If you are self-employed in the UK, understanding your National Insurance contributions for 2026/27 is essential as there is no employer to handle it for you. Unlike employees whose contributions are deducted automatically through PAYE, sole traders and freelancers calculate, report and pay their own National Insurance contributions through Self-Assessment. The rules have also changed in recent years, particularly around Class 2, leaving many people unsure what they actually owe.
For 2026–27, self-employed National Insurance contributions divide into two classes. Class 2 is now treated as automatically credited if profits exceed the Small Profits Threshold of £7,105, following the abolition of the mandatory flat-rate payment from April 2024. Class 4 is charged at 6% on profits between £12,570 and £50,270 and 2% on profits above £50,270. Both are reported through Self-Assessment as part of the annual tax return.
Key Takeaways
- For 2026–27, self-employed individuals with profits above £7,105 receive Class 2 National Insurance credits automatically. The previous mandatory flat-rate weekly payment was abolished from April 2024, though voluntary contributions remain available to those who want them.
- Class 4 National Insurance contributions are charged at 6% on self-employed profits between £12,570 and £50,270 and at 2% on profits above £50,270, paid through the annual Self-Assessment tax return alongside income tax.
- Self-employed individuals with profits below £7,105 do not receive NIC credits automatically but can choose to pay voluntary Class 2 contributions at £3.65 per week to protect their National Insurance record and State Pension entitlement.
- National Insurance contributions for the self-employed are paid to HMRC through Self-Assessment. There is no separate payment mechanism and the deadline for payment is 31 January following the end of the tax year.
What National Insurance Contributions do the Self-Employed pay?
Self-employed people pay two types of National Insurance: Class 2 and Class 4. For NIC purposes, profits means income from self-employment after deducting allowable business expenses, as reported on the Self-Assessment tax return.
Class 2 NIC builds entitlement to the State Pension and certain contributory benefits.
- Above £7,105: credits are awarded automatically no payment required
- Below £7,105: no automatic credit, but voluntary payments of £3.65 per week are available
Class 4 NIC is a percentage-based charge on profits above £12,570, collected through Self-Assessment. It does not build State Pension entitlement.
Self-Employed National Insurance Rates and Thresholds for 2026–27
Understanding which national insurance category applies to you is the starting point. The two relevant classes for self-employed individuals in 2026–27 are shown below.
The confirmed 2026–27 rates and thresholds from HMRC and the Social Security (Contributions) Regulations 2026 are set out below.
| NIC Class | Threshold | Rate | Who Pays |
|---|---|---|---|
| Class 2 | Profits above £7,105 (Small Profits Threshold) | Treated as paid automatically no charge | All self-employed above this threshold |
| Class 2 (voluntary) | Profits below £7,105 | £3.65 per week | Optional, to protect NI record |
| Class 4 (lower band) | Profits between £12,570 and £50,270 | 6% | All self-employed above the Lower Profits Limit |
| Class 4 (upper band) | Profits above £50,270 | 2% | All self-employed above the Upper Profits Limit |
- The Lower Profits Limit of £12,570 matches the income tax Personal Allowance for 2026–27
- Below £7,105, no NIC credits are awarded automatically this is where voluntary Class 2 becomes relevant
- All figures are confirmed by HMRC for the 2026 to 2027 tax year
How to calculate your Class 4 National Insurance Contributions?
Class 4 NIC is straightforward once you know your profit figure. You apply the relevant percentage to the portion of profits that falls within each band. There are two bands and each is calculated independently before the totals are added together.
For profits that fall entirely within the lower band, subtract £12,570 from your total profits and apply 6% to the result. For profits that extend above £50,270, apply 6% to the portion between £12,570 and £50,270 and 2% to everything above £50,270.
Example 1: A freelance graphic designer with profits of £35,000:
- 6% of (£35,000 − £12,570) = 6% of £22,430 = £1,345.80
- Profits do not reach £50,270, so the upper band does not apply
Example 2: A contractor with profits of £65,000:
- 6% of (£50,270 − £12,570) = 6% of £37,700 = £2,262.00
- 2% of (£65,000 − £50,270) = 2% of £14,730 = £294.60
- Total Class 4 NIC = £2,556.60
Note: Class 4 NIC is calculated by HMRC on the basis of the figures you submit in your Self-Assessment return. You do not calculate it separately. The return asks for your profit figure and HMRC calculates the NIC due from that.
