UK Class 2 + Class 4 NI: 2026/27

UK Class 2 + Class 4 NI Self-Employed 2026/27: Deep-Dive

Q: Is Class 2 NI still payable in 2026/27?

Not mandatory for self-employed earning above the Small Profits Threshold (SPT £7,105) since 6 April 2024. Spring Budget 2024 (and Autumn Statement 2023) abolished compulsory Class 2 NI for self-employed people. Voluntary Class 2 still available at £3.65/week (£189.80/year) - relevant ONLY if profits are below the SPT and you want to maintain State Pension entitlement without paying full Class 3 rates. Class 3 alternative : voluntary contributions for non-self-employed scenarios (e.g., living abroad, career breaks) cost £18.85/week 2026/27 - over 5x more expensive than Class 2. The auto-grant rule : self-employed people with profits between £7,105 (SPT) and £12,570 (LPL) automatically get NI credits without paying anything. So most low-income self-employed don't need voluntary Class 2. Voluntary Class 2 makes sense when: (a) profits genuinely below £7,105 SPT, (b) you want to bank a qualifying year for State Pension (need 35 years total), (c) you don't already have a full 35-year record.

Q: When do I pay Class 2 + Class 4 NI?

Both paid via Self Assessment as part of your annual tax return. Payment dates : January 31 following end of tax year - balancing payment for previous tax year PLUS first payment on account (POA) for current tax year. July 31 - second POA for current tax year. Worked example for 2026/27 : file SA return covering 6 April 2026 - 5 April 2027. Due January 31 2028 - balancing payment (true-up vs POA paid) AND first POA for 2027/28. July 31 2028 - second POA for 2027/28. Payment on Account mechanics : if previous year's IT + Class 4 NI > £1,000, HMRC requires POA. Each POA = 50% of previous year's IT + Class 4 (NOT Class 2 - Class 2 is excluded from POA calc). POA paid in advance toward current year liability. Class 2 voluntary contributions : paid separately via online HMRC portal or direct debit. NOT included in POA. Late payment penalties : 5% surcharge at 30 days, 6 months, 12 months. Interest from day 1 at base + 2.5%.

Q: Do I get NI credits if profits are below the SPT?

Not automatically . The auto-grant rule covers profits between SPT (£7,105) and LPL (£12,570). Below SPT : no automatic NI credit. You must EITHER pay voluntary Class 2 (£189.80/yr) OR qualify for credits via another route - e.g., Child Benefit claim with child under 12, carer's allowance, jobseeker's allowance, employment + support allowance, statutory sick pay receipt for the year. Why this matters : 35 qualifying years needed for full New State Pension (£241.30/week 2026/27). Missing years reduce pension proportionally - each missing year = £241.30 ÷ 35 = £6.89/week less pension for life. Voluntary Class 2 ROI : £189.80 buys ~£358/year extra pension (£6.89/wk × 52). Break-even after ~2 months of pension - massively favourable arithmetic. Check your record : gov.uk/check-state-pension shows years counted + gaps. Pre-2006 gaps can be backfilled until April 2028 deadline.

Q: How does NI for self-employed differ from employees?

Employee NI (Class 1) : paid through PAYE at source. Primary contributions 8% (employee) on £242-£967/week, 2% above. Secondary (employer) 15% on £96+/week. Tax-deductible to employer. Self-employed NI (Class 2 + Class 4) : paid via SA annual return, single annual payment cycle. Class 4 main rate 6% (vs 8% Class 1) - lower because self-employed don't benefit from employer's NI matching. Combined burden : employee + employer NI on £50k salary = ~£10,500 (8% + 15% averaged). Self-employed Class 4 on £50k profit = ~£2246. Self-employed NI is significantly LOWER than total employee+employer NI per £ of "earnings" - one reason gov has been narrowing the gap (Class 1 cut 12% → 8% April 2024). Benefits comparison : employees get JSA + sick pay + bereavement benefits + State Pension. Self-employed get State Pension + bereavement + ESA + maternity allowance - but NOT contribution-based JSA or SSP. The protection gap is the trade-off for lower NI.

