How to register self employed with HMRC

A step-by-step guide on registering as self-employed with HMRC

Chris Andreou CEO of Forma

by Chris Andreou

Published on

June 10, 2020

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From starting your side business to going freelance full-time, becoming self-employed can feel scary and exciting all at once. 

Before you jump right in, you need to ensure that you're staying on the right side of the law- and this begins with registering as self-employed with HMRC. In doing so, you can be sure that you're paying the right amount of income tax and National Insurance Contributions, and thereby avoid paying unnecessary financial penalties. 

Ready to get started? We've got all the information you need below:

What counts as being self-employed?

While it's pretty straightforward for most people, there are instances where your employment status isn't obvious. You're likely to be self-employed if the following factors apply:

  • You run your own business
  • You're able to decide when and how you work, as well as what you work on
  • You have the option of hiring other people
  • You have more than one client or customer concurrently
  • You aren't paid a regular wage or salary
  • You receive income that isn't taxed under PAYE for goods or services you provide 

It's also possible to be employed and self-employed at the same time, such as when you're doing freelance work on top of your day job.  

Tip: If you're still unsure, check out the HMRC Employment Status Indicator tool. You'll be asked a series of questions to determine your employment status. You can also call up HMRC to ask about your employment status. 

When should I register as self-employed?

You need to register as soon as you become self-employed. It doesn't matter if you haven't yet found work or brought in income, as HMRC considers your business to be in operation the moment you start actively seeking work-such as when you begin your marketing activities.  

If you fail to register within three months of starting your business, you'll be charged a fine of £100. Further delays may result in additional penalties. 

How do I register as self-employed?

You'll need to register as self-employed if you're setting up as a sole trader or partnership. You won't need to register if you're setting up a limited company, as you'll be considered as both the owner and an employee of the business. This process is more complicated, and we'll cover this in a separate article on setting up a limited company

As a sole trader, you can register: 

  • Online: Fill in this form if you've sent a return online before. If you haven't sent a return online previously, you'll need to register first. 
  • Or by post: Fill up this form, print it out and then post it to HMRC. 

If you're setting up a partnership, you can register:

A pile of self employed registration papers on the floor

What happens after I've registered?

As a self-employed individual, there are several key legal obligations you need to fulfil. These include: 

  • Paying your taxes on time: In addition to income tax, you'll also need to pay Class 2 and Class 4 National Insurance Contributions. These payments need to be made by 31st January and 31st July each year. 
  • Maintaining proper records: Fulfilling other legal obligations, such as filing your tax return correctly is made easier when you maintain proper records. Be sure to keep track of all sales and income, expenses, as well as payroll records if you have employees. Ensure that you've kept a copy of important documents-such as receipts, bank statements and invoices. After you've filed your tax return for a specific year, all relevant documents pertaining to that year must be kept for five years. That's because HMRC may ask to review these, and you can be fined for failing to keep records. 




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