How to Download Your Tax Calculations and Tax Year Overviews

Because mortgage lenders love paperwork almost as much as they love interest rates!

If you’re applying for a mortgage, chances are your lender will ask for your Tax Calculation (SA302) and Tax Year Overview. These documents serve as proof of the income you’ve declared to HMRC—whether from employment, self-employment, dividends, or property earnings.

To make your life easier (and avoid last-minute panicking), here’s a straightforward guide on how to get these documents online.

Why do Mortgage Lenders Need Your Tax Calculations?

The Tax Calculation (SA302) is an official summary of the income and tax figures you submitted on your self-assessment tax return. Lenders use it to verify that the income you’ve declared in your mortgage application is accurate and consistent with your tax records.

By reviewing your SA302, lenders can assess your financial health and ensure you have a reliable income stream to meet future mortgage repayments. It provides a snapshot of your earnings and helps them determine your borrowing capacity.

Since self-employed income can fluctuate, lenders want to see evidence over multiple tax years. SA302 forms, along with tax year overviews from HMRC, help confirm that your reported earnings are consistent and that you’re managing your tax affairs appropriately.

How to Access Your Tax Documents

HMRC provides these documents online, so if you have internet access, that’s the quickest way to get them. If you prefer a good old-fashioned paper copy, you (or your accountant) can request them by calling 0300 200 3310. You will just need to be mindful having to wait on these to be posted could delay your application being submitted.

Step-by-Step: How to Download Your Tax Calculations (SA302s)

1. Log into your HMRC account 👉 Gov.uk SA302 page
2. Scroll down and click Log In
3. Select ‘Self Assessment’ (if you’re only registered for Self Assessment, you’ll land here automatically)
4. Click ‘Get SA302 Tax Calculation for tax year [XXXX-XXXX]’
5. Click ‘Continue to your SA302’
6. Click ‘View your Calculation’
7. Scroll to the bottom and click ‘View and print your calculation’ (it should look something like below)
8. Select ‘Save as PDF’ and save it to a folder

✅ That’s your SA302 done—one document down!

Step-by-Step: How to Download Your Tax Year Overview

Mortgage lenders also require a Tax Year Overview to verify that your Tax Calculation (SA302) information matches HMRC’s records. This document shows how much tax you owe or have overpaid for a given tax year. Mortgage lenders will expect the figures to match on both before they will agree to a mortgage so if there is any discrepancies speak to your accountant to ensure the fixed as a matter of urgency to avoid delays to your mortgage application being assessed.

1. Log into your HMRC account 👉 Gov.uk SA302 page
2. Scroll down and click Log In
3. Select ‘Self Assessment’
4. Click ‘View Self Assessment return for tax year [XXXX-XXXX]’
5. Choose the tax year from the drop-down menu and click ‘Go’
6. Scroll down and click ‘Print your tax year overview’
7. Select ‘Save as PDF’ and save it to your folder

✅ Boom! You’ve got both documents sorted

Final Thoughts

Mortgage lenders aren’t known for their flexibility when it comes to paperwork, so make sure you have these documents ready before you submit your application. If you’re struggling, your accountant should be able to help—or you can always give HMRC a ring at 0300 200 3310 (just be prepared for some hold music).

Still looking for mortgage advice? Our expert team of mortgage adviser are on hand to assist you. You can book a complimentary mortgage consultation here.

Good luck with your mortgage application! 🎉