Q: What about Class 4 NI on partnership income?

Partner profits are treated as self-employed income for NI purposes. Each partner pays Class 4 NI on their share of partnership profits as shown in SA800 partnership return + SA104 partnership pages of personal SA return. Class 2 voluntary : same SPT rule applies - if partner's allocated share is below £7,105, voluntary Class 2 needed for NI credit. Salaried partners : partners who receive "salary" but no profit share may be reclassified by HMRC under the Salaried Members Rules (Section 863A ITTOIA 2005) - then treated as employee for PAYE/NI. Three conditions for reclassification: (a) salary fixed or guaranteed; (b) no significant influence; (c) capital contribution under 25% of "salary". Triggers if all three met. LLP members : same Salaried Members Rules apply. Standard LLP members with profit-share equity treatment = Class 4 self-employed NI. Sleeping partners (no work): not liable for Class 4 - HMRC accepts as investment income (Section 14(1)(b) SSCBA 1992).

Q: Can Class 4 NI be reduced by losses or pension contributions?

Trading losses : yes - sideways set-off against other Class 4 income in same/prior year per loss-relief rules (Sections 64 + 72 ITA 2007). Carry-forward losses reduce future Class 4 profits. Pension contributions : NOT directly deductible for Class 4 (unlike IT). Pension reduces taxable income for IT, but Class 4 is calculated on net trading profit BEFORE pension contributions. Trading allowance : £1,000 trading allowance can be used INSTEAD of expenses if gross income £1k-£1,000. Reduces profit dollar-for-dollar for both IT + Class 4 purposes. Capital allowances + AIA : deductible at trading-profit level - reduces Class 4 base. Capital gains : not subject to Class 4 (CGT regime instead). Investment income : not subject to Class 4 (dividend tax / savings tax regime). Strategic implication : pension contributions reduce IT but not Class 4 - so they're slightly less valuable for self-employed than for employees (who get NI relief on sacrificed pension too). Despite this, self-employed still benefit from pension contributions via IT relief at marginal rate + tax-free growth + 25% PCLS at retirement.

Q: What happens if I have both employment and self-employment?

Both NI regimes run in parallel . Class 1 from employment (via PAYE), Class 2 voluntary + Class 4 from self-employment (via SA). Annual maximum cap : combined NI capped at the Class 1 + Class 4 main-rate maximum + 2% upper-rate components. If you've paid maximum Class 1 from employment, Class 4 main rate is REDUCED via deferment / refund mechanism. Deferment application (form CA72A) : ask HMRC to defer collection of Class 4 if your Class 1 + Class 4 main combined would exceed annual maximum. Refund : if you've overpaid combined NI in a tax year, claim refund via Section 76 SSCBA 1992 - HMRC pays back the over-the-cap excess. Worked combined : £30k employee salary (Class 1 paid via PAYE) + £20k self-employed profit. Class 4 on £20k = (£20,000 - £12,570) × 6% = £446 (only if profits exceed LPL - check). If profits + employment salary together = £50k, you're in main band only - no annual maximum issue. Common pitfall : directors of own LTD company sometimes pay salary + take SA self-employed income on side - file deferment if combined > UEL.

Q: When should I register for Self Assessment for self-employment?

By 5 October following the tax year in which you started self-employment. Worked example : start self-employment 1 May 2026 (tax year 2026/27). Register by 5 October 2027. Penalty for late registration: failure to notify under Schedule 41 FA 2008 - based on % of "potential lost revenue", min £100 fixed penalty, escalating to 30%/70%/100% bands for careless/deliberate/concealed. How to register : gov.uk/register-for-self-assessment - online via Government Gateway. Need UTR (Unique Taxpayer Reference) for future filings. Also automatically registers you for Class 2 voluntary contributions if you opt in. Trading allowance threshold : gross trading income under £1,000/year = no SA registration required (covered by trading allowance automatically). Above £1,000 = SA registration even if profits are small. What "starting" means : HMRC interpretation = first invoice issued / first commercial activity / first ad placed / professional services delivered. Preliminary research / planning typically doesn't count. Existing SA filer : if you already file SA for other reasons (e.g., landlord, HICBC) you don't re-register - just add SA103S (or SA103F if income > £85k VAT threshold) pages to existing return.