Class 2 National Insurance: What has changed and What it means now?
April 2024 brought the most significant change to Class 2 NIC in years and it is still catching people out at Self-Assessment time.
Before April 2024:
Class 2 NIC was a mandatory flat-rate weekly charge £3.45 per week for 2023–24 paid through Self-Assessment by all self-employed people with profits above the Small Profits Threshold.
From April 2024 onwards:
The mandatory flat-rate Class 2 payment was abolished. Self-employed individuals with profits above the Small Profits Threshold of £7,105 are now treated as if they have paid Class 2 NIC. Their National Insurance record is protected automatically, with no payment required.
Voluntary Class 2 contributions:
Self-employed individuals with profits below £7,105 can still choose to pay voluntary Class 2 NIC at £3.65 per week for 2026–27. This is worth considering if protecting State Pension entitlement or eligibility for contributory benefits matters to them.
Maternity Allowance:
Class 2 credits also protect eligibility for Maternity Allowance – the main maternity benefit for self-employed women. Entitlement is based on your NIC history over a 66-week test period before your due date.
If profits fall below £7,105 and you skip voluntary Class 2, you risk losing qualifying weeks and your claim could be affected. At just £3.65 per week, voluntary contributions are worth considering if you are planning a family.
Important change from April 2026:
From 6 April 2026, you can no longer pay voluntary Class 2 National Insurance contributions for time abroad, only voluntary Class 3 contributions are available for periods overseas.
The cost difference is significant. Voluntary Class 2 cost just £3.65 per week. Class 3 costs £17.75 per week (£923/year) for 2025/26, rising to £18.40 per week (£956.80/year) for 2026/27.
Alongside this, new eligibility rules apply from April 2026. New applicants for voluntary Class 3 NIC must now demonstrate a stronger UK connection either 10 years of continuous UK residence or 10 years of UK NIC contributions. Previously, only 3 years were required.
If this affects you, check your NI record on GOV.UK and seek professional advice promptly
Why this caused confusion:
Many self-employed individuals filing their 2024–25 Self-Assessment for the first time noticed the absence of a Class 2 charge and assumed something was wrong. Nothing was. The system now awards the credit automatically.
How Self-Employed National Insurance Contributions Are Paid
Self-Assessment handles both Class 2 credits and Class 4 NIC in a single return there is no separate payment route for most self-employed people.
Key dates and rules:
- 31 January online Self-Assessment filing deadline and payment deadline for any Class 4 NIC owed
- 31 January and 31 July Payments on Account may also be due, as advance payments toward the following year’s combined tax and NIC bill
- Late payment HMRC charges interest and penalties on NIC paid late; filing on time is the most direct way to avoid an avoidable charge
Making Tax Digital (MTD): From April 2026
Under the new rules, qualifying taxpayers will no longer submit a single Self-Assessment tax return each year. Instead, they will keep digital records of income and expenses using approved software and submit quarterly updates to HMRC that summarise income and expenses.
Who does this affect right now?
From 6 April 2026, sole traders and landlords with qualifying income above £50,000 must join MTD for ITSA. From 6 April 2027, the threshold falls to £30,000. From 6 April 2028, it falls further to £20,000.
Does MTD change how NIC is calculated?
No, MTD does not alter when you pay your tax -only how and how often you report. Your Class 4 NIC is still calculated on the same profit figure – it is just reported differently.
HMRC operates a soft landing period for the first 12 months. No penalty points apply for late quarterly updates during 2026/27, but penalty points for late tax returns still apply.
If your turnover is near or above £50,000, check whether MTD-compatible software is in place before the next quarterly deadline.
National Insurance Contributions and your State Pension
Every year above the £7,105 threshold counts as a qualifying year toward the State Pension. The key numbers:
- 35 qualifying years required for the full new State Pension
- 10 qualifying years required to receive any State Pension at all
- £3.65 per week (around £189.80 per year) to buy a voluntary qualifying year if profits fall below £7,105
Gaps in the NI record can be filled by paying voluntary Class 2 or Class 3 contributions. Checking your record through the GOV.UK personal tax account before gaps become permanent is strongly recommended.
How to reduce your National Insurance Bill as a Self-Employed Person?
Class 4 NIC is calculated on profits, not turnover, which means there are legitimate ways to reduce the amount you owe.
