HMRC SA302 vs Tax Calculation (2026): What’s the Difference — and Which One Lenders Actually Accept?

If you’re self-employed and applying for a mortgage, you’ve likely been asked for an SA302, a Tax Calculation, and sometimes a Tax Year Overview. The terminology is confusing — and lender requirements can be even more confusing. This guide explains the difference, what lenders usually accept in practice, and how to download everything quickly.

Quick answer (what lenders usually want)

• SA302 is the HMRC term for your Self Assessment tax calculation (often called “Tax Calculation”).
• Many lenders also ask for the Tax Year Overview to cross-check that your tax position matches HMRC’s records.
• You can generally print an SA302 for the last 4 tax years after filing, and a Tax Year Overview for any year.

SA302 vs Tax Calculation: are they the same thing?

In most mortgage conversations, “SA302” and “Tax Calculation” are used interchangeably. HMRC describes the SA302 as the tax calculation showing your total income, allowances/reliefs, and how your tax bill was calculated.

What the SA302 (Tax Calculation) shows

• Total income on which tax is due
• Allowances and reliefs applied
• Total amount owed for that tax year
• How HMRC worked out the figure

Note: It does not include items such as payments on account or other outstanding amounts outside the calculation.

So what is a “Tax Year Overview” — and why do lenders ask for it?

The Tax Year Overview is an HMRC account summary for a specific tax year. Lenders often request it alongside the SA302 because it helps confirm that HMRC’s record of your position aligns with the tax calculation you’re providing.

In plain English

• SA302 / Tax Calculation = the calculation of your income and tax for that year.
• Tax Year Overview = HMRC account view for that year (used as a cross-check).

Practical tip: if your lender says they “don’t accept SA302”, ask whether they mean they need an HMRC Tax Calculation + Tax Year Overview or an accountant-generated computation from software plus the HMRC overview.

Which one do lenders actually accept (2026 reality check)?

Many mainstream lenders accept customer-printed Tax Calculations (SA302) and Tax Year Overviews, but requirements vary. HMRC explicitly advises you to check your mortgage provider accepts documents you’ve printed yourself. There is also a GOV.UK list of lenders who agreed to accept printed SA302/overviews (useful as a reference point).

What to submit (common lender pack)

1. SA302 / Tax Calculation for the required years (often 2–3 years, sometimes 1–4)
2. Tax Year Overview for the same years
3. (Sometimes) business accounts / accountant letter / bank statements depending on lender policy

If your broker/lender provides a checklist, follow that first — then use this guide to get the correct documents quickly.

How to download/print your SA302 and Tax Year Overview (fast)

You can print your own SA302 (Tax Calculation) and Tax Year Overview if you file via HMRC online services or commercial software. One key rule: you cannot print your documents until 72 hours after you submit your return.

Fast checklist

• Log in to your HMRC account → Self Assessment
• Download/print the SA302 (Tax Calculation) for the relevant year(s)
• Download/print the Tax Year Overview for the same year(s)
• Repeat for each year your lender requests

Official HMRC/GOV.UK start point: Get your SA302 tax calculation

Common issues that cause delays

• You filed recently: wait the 72-hour window before trying to print.
• You printed the SA302 but forgot the Tax Year Overview (many lenders require both).
• The lender wants multiple years: make sure the years match exactly across both document types.
• Name/address mismatch: use the documents generated from your HMRC account for consistency.

FAQ (high-intent)

Is an SA302 the same as a Tax Calculation?

In mortgage applications, yes — lenders often use “SA302” to mean your HMRC Self Assessment tax calculation. Always confirm whether they also require the Tax Year Overview for the same years.

How many years do lenders want?

Many ask for 2–3 years, but it varies by lender and case. HMRC allows you to obtain evidence of earnings (SA302) for the last 4 tax years.

I submitted my return today — why can’t I print the documents?

HMRC states you cannot print your SA302/tax year overview until 72 hours after you’ve sent your return.

What if my lender won’t accept documents I printed myself?

Ask the lender exactly what format they require. Some will accept an accountant-produced computation from software plus the HMRC Tax Year Overview, while others insist on HMRC-produced outputs. Requirements vary — follow the lender’s checklist.

Sources (official)

• GOV.UK — Get your SA302 tax calculation
• GOV.UK — Tax calculation (SA302) explained
• GOV.UK — Lenders who agreed to accept printed SA302/Tax Year Overview