Complete National Insurance guide for UK self-employed in 2026/27. Class 2 NI - voluntary only since April 2024 reform, £3.65/week for profits below £7,105 Small Profits Threshold. Class 4 NI - 6% main rate on £12,570-£50,270 band + 2% upper rate above. Auto-grant NI credits between SPT and LPL preserve State Pension entitlement. 4 worked scenarios from £5k to £75k profit. Payment cycle via Self Assessment January 31 + July 31. State Pension 35-year rule. Pre-April-2028 backfill deadline. Statute - Social Security Contributions and Benefits Act 1992.

2026/27 self-employed NI at a glance

Class 2 (voluntary)

£3.65/wk

£189.80/year if profits < £7,105

Class 4 main rate

£12,570 - £50,270 profits

Class 4 upper rate

Profits above £50,270

SPT (auto-credit floor)

£7,105

Below = no NI credit unless voluntary

4 worked NI scenarios

Scenario	Profit	Class 2	Class 4	Total NI	NI credit
Low-profit self-employed (£5,000) Below SPT £7,105. Voluntary Class 2 £189.80/yr secures State Pension qualifying year. Without it, no NI credit at this profit level.	£5,000	£190	-	£190	Yes
Side-hustler (£10,000 profit) Profits between SPT (£7,105) and LPL (£12,570). Auto-grant NI credit. No Class 2 or Class 4 due.	£10,000	-	-	£0	Yes
Mid-range self-employed (£30,000) Class 4 main rate on £17,430 = £1046. No Class 2 mandatory (post-April 2024). Auto-grant NI credit.	£30,000	-	£1,046	£1,046	Yes
High earner (£75,000) Class 4 6% on £37,700 (full band) = £2262 + 2% on £24,730 = £495. Total £2757.	£75,000	-	£2,757	£2,757	Yes

The April 2024 NI reform - what changed for self-employed

Spring Budget 2024 (announced 6 March 2024) + Autumn Statement 2023 (22 November 2023) implemented the biggest self-employed NI cut in two decades. Class 2 mandatory contributions abolished; Class 4 main rate cut from 9% to 6%; auto-grant NI credits introduced for the SPT - LPL band.

Element	Pre-April 2024	2026/27	Effect
Class 2 (mandatory)	£3.45/wk	Abolished	~£180/yr saved
Class 4 main rate	9%	6%	3pp cut, ~£1,130 saved on £50k profit
Class 4 upper rate	2%	2%	Unchanged
NI credit auto-grant	No	SPT - LPL band	Free State Pension entitlement preservation

State Pension entitlement - 35-year rule

Full New State Pension (£241.30/wk 2026/27) requires 35 qualifying years of NI contributions or credits. Fewer years = proportional reduction (each missing year ≈ £6.89/wk less for life). Minimum 10 years for ANY pension.

Profit < £7,105 (SPT)

Voluntary Class 2 £189.80/yr buys qualifying year. ROI ~1,500% over lifetime.

£7,105 - £12,570 (auto-band)

Free NI credit. No payment needed. Best zone for low-profit self-employed.

Profit > £12,570

Class 4 paid + automatic NI credit. Standard self-employed taxpayer.

Backfill deadline 5 April 2028: pre-April-2006 gaps can be filled until this date (extended from April 2025 by Spring Budget 2024). After deadline, only last 6 years backfillable. Check your record at gov.uk/check-state-pension.

Self Assessment payment cycle

Class 2 voluntary + Class 4 paid via SA return. Two payment dates per year.

Date	Payment	Notes
31 January	Balancing payment for prior year + 1st POA for current year	SA online return must be filed by this date (paper deadline 31 Oct previous year)
31 July	2nd POA for current year	Each POA = 50% of prior year's IT + Class 4 (Class 2 excluded from POA)
5 October	SA registration deadline	For new self-employed - by 5 October of tax year FOLLOWING the year you started

Frequently asked questions

Is Class 2 NI still payable in 2026/27?