Claim All Allowable Expenses:
Home office costs, business mileage, professional subscriptions and equipment are commonly missed. Every pound of legitimate expense reduces both income tax and Class 4 NIC. HMRC publishes guidance on allowable expenses for the self-employed.
Consider Incorporation:
Operating as a limited company can reduce the overall tax burden at higher profit levels, as director-shareholders pay Class 1 NIC only on salary, while dividends do not attract NIC.
From April 2025, however, the employer NIC rate increased to 15% and the secondary threshold reduced to £5,000, which means higher costs for companies paying director salaries. The Employment Allowance, worth up to £10,500, can offset some of this, although eligibility rules apply.
Incorporation can still be worthwhile, but the decision depends on a careful review of the numbers and professional advice should be taken before making the move.
Make Pension Contributions:
Contributions to a personal pension reduce your income tax bill by lowering taxable profit. However, they do not reduce your Class 4 NIC charge, as NIC is calculated before pension relief is applied. Pension contributions remain one of the most tax-efficient tools for sole traders just not for NIC specifically
Conclusion
For most self-employed individuals, national insurance contributions are manageable once the structure is clear. Class 4 is calculated through Self-Assessment on the basis of the relevant national insurance threshold for your profit level and Class 2 credits are awarded automatically above £7,105 no separate payment needed.
Those with profits below £7,105 should consider voluntary Class 2 contributions at £3.65 per week before gaps in the NI record accumulate. And for everyone, accuracy on the c return matters: the profit figure drives both the income tax bill and the Class 4 NIC charge.
Want to make sure your National Insurance contributions and Self-Assessment are handled correctly for 2026–27? DNS Cloud Co works with sole traders, freelancers and contractors across the UK to manage their tax obligations accurately and on time. Visit us to get started.
Frequently Asked Questions
What National Insurance do self-employed people pay in the UK?
Self-employed people pay Class 4 NIC on profits above £12,570 and receive Class 2 NIC credits automatically on profits above £7,105. Both are handled through Self-Assessment.
What is Class 2 National Insurance and do I still have to pay it?
Class 2 NIC is no longer a mandatory payment. From April 2024, credits are awarded automatically to self-employed individuals with profits above £7,105. Voluntary payments of £3.65 per week remain available below that threshold.
What is Class 4 National Insurance and how is it calculated?
Class 4 NIC is a percentage charge on self-employed profits: 6% on profits between £12,570 and £50,270 and 2% on profits above £50,270, calculated through Self-Assessment.
What are the Class 4 NIC rates for 2026–27?
Class 4 NIC rates for 2026–27 are 6% on profits between £12,570 and £50,270 and 2% on profits above £50,270.
What is the National Insurance threshold for self-employed people?
There are two key thresholds: the Small Profits Threshold of £7,105 for Class 2 credits and the Lower Profits Limit of £12,570 at which Class 4 NIC begins.
How do I pay National Insurance when self-employed?
Self-employed National Insurance is paid through the annual Self-Assessment tax return. There is no separate payment route. The deadline is 31 January following the tax year end.
Does self-employed National Insurance count towards the State Pension?
Yes, class 2 credits, awarded automatically above £7,105, count as qualifying years. You need 35 qualifying years for the full new State Pension.
How can I reduce my National Insurance contributions as a self-employed person?
Claim all allowable business expenses, make pension contributions to reduce your profit figure and take professional advice if considering incorporation.
Do I need an accountant to manage my National Insurance as a self-employed person?
You are not legally required to use one, but a qualified accountant can ensure your Self-Assessment profit figure is accurate, reducing both your NIC bill and the risk of errors.
What if I am both employed and self-employed?
If both employed and self-employed, employment income is taxed through PAYE, while self-employed income is reported via Self-Assessment. Tax is calculated on total combined income.
What is the self-employed tax rate in the UK for 2026–27?
For 2026–27, self-employed profits are taxed at 20%, 40% or 45% after allowance. National Insurance Contributions include Class 4 at 6% between thresholds and 2% above.
Divyanshi is a subject matter expert in the UK accounting space, creating clear and easy-to-read content for accountants and businesses. She covers topics such as VAT returns, Self-assessment tax, bookkeeping, business planning and Year-end accounts. By understanding the common challenges faced by accountants and business owners, she focuses on writing content that answers real questions and simplifies complex topics. Her approach keeps information clear, relevant and useful for everyday business needs.
