Self-employed: how to pay National Insurance

If you pay through Self Assessment

Most self-employed people pay NI as part of their Self Assessment tax bill.

You need to pay 2 types of National Insurance if you’re self-employed:

  • Class 2 - if your profits are £6,205 or more a year;
  • Class 4 - if your profits are £8,424 or more a year;

For the 2018-2019 tax year, the National Insurance contributions rates are:

  • Class 2: £2.95 a week;
  • Class 4: 9% on profits between £8,424 and £46,350 and 2% on profits over £46,350

If you don’t pay through Self Assessment

You don’t pay through Self Assessment if you’re:

  • an examiner or another person who sets exam questions;
  • running a businesses involving property;
  • a minister of religion who doesn’t receive a salary;
  • living overseas;
  • a private investor;
  • a non-UK resident who’s self-employed in the UK;

You can still make voluntary Class 2 National Insurance payments - for example to make sure you get the full State Pension or to cover gaps in your NI record.

If you don’t have a National Insurance number

Most UK residents receive their National Insurance number (NINO) automatically just before their 16th birthday.

If you just moved to the UK , you likely don’t have one.

Here's how to get it:

  1. Call the National Insurance number line: 0800 141 2075 and make an appointment for an interview.
  2. You'll receive you a letter confirming it.
  3. Prepare your documents: passport, residence permit, driving licence, and invoices, client details, expense receipts, if you've already started working as a self-employed.
  4. Go to the interview and explain why you need a NINO, for example if you’re looking for a job or planning to start a sole trader business.
  5. The HMRC will send you your NINO (or a refusal letter) within 6 weeks.

If you lost your NINO

You can find your National Insurance number on your payslip, P60, or any letter from the HRMC.

If you still cannot find it, fill in form CA5403 and send it to the HMRC. You'll receive your NINO by post within 15 working days.

Need help with your tax return?

Get your self assessment prepared for you online by certified accountants for £99

Online self assessment preparation assisted by professional accountants

How TaxScouts works

Simple online tax assessment

1. Simple online tax assessment

Our online tax-bot will go over your tax situation and will make sure you won’t overpay your taxes.

Chat to human advisors

2. Chat to human advisors

You can talk to one of our tax assistants at any time during the process when you have any questions.

We’ll sort your documents online

3. We’ll sort your documents online

We’ll tell you exactly what documents you need and sort them for you online. You just upload them or snap a picture with your phone.

Everything gets prepared for you

4. Everything gets prepared for you

Your certified accountant will go over your details & prepare your tax return for you to review. It will be filed on your behalf once you approve it.

"Absolutely outstanding"
Absolutely outstanding service - very quick turnaround, all my questions answered almost immediately and brilliant value.
Aimee J
"Smooth and easy process"
Smooth and easy process. Will use every year! Very helpful staff as well!
Oliver James Windle
"Superb app, team & accountant"
They sorted everything for me. A pleasure to do taxes this way!
Henrik B

Who our service is for

First time tax filers

We have a simple online service that guides you through the entire process. Regardless of your reasons for doing your tax return we'll help you get it done right.

Construction workers

We'll prepare your self assessment and help to maximise your CIS tax refund. We have the lowest fees in the industry and you don't have to pay up front if you're eligible for a refund.

People living overseas

Our service allows people living abroad to prepare their income tax return online. We are able to process all returns regardless of your current country of residence.

Company directors

UK company directors are required to file their self assessment annually. TaxScouts handles this through a simple online process.


Long Lets, Airbnb, Capital Gains. TaxScouts will sort out your self assessment and take away the worry of tracking all the recent tax changes.


TaxScouts ensures the self employed don't overpay on their taxes. We'll help you benefit from all the tax breaks and deductions that can be applied to your return.

And for everyone else who needs to do their self assessment

At TaxScouts we appreciate that tax returns are highly individual. Before you get assigned an accountant we make sure to understand your circumstances and help you build your optimal tax profile.

Let's start by creating your account
Let's get your taxes done

What will happen next

  • We'll guide you through a few questions about your income and suggest related tax deductions
  • Then we'll tell you what documents are needed
  • Finally certified accountant will prepare and file the tax return with HMRC for you
You are using an outdated web browser – TaxScouts works best with modern browsers. Please upgrade here.