Not mandatory for self-employed earning above the Small Profits Threshold (SPT £7,105) since 6 April 2024. Spring Budget 2024 (and Autumn Statement 2023) abolished compulsory Class 2 NI for self-employed people. Voluntary Class 2 still available at £3.65/week (£189.80/year) - relevant ONLY if profits are below the SPT and you want to maintain State Pension entitlement without paying full Class 3 rates. Class 3 alternative: voluntary contributions for non-self-employed scenarios (e.g., living abroad, career breaks) cost £18.85/week 2026/27 - over 5x more expensive than Class 2. The auto-grant rule: self-employed people with profits between £7,105 (SPT) and £12,570 (LPL) automatically get NI credits without paying anything. So most low-income self-employed don't need voluntary Class 2. Voluntary Class 2 makes sense when: (a) profits genuinely below £7,105 SPT, (b) you want to bank a qualifying year for State Pension (need 35 years total), (c) you don't already have a full 35-year record.

How does Class 4 NI work for 2026/27?

Class 4 is the main National Insurance liability for self-employed. Two-band structure: (a) main rate 6% on profits between £12,570 (Lower Profits Limit) and £50,270 (Upper Profits Limit); (b) upper rate 2% on profits above £50,270. Calculation: profits are from self-employment + partnership income only (NOT investment / rental / employment income). Profits adjusted by trading allowance, capital allowances, expenses. Worked example: £50,000 profit. Class 4 = (£37,700 - £0) × 6% = £2262.00 (assuming profit fully in main band)... wait actually £50,000 is below UPL £50,270, so: (£50,000 - £12,570) × 6% = £2246. Historical context: Class 4 main rate was 9% pre-April 2024; reduced to 6% from 6 April 2024 (Spring Budget 2024). Combined with Class 2 abolition, this is the biggest self-employed NI cut in two decades.

When do I pay Class 2 + Class 4 NI?

Both paid via Self Assessment as part of your annual tax return. Payment dates: January 31 following end of tax year - balancing payment for previous tax year PLUS first payment on account (POA) for current tax year. July 31 - second POA for current tax year. Worked example for 2026/27: file SA return covering 6 April 2026 - 5 April 2027. Due January 31 2028 - balancing payment (true-up vs POA paid) AND first POA for 2027/28. July 31 2028 - second POA for 2027/28. Payment on Account mechanics: if previous year's IT + Class 4 NI > £1,000, HMRC requires POA. Each POA = 50% of previous year's IT + Class 4 (NOT Class 2 - Class 2 is excluded from POA calc). POA paid in advance toward current year liability. Class 2 voluntary contributions: paid separately via online HMRC portal or direct debit. NOT included in POA. Late payment penalties: 5% surcharge at 30 days, 6 months, 12 months. Interest from day 1 at base + 2.5%.

Do I get NI credits if profits are below the SPT?

Not automatically. The auto-grant rule covers profits between SPT (£7,105) and LPL (£12,570). Below SPT: no automatic NI credit. You must EITHER pay voluntary Class 2 (£189.80/yr) OR qualify for credits via another route - e.g., Child Benefit claim with child under 12, carer's allowance, jobseeker's allowance, employment + support allowance, statutory sick pay receipt for the year. Why this matters: 35 qualifying years needed for full New State Pension (£241.30/week 2026/27). Missing years reduce pension proportionally - each missing year = £241.30 ÷ 35 = £6.89/week less pension for life. Voluntary Class 2 ROI: £189.80 buys ~£358/year extra pension (£6.89/wk × 52). Break-even after ~2 months of pension - massively favourable arithmetic. Check your record: gov.uk/check-state-pension shows years counted + gaps. Pre-2006 gaps can be backfilled until April 2028 deadline.

How does NI for self-employed differ from employees?

