 and the application form. Underwriters cross-check both. If you reported £42,000 of trading profit but typed £45,000 of "income" on the mortgage app, expect a question. Round numbers and casual estimates trigger flags.
• Trying to use a snipped screenshot. Lenders want the full HMRC-generated PDF or software-generated tax computation. A cropped screenshot of the relevant figure is grounds for rejection.
• Forgetting the Tax Year Overview. Already covered above. The single most common avoidable trap.
• Using a Self Assessment from a year where you also drew significant dividends from a limited company. The SA302 captures the personal tax picture but does not show retained company profits. Lenders that lend to limited company directors will want company accounts and possibly an SA302 separately - the documents serve different jobs.

For directors of small companies considering whether to remain on PAYE plus dividends or restructure as a sole trader, the limited company vs sole trader guide covers the trade-offs - and the mortgage-evidence implication is a real one.

Frequently asked questions

How do I obtain my SA302?

Sign in to your HMRC Personal Tax Account at gov.uk/personal-tax-account, choose Self Assessment, then Get your SA302 tax calculation for the year you want. If you filed via commercial accounting software, you print the equivalent Tax Computation from inside that software instead. Either route is accepted by almost every UK mortgage lender on the UK Finance approved list.

What is a SA302 for?

The SA302 is HMRC's tax calculation summary for one Self Assessment tax year. Its main practical use is as proof of self-employed income for mortgage applications, but it is also used for visa applications, court financial disclosures, and benefit appeals. It is the self-employed equivalent of a payslip plus P60.

Is SA302 only for self-employed?

No. Anyone who has filed a Self Assessment return has an SA302 for that year. Higher earners on PAYE with savings or dividend income, landlords, partners in partnerships, and anyone receiving non-PAYE income at scale will all have SA302s on file. The form is most commonly used by the self-employed because they have no equivalent of a payslip, but it is not restricted to them.

Is HMRC no longer issuing SA302s?

HMRC stopped automatically posting paper SA302s in late 2017. You can still phone HMRC and request a paper copy by post, which takes around two weeks to arrive. The standard route in 2026 is to download the PDF yourself from your Personal Tax Account. Almost every mainstream UK mortgage lender now accepts the self-downloaded version on the strength of the UK Finance approved list.

Can I download an SA302 online?

Yes. Sign in to your HMRC Personal Tax Account, choose Self Assessment for the tax year you want, and select Get your SA302 tax calculation. The PDF downloads immediately. The only timing constraint is that HMRC needs 72 hours after you file the relevant Self Assessment return before the SA302 is available to download.