If you’re applying for a mortgage as a first time buyer, home mover or remortgaging, you may be asked for an SA302 if you don’t have standard payslips. This is especially common if you’re self employed, a limited company director, a sole trader, or you have income from things like property or investments.

At Inca Financial, we help clients with this every day. It’s one of the most common documents lenders request when income isn’t straightforward, and different lenders can treat it in slightly different ways.

This guide explains what this document is and how to download your SA302 from HM Revenue & Customs quickly and without stress.

What is an SA302?

Keeping it simple, an SA302 is your official tax calculation from HMRC.

It shows:

• • Your total income for the tax year

• • How that income was calculated

• • How much tax you owe or have paid

It’s used as proof of income, especially if you don’t have payslips.

Mortgage lenders rely on it to assess affordability and approve your application.

Why you need an SA302 for a mortgage

Whether you’re buying your first home, moving house, remortgaging or borrowing more against your property you’ll need to prove your income.

If you’re self-employed, lenders usually ask for:

• • SA302 (tax calculation)

• • Tax Year Overview (HMRC confirmation of income)

Together, these documents give lenders a clear and trusted view of your earnings.

At Inca Financial, we use these every day to help clients get approved with the right property finance and mortgages.

Who needs an SA302?

You’ll likely need an SA302 if you are:

• • Self-employed (sole trader or limited company director)

• • A freelancer or contractor

• • Someone with multiple income streams

• • Applying for a mortgage or remortgage

• • Someone who has properties in their personal name

If you’re employed and paid via PAYE, you usually won’t need one.

What you need before you start

Before downloading your SA302, make sure you have:

• • Government Gateway login details

• • Your Unique Taxpayer Reference (UTR) (your tax ID number)

• • A completed Self Assessment tax return

Important: It can take up to 72 hours after submitting your tax return for your SA302 to appear.

Step-by-step guide on how to download your SA302

Step 1: Log in to HMRC

Sign in to your account using your Government Gateway credentials via HM Revenue & Customs.

Step 2: Go to Self Assessment

Select: “Self Assessment”, then click “More Self Assessment details “.

Step 3: Choose the correct tax year

Select the tax year your mortgage lender has requested (usually the last 1-3 years).

Step 4: View your tax calculation

Click: “View your calculation”
This is your SA302.

Step 5: Download or print

Select: “Print your full calculation”

Save it as a PDF so you can send it to your mortgage broker or lender.

Don’t forget the Tax Year Overview

Most lenders will also ask for your Tax Year Overview.

You can download it in the same section of your HMRC account.

It confirms your tax return has been submitted and HMRC agrees with the figures shown.

We always recommend downloading this alongside your SA302 to avoid delays.

How far back can you get SA302s?

You can usually access up to 4 years of SA302 documents online.

This is useful if:

• • You’re a first-time buyer building your mortgage application

• • You’re remortgaging

• • You’re increasing your borrowing

Most lenders focus on the last 2-3 years of income history for self-employed applicants.

Final tip (don’t skip this)

Your SA302 is one of the most important documents in your mortgage application if you’re self-employed.

If anything looks wrong or unclear, get it checked early it could save you weeks of delays later.

How Inca Financial can help

At Inca Financial, we specialise in helping everyone whether you’re a first time buyer, home mover, remortgage client, property investor or self employed in any form. We support you by helping you understand exactly what documents you need, checking your SA302 before anything is submitted, and matching you with lenders who properly understand your income.

We make sure everything is set up correctly from the start. Whether your situation is straightforward or more complex, we’re here to guide you through it properly. We don’t just submit applications, we work with you through the whole process and make sure your property finance and mortgage actually works for you, not the other way around. It all starts with a quick call.

If you’re unsure about your SA302 or getting ready to apply for a mortgage, we can help you understand what lenders will be looking for before you submit anything. At Inca Financial, we regularly work with self employed clients, limited company directors, sole traders and property investors whether your properties are held personally or through a business structure.

Every case is a bit different, and that’s exactly what we deal with day in, day out. Whatever your setup looks like, we’ll help you make sense of it and keep things moving smoothly so you can move forward with confidence.

Disclaimer
This guide is for general information only and does not constitute financial or mortgage advice. Every situation is different, and lender criteria can change. Always seek personalised advice before making any financial decisions.