Employee NI (Class 1): paid through PAYE at source. Primary contributions 8% (employee) on £242-£967/week, 2% above. Secondary (employer) 15% on £96+/week. Tax-deductible to employer. Self-employed NI (Class 2 + Class 4): paid via SA annual return, single annual payment cycle. Class 4 main rate 6% (vs 8% Class 1) - lower because self-employed don't benefit from employer's NI matching. Combined burden: employee + employer NI on £50k salary = ~£10,500 (8% + 15% averaged). Self-employed Class 4 on £50k profit = ~£2246. Self-employed NI is significantly LOWER than total employee+employer NI per £ of "earnings" - one reason gov has been narrowing the gap (Class 1 cut 12% → 8% April 2024). Benefits comparison: employees get JSA + sick pay + bereavement benefits + State Pension. Self-employed get State Pension + bereavement + ESA + maternity allowance - but NOT contribution-based JSA or SSP. The protection gap is the trade-off for lower NI.

What about Class 4 NI on partnership income?

Partner profits are treated as self-employed income for NI purposes. Each partner pays Class 4 NI on their share of partnership profits as shown in SA800 partnership return + SA104 partnership pages of personal SA return. Class 2 voluntary: same SPT rule applies - if partner's allocated share is below £7,105, voluntary Class 2 needed for NI credit. Salaried partners: partners who receive "salary" but no profit share may be reclassified by HMRC under the Salaried Members Rules (Section 863A ITTOIA 2005) - then treated as employee for PAYE/NI. Three conditions for reclassification: (a) salary fixed or guaranteed; (b) no significant influence; (c) capital contribution under 25% of "salary". Triggers if all three met. LLP members: same Salaried Members Rules apply. Standard LLP members with profit-share equity treatment = Class 4 self-employed NI. Sleeping partners (no work): not liable for Class 4 - HMRC accepts as investment income (Section 14(1)(b) SSCBA 1992).

Can Class 4 NI be reduced by losses or pension contributions?

Trading losses: yes - sideways set-off against other Class 4 income in same/prior year per loss-relief rules (Sections 64 + 72 ITA 2007). Carry-forward losses reduce future Class 4 profits. Pension contributions: NOT directly deductible for Class 4 (unlike IT). Pension reduces taxable income for IT, but Class 4 is calculated on net trading profit BEFORE pension contributions. Trading allowance: £1,000 trading allowance can be used INSTEAD of expenses if gross income £1k-£1,000. Reduces profit dollar-for-dollar for both IT + Class 4 purposes. Capital allowances + AIA: deductible at trading-profit level - reduces Class 4 base. Capital gains: not subject to Class 4 (CGT regime instead). Investment income: not subject to Class 4 (dividend tax / savings tax regime). Strategic implication: pension contributions reduce IT but not Class 4 - so they're slightly less valuable for self-employed than for employees (who get NI relief on sacrificed pension too). Despite this, self-employed still benefit from pension contributions via IT relief at marginal rate + tax-free growth + 25% PCLS at retirement.

What happens if I have both employment and self-employment?

Both NI regimes run in parallel. Class 1 from employment (via PAYE), Class 2 voluntary + Class 4 from self-employment (via SA). Annual maximum cap: combined NI capped at the Class 1 + Class 4 main-rate maximum + 2% upper-rate components. If you've paid maximum Class 1 from employment, Class 4 main rate is REDUCED via deferment / refund mechanism. Deferment application (form CA72A): ask HMRC to defer collection of Class 4 if your Class 1 + Class 4 main combined would exceed annual maximum. Refund: if you've overpaid combined NI in a tax year, claim refund via Section 76 SSCBA 1992 - HMRC pays back the over-the-cap excess. Worked combined: £30k employee salary (Class 1 paid via PAYE) + £20k self-employed profit. Class 4 on £20k = (£20,000 - £12,570) × 6% = £446 (only if profits exceed LPL - check). If profits + employment salary together = £50k, you're in main band only - no annual maximum issue. Common pitfall: directors of own LTD company sometimes pay salary + take SA self-employed income on side - file deferment if combined > UEL.

When should I register for Self Assessment for self-employment?

