If you are self-employed and applying for a mortgage, one of the first documents your lender will ask for is an SA302 tax calculation from HMRC. This document is essential proof of your declared income, yet many people are unsure how to obtain it. This step-by-step guide explains exactly how to get your SA302 from HMRC online, what to do if you encounter problems, and the alternative ways to obtain this crucial document.
What Is an SA302?
An SA302 is a document produced by HMRC that shows your total declared income and the tax calculated for a specific tax year. It is generated from the information on your Self Assessment tax return and serves as official evidence of your earnings. Mortgage lenders rely heavily on SA302s to verify the income of self-employed applicants, freelancers, and anyone with untaxed income sources.
Alongside the SA302, you will also need the tax year overview — a separate HMRC document that confirms your tax position for the same period and shows whether your tax has been paid. Most lenders require both documents together.
How to Download Your SA302 from HMRC Government Gateway
The quickest and easiest way to get your SA302 is through your HMRC online account via the Government Gateway. Follow these steps:
Step 1: Log In to Your HMRC Account
Visit the HMRC website and sign in to your personal tax account using your Government Gateway user ID and password. If you do not have a Government Gateway account, you will need to create one first — this requires your National Insurance number and some personal details for identity verification.
Step 2: Navigate to Self Assessment
Once logged in, go to your Self Assessment section. You should see an overview of your tax returns and any outstanding actions. Look for the option labelled "View your calculation" or "Get your SA302 tax calculation" — the exact wording may vary depending on the current HMRC interface.
Step 3: Select the Tax Year
Choose the tax year you need the SA302 for. Most mortgage lenders require SA302s for the last 2 to 3 complete tax years. For example, if you are applying in 2025, you would typically need SA302s for the 2023/24 and 2022/23 tax years, and possibly 2021/22 as well.
Step 4: View and Print Your SA302
Click to view the tax calculation for your chosen year. HMRC will display a summary showing your total income, allowances, and the tax due. You can then:
- Print it directly using your browser's print function (Ctrl+P or Cmd+P)
- Save it as a PDF by selecting "Save as PDF" in your print dialogue
Most mortgage lenders now accept printed versions from HMRC online, and many will also accept a PDF emailed directly to them.
Step 5: Download Your Tax Year Overview
While still in your Self Assessment account, navigate to "View your tax year overview" for the same tax year. This document confirms that the figures match and shows your payment status. Print or save this alongside your SA302 — lenders almost always require both documents.
What If You Cannot Access Your HMRC Online Account?
There are several reasons you might be unable to access your SA302 online:
Forgotten Login Details
If you have forgotten your Government Gateway user ID or password, you can recover them through the HMRC website. You will need to verify your identity, which may involve answering security questions or receiving a code by text or post.
Account Not Set Up for Self Assessment
If you have never enrolled your Self Assessment with your Government Gateway account, you will need to add Self Assessment to your online services. This can take up to 7 working days, as HMRC sends an activation code by post.
Tax Return Not Yet Filed
Your SA302 is only available once your tax return for that year has been submitted and processed. If you have not yet filed your return, the SA302 will not be available. File your return as soon as possible, and the SA302 should appear within 72 hours of processing.
Technical Issues
HMRC's online systems occasionally experience downtime or technical problems. If you cannot access the site, try again later or contact HMRC directly for assistance.
Alternative Ways to Get Your SA302
Request by Phone from HMRC
You can call HMRC's Self Assessment helpline and request that an SA302 be posted to you. This typically takes 7 to 10 working days. Have your UTR (Unique Taxpayer Reference) number ready when you call.
Through Your Accountant
If you use an accountant or tax agent, they can access your SA302 through their agent services account with HMRC. Many accountants can download and provide your SA302 much faster than requesting it yourself, especially if they are already registered as your tax agent.
Some mortgage lenders also accept an accountant's certificate or tax computation prepared by a qualified accountant as an alternative to the HMRC SA302. Check with your lender to see if this is acceptable.
Commercial Software
If you filed your tax return using commercial accounting software (such as Xero, FreeAgent, or QuickBooks), you may be able to generate a tax calculation directly from the software. Some lenders accept these printed calculations, though many still prefer the official HMRC version.
Which Lenders Accept Online SA302s?
The vast majority of UK mortgage lenders now accept SA302s printed or saved from the HMRC online portal. Previously, some lenders required the original posted version, but this has become increasingly rare. Always confirm with your specific lender or mortgage broker which format they prefer.
Common SA302 Questions
How many years of SA302 do I need?
Most mortgage lenders require 2 years. Some may ask for 3 years, particularly for larger loans or if your income has fluctuated significantly.
Do I need the tax year overview as well?
Yes. Almost all lenders require the SA302 and the tax year overview as a pair. The overview confirms that the figures are genuine and that your tax is up to date.
Can I use my SA302 for renting?
Yes. Landlords and letting agents increasingly accept SA302s as proof of income for self-employed tenants. Pair it with recent bank statements for the strongest application.
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