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SA1

The SA1 form is the form that you need to use to register for Self Assessment with HMRC.

You have to register for Self Assessment if:

  • you have any untaxed income (for example, from self-employment, renting out a property, etc.), usually over £1,000
  • you want to claim a tax relief, for instance, SEIS/EIS
  • you earned over £100,000 in the last tax year (including from full-time employment), etc.

You can download the SA1 on HMRC’s website, if you want to register by post.

However, you can also register for Self Assessment online, in which case you don’t need to worry about this form. The link is on the same HMRC page.

Once you’ve registered for Self Assessment, you’ll receive a UTR number – also by post. You’ll need your UTR to file your tax return.

More guides & useful information

Let us sort your Self Assessment online. £119, all in.

That’s right. No matter how complicated it gets or why you need to do a return in the first place, it’ll cost £119 to get it done. That includes VAT, last-minute changes and all the support you may need.

How it works

1. Answer a few simple questions

And we mean a few. After a couple of minutes of answering questions online we’ll have everything we need to start working on your tax return.

2. Then get paired with a tax accountant

That’s right, you’ll be matched with a real accountant who is best suited to prepare your return. Plus, they’re on hand for questions whenever you need.

3. We file your Self Assessment for you

Once you’ve signed off your return, your TaxScouts accountant will file your return online with HMRC. That’s it! We told you it was simple.