By 5 October following the tax year in which you started self-employment. Worked example: start self-employment 1 May 2026 (tax year 2026/27). Register by 5 October 2027. Penalty for late registration: failure to notify under Schedule 41 FA 2008 - based on % of "potential lost revenue", min £100 fixed penalty, escalating to 30%/70%/100% bands for careless/deliberate/concealed. How to register: gov.uk/register-for-self-assessment - online via Government Gateway. Need UTR (Unique Taxpayer Reference) for future filings. Also automatically registers you for Class 2 voluntary contributions if you opt in. Trading allowance threshold: gross trading income under £1,000/year = no SA registration required (covered by trading allowance automatically). Above £1,000 = SA registration even if profits are small. What "starting" means: HMRC interpretation = first invoice issued / first commercial activity / first ad placed / professional services delivered. Preliminary research / planning typically doesn't count. Existing SA filer: if you already file SA for other reasons (e.g., landlord, HICBC) you don't re-register - just add SA103S (or SA103F if income > £85k VAT threshold) pages to existing return.

How does Class 2/Class 4 NI interact with State Pension entitlement?

Each qualifying year contributes 1/35 to the New State Pension. 35 years = full pension £241.30/week (2026/27). Fewer years = proportional reduction; minimum 10 years for ANY pension. How self-employed earn qualifying years: (a) profits between £7,105 SPT and £12,570 LPL = AUTO-GRANT (free credit); (b) profits above £12,570 LPL = Class 4 paid + auto-grant; (c) profits below £7,105 SPT = need voluntary Class 2 or Class 3 contributions for credit. Single-year cost benefits: voluntary Class 2 (£189.80/yr) vs lifetime additional pension (~£358/yr from age 67 to ~85 = ~£6,400 over typical retirement). 1,500%+ ROI. Voluntary Class 3 (£18.85/wk = £980.20/yr) - higher cost but still ~650% ROI. Backfilling gaps: pre-April 2006 gaps can be backfilled until 5 April 2028 (extended deadline announced in Spring Budget 2024). After 5 April 2028, only last 6 years backfillable under standard rules. Strategy: check gov.uk/check-state-pension annually. If gaps + budget allows, backfill aggressively before 2028 deadline.

Are there any NI exemptions or reductions for self-employed?

Exemptions: (a) under-16s - no NI liability; (b) above State Pension Age (currently 66) - no Class 4 NI (but still pay IT if profits in band); (c) Section 11 SSCBA 1992 special cases - share fishermen on percentage scheme, volunteer development workers; (d) Crown / NATO employees - covered by employer scheme. Reductions: deferment for parallel employment + self-employment (form CA72A). Married women's reduced rate: legacy pre-1977 election - virtually no eligible women remain. Class 4 ceiling: profits above £50,270 taxed at 2% (rather than 6%) - effectively a cap on the marginal NI rate (Class 1 has same structure - 2% above UEL). Health Service / Public Sector exemptions: none in 2026/27. Pre-1990 GP "principal" exemption removed long ago. NIC Holiday: not currently in force for self-employed. Employment Allowance £10,500: only available to EMPLOYERS to offset secondary Class 1 NIC - does NOT reduce self-employed Class 4.

What records must self-employed keep for NI purposes?

Statutory 5-year retention (Section 12B TMA 1970) from the SA filing deadline. Required records: (a) all business income receipts/invoices with date + payer + amount + nature; (b) all business expenses receipts/invoices similarly detailed; (c) business bank account statements (separate from personal recommended); (d) cash takings book if cash-handling; (e) VAT records if registered; (f) PAYE records if you employ anyone; (g) mileage log if claiming motor expenses; (h) home-office calculation method + records; (i) capital expenditure receipts for AIA claims. Digital records: HMRC accepts electronic records. From April 2026 (MTD ITSA): self-employed with income > £50k must keep DIGITAL records using approved software + submit quarterly updates. April 2027: > £30k. April 2028: > £20k (announced Autumn Budget 2024). Penalties for missing records: £3,000 fine under Section 12B(5) TMA 1970. More commonly, HMRC raises "best of judgment" assessment estimating profits - usually higher than actual. Practical advice: spreadsheet + bank feed download + digital receipt capture (FreeAgent, QuickBooks, Xero) - one-off setup pays for itself in saved compliance time + reduced enquiry risk.