National Insurance Explained: Employee and Employer Rates 2026/27

National Insurance 2026/27: The Complete Guide

National Insurance (NI) is one of the UK's most misunderstood taxes. Many people see it simply as a second income tax — an additional payslip deduction with no visible benefit. In reality, NI is distinct from income tax: it directly affects your entitlement to the State Pension, Statutory Sick Pay, Statutory Maternity Pay, and contribution-based benefits. Understanding it properly matters both for personal finance planning and for business payroll management.

What National Insurance Funds

Unlike income tax, which goes into the general consolidated fund, NI contributions theoretically fund the National Insurance Fund — supporting:

• New State Pension (requires 35 qualifying years)
• Statutory Sick Pay and Statutory Maternity/Paternity Pay
• Contribution-based Jobseeker's Allowance
• New-style Employment and Support Allowance

Each year you earn above the Lower Earnings Limit (£6,708 in 2026/27) counts as a "qualifying year" towards your NI record. Whether you actually pay NI or just earn credits matters less than the qualifying year being recorded.

Employee NI Rates 2026/27

The drop from 8% to 2% above £50,270 is significant. Every £1,000 earned above the upper limit attracts only £20 in employee NI rather than £80 below it.

Employee NI Worked Examples

Example 1: £28,000 salary

• NI on £28,000 − £12,570 = £15,430
• £15,430 × 8% = £1,234/year (£102.87/month)

Example 2: £55,000 salary

• £12,571–£50,270 = £37,700 × 8% = £3,016
• £50,271–£55,000 = £4,730 × 2% = £94.60
• Total: £3,110.60/year (£259.22/month)

Example 3: £100,000 salary

• £12,571–£50,270 = £37,700 × 8% = £3,016
• £50,271–£100,000 = £49,730 × 2% = £994.60
• Total: £4,010.60/year (£334.22/month)

Employer National Insurance Rates 2026/27

Employer NI is the invisible employment tax. It never appears on an employee's payslip, yet represents one of the largest business costs of employing staff.

The 15% rate was introduced in April 2025 (raised from 13.8%) and continues into 2026/27.

Employer NI at Key Salary Levels

Employment Allowance 2026/27: £10,500

Eligible employers can reduce their employer NI bill by up to £10,500 per year. This was doubled from £5,000 in April 2025 to offset the increased NI rate.

Who qualifies:

• Employer NI bill was under £100,000 in the previous tax year
• Not a single-director company with no other employees
• Not a public authority

Claiming: Done via Employer Payment Summary (EPS) in your payroll software. Reduces monthly PAYE payments until the £10,500 is exhausted. Claim early — it applies to the current year only.

Zero-Rate Employer NI Exemptions

No employer NI on earnings up to £50,270 for:

• Employees under 21 — saves up to £6,176/year per person
• Apprentices under 25 — same saving applies
• Armed Forces veterans — first 12 months of civilian employment
• Freeport employees — on earnings up to £25,000 for 3 years

Income Tax vs National Insurance: Key Differences

Reducing Your NI Bill

Salary Sacrifice: Contractually reduces NI-liable pay. A £5,000 pension sacrifice saves the employee £400 in NI (8% × £5,000) and the employer £750 (15% × £5,000). Combined saving: £1,150.

Director salary strategy: Owner-directors can take £5,000 salary (zero employer NI) or a salary at or above the Lower Earnings Limit to preserve NI credits. At 19% corporation tax, the optimum depends on your total income picture.

Young employee hiring: The under-21 zero rate saves up to £6,176/year in employer NI per young worker. This is a genuine incentive to hire from this demographic.

Voluntary NI: Buying Extra State Pension Years

If you have gaps in your NI record, you can pay voluntary Class 3 contributions to fill them. Cost: £956.80/year in 2026/27. Each extra year normally adds roughly 1/35 of the full new State Pension to your eventual entitlement.

The exact payback period depends on your future State Pension rate and how long you draw it for, but for many people a missing year can still repay its cost relatively quickly. You can currently fill gaps back to 2006.

Frequently Asked Questions

Q: Do I still pay NI after State Pension age? No. Employee NI contributions cease when you reach State Pension age (66). Your employer's NI on your earnings continues.

Q: I earn below £12,570 — am I still building State Pension? If you earn between £6,708 and £12,570, you earn NI credits even though no NI is deducted. These count as qualifying years.

Q: I have two jobs — do I overpay NI? Yes, potentially. Each employment is assessed separately. If combined earnings significantly exceed £50,270, you may overpay. Apply for NI deferment or claim a refund at year end.

Q: What are the NI rates for the self-employed? Class 4: 9% on profits £12,570–£50,270, then 2%. Class 2 (voluntary) at £3.45/week maintains your NI record for State Pension purposes.