Paying Class 4 NICs

If you are self-employed and your profits are above £12,570, you may need to pay Class 4 National Insurance, so it is important to understand how the rates and rules apply to you.

Self-employed individuals are usually required to pay Class 4 National Insurance contributions (NICs) if their annual profits exceed £12,570. These contributions are calculated based on profits and are used to fund various state benefits, including the state pension, unemployment benefits and the National Health Service (NHS).

For the current 2025-26 tax year, Class 4 NIC rates are set at 6% on profits between £12,570 and £50,270, with an additional 2% charged on profits above £50,270.

Certain groups are exempt from paying Class 4 NICs, including:

  • Individuals under 16 at the start of the tax year.
  • Individuals over State Pension age at the start of the tax year. If someone reaches State Pension age during the tax year, they remain liable for Class 4 NICs for the entire tax year.
  • Trustees and guardians of incapacitated individuals are exempt from paying Class 4 NICs on that income.

The Class 4 NIC rate is lower than the corresponding rate for employees, who pay 8% on the same income levels. Both employees and the self-employed contribute 2% on income above the higher rate threshold.

The majority of individuals pay Class 4 National Insurance via self-assessment.

Source:HM Revenue & Customs | 27-10-2025
author avatar
Aitch
I'm Aitch, the Founder and CEO of CIGMA Accounting Ltd. As a Chartered Management Accountant and as a CIMA member, I've spent more than 16 years helping businesses, entrepreneurs, landlords, and individuals with tax planning, accounting, and HMRC compliance. As a chartered accountant in London, I'm passionate about making complex tax matters easier to understand and helping clients make confident financial decisions. Over the years, I've advised start-ups, SMEs, established companies, and high-net-worth individuals across a wide range of tax and accounting matters. My expertise includes Corporation Tax, Self-Assessment, Capital Gains Tax, Inheritance Tax planning, R&D tax relief, capital allowances, international tax, and resolving complex HMRC compliance issues. Whether clients need a business accountant, tax accountant, or strategic tax advisor, my focus is always on delivering practical advice that creates long-term value. One of my specialist areas is Making Tax Digital (MTD). I've worked extensively with businesses preparing HMRC's digital reporting requirements, helping them move to cloud accounting, improve financial processes, and adopt technology that makes compliance more efficient. I regularly speak at Making Tax Digital roadshows, industry events, and educational sessions in collaboration with Zoho Books, sharing practical insights into digital accounting, tax legislation, and the future of the profession. Many business owners looking for the best accounting firm in London are not simply searching for an accountant they're looking for trusted advice, responsive support, and long-term value. That's the approach I've taken in building CIGMA Accounting. My team and I work closely with businesses across London and the UK, providing accounting services, tax advisory, bookkeeping, payroll, VAT, company accounts, and strategic tax planning tailored to each client's goals. Through this website, I share practical guidance on UK taxation, Making Tax Digital, HMRC updates, Corporation Tax, Self-Assessment, and business finance. My aim is to provide reliable, straightforward information that helps business owners understand changing regulations, reduce compliance risks, and make informed financial decisions with confidence.

Paying Class 4 NICs

If you are self-employed and your profits are above £12,570, you may need to pay Class 4 National Insurance, so it is important to understand how the rates and rules apply to you.

Self-employed individuals are usually required to pay Class 4 National Insurance contributions (NICs) if their annual profits exceed £12,570. These contributions are calculated based on profits and are used to fund various state benefits, including the state pension, unemployment benefits and the National Health Service (NHS).

For the current 2025-26 tax year, Class 4 NIC rates are set at 6% on profits between £12,570 and £50,270, with an additional 2% charged on profits above £50,270.

Certain groups are exempt from paying Class 4 NICs, including:

  • Individuals under 16 at the start of the tax year.
  • Individuals over State Pension age at the start of the tax year. If someone reaches State Pension age during the tax year, they remain liable for Class 4 NICs for the entire tax year.
  • Trustees and guardians of incapacitated individuals are exempt from paying Class 4 NICs on that income.

The Class 4 NIC rate is lower than the corresponding rate for employees, who pay 8% on the same income levels. Both employees and the self-employed contribute 2% on income above the higher rate threshold.

The majority of individuals pay Class 4 National Insurance via self-assessment.

Source:HM Revenue & Customs | 27-10-2025
author avatar
Aitch
I'm Aitch, the Founder and CEO of CIGMA Accounting Ltd. As a Chartered Management Accountant and as a CIMA member, I've spent more than 16 years helping businesses, entrepreneurs, landlords, and individuals with tax planning, accounting, and HMRC compliance. As a chartered accountant in London, I'm passionate about making complex tax matters easier to understand and helping clients make confident financial decisions. Over the years, I've advised start-ups, SMEs, established companies, and high-net-worth individuals across a wide range of tax and accounting matters. My expertise includes Corporation Tax, Self-Assessment, Capital Gains Tax, Inheritance Tax planning, R&D tax relief, capital allowances, international tax, and resolving complex HMRC compliance issues. Whether clients need a business accountant, tax accountant, or strategic tax advisor, my focus is always on delivering practical advice that creates long-term value. One of my specialist areas is Making Tax Digital (MTD). I've worked extensively with businesses preparing HMRC's digital reporting requirements, helping them move to cloud accounting, improve financial processes, and adopt technology that makes compliance more efficient. I regularly speak at Making Tax Digital roadshows, industry events, and educational sessions in collaboration with Zoho Books, sharing practical insights into digital accounting, tax legislation, and the future of the profession. Many business owners looking for the best accounting firm in London are not simply searching for an accountant they're looking for trusted advice, responsive support, and long-term value. That's the approach I've taken in building CIGMA Accounting. My team and I work closely with businesses across London and the UK, providing accounting services, tax advisory, bookkeeping, payroll, VAT, company accounts, and strategic tax planning tailored to each client's goals. Through this website, I share practical guidance on UK taxation, Making Tax Digital, HMRC updates, Corporation Tax, Self-Assessment, and business finance. My aim is to provide reliable, straightforward information that helps business owners understand changing regulations, reduce compliance risks, and make informed financial decisions with confidence.