Employer's National Insurance in 2026: What the Changes Mean for Your Payroll Costs

By John Thomas, Senior Accountant

Employer National Insurance is one of the largest costs many UK businesses carry, and the changes that took effect in April 2025 are still working their way through budgets and hiring plans. With the 2026-27 tax year now the planning horizon, it is worth a clear-headed look at what employer's NIC actually costs, how the Employment Allowance softens the blow, and the legitimate ways to manage the bill.

What changed and what it costs now

From 6 April 2025, two significant changes took effect. The rate of employer's National Insurance rose from 13.8% to 15%, and the secondary threshold, the point at which employers start paying, fell from £9,100 to £5,000 a year.

The threshold change matters as much as the rate rise. At £5,000, employer NIC starts biting much earlier in each employee's pay. For a full-time employee on £30,000, the annual employer NIC bill is now roughly £3,750, compared with about £2,884 under the old rules. Across a team of ten, that is an extra £8,000 to £9,000 a year of pure employment cost, before wages move at all.

Add the National Living Wage increases into the picture, and the total cost of employing people has risen sharply in two consecutive years. This is now a board-level budgeting issue, not a payroll admin detail.

The Employment Allowance: bigger, but check eligibility

The good news is that the Employment Allowance rose at the same time, from £5,000 to £10,500 a year, and the old £100,000 NIC bill cap on eligibility was removed. That means more small employers qualify, and those that do get a larger offset.

The allowance reduces your employer NIC bill pound for pound until it is used up, and it is claimed through your payroll software each tax year. A business with an employer NIC bill of £12,000 pays only £1,500 after the allowance. For micro-employers with one or two staff, it can wipe the bill out entirely.

The catch: connected companies share a single allowance, and there are still exclusions, including single-director companies with no other employees and employers of domestic staff. Check eligibility each year rather than assuming it carries over.

Five legitimate ways to manage the bill

1. Salary sacrifice for pensions. Swapping salary for employer pension contributions reduces the NIC-able pay for both employer and employee. It is one of the few levers that cuts employer NIC without cutting take-home pay, provided the scheme is set up correctly and employees understand it.

2. Review benefits versus cash. Some benefits attract employer NIC, some attract Class 1A, and some are exempt. The structure of your reward package changes the NIC outcome, so review it rather than letting it drift.

3. Apprentices and young workers. Employers pay no NIC on apprentices under 25 earning up to the apprentice upper secondary threshold, and reduced rates apply for employees under 21. If you are hiring at entry level anyway, the NIC treatment is worth knowing.

4. Get worker status right. Engaging someone as self-employed when they are really an employee does not save NIC; it creates an IR35 or employment-status liability with penalties. Classify correctly from the start.

5. Budget the true cost of each hire. Every offer letter should reflect the loaded cost: salary plus 15% employer NIC above the threshold, plus pension auto-enrolment. Hiring decisions made on salary alone understate the cost by thousands.

What to watch for in 2026-27

Keep an eye on the Autumn Budget for any further NIC changes, and remember that thresholds frozen in cash terms drag more pay into NIC as wages rise. Re-run your employment cost budget each spring, confirm your Employment Allowance claim is active in the payroll software, and review salary sacrifice arrangements annually to make sure they still deliver.

Payroll is one of those functions where small errors compound into large liabilities. Finex Outsourcing runs compliant UK payroll for growing businesses, handling NIC calculations, Employment Allowance claims and auto-enrolment as a matter of routine. If payroll has become a monthly firefight rather than a background process, it may be time to talk to the Finex Outsourcing team about payroll outsourcing.

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