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National Insurance Changes for 2025/26: What UK Businesses Need to Know

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  • Post last modified:May 26, 2025

Starting from 6 April 2025, significant changes to National Insurance Contributions (NICs) will come into effect, impacting businesses across the UK. These adjustments, announced in the Autumn Budget 2024, aim to bolster public finances but will have varying effects on employers depending on their size and wage structures.LinkedIn


Key Changes to Employer National Insurance Contributions

1. Increase in Employer NIC Rate

The secondary Class 1 NIC rate, which employers pay on employees’ earnings above a certain threshold, will rise from 13.8% to 15%.

2. Reduction in Secondary Threshold

The earnings threshold at which employers begin paying secondary Class 1 NICs will decrease from £9,100 to £5,000 annually.

3. Enhancement of Employment Allowance

To mitigate the impact on smaller businesses, the Employment Allowance will increase from £5,000 to £10,500 per year. Additionally, the previous restriction disallowing employers with a secondary NIC liability exceeding £100,000 in the prior tax year from claiming the allowance will be removed.

4. Adjustments to Class 1A and 1B NIC Rates

Employers will now pay 15% on Class 1A and 1B NICs, which apply to benefits like company cars and termination payments.


Implications for Businesses

Increased Payroll Costs

The combination of a higher NIC rate and a lower threshold means employers will incur additional costs, particularly for employees earning above £5,000 annually. This change is expected to generate £25 billion annually for the Treasury.

Impact on Hiring and Wage Decisions

Businesses may reconsider hiring plans or wage increases due to the elevated cost of employment. The Office for Budget Responsibility estimates that 60% of these increased costs could be passed on to employees through lower wages or to consumers via higher prices.

Relief for Small Businesses

The enhanced Employment Allowance offers significant relief for smaller employers, potentially offsetting the increased NIC costs. Approximately one million businesses are expected to benefit from this change.


Strategic Considerations for Employers

  • Budgeting and Forecasting: Businesses should revise financial forecasts to account for increased NIC liabilities.

  • Payroll Management: Reviewing employee compensation structures may help mitigate the impact of higher NIC rates.

  • Utilising Employment Allowance: Eligible businesses should ensure they claim the increased Employment Allowance to reduce NIC burdens.

  • Consultation with Advisors: Engaging with financial advisors can provide tailored strategies to navigate these changes effectively.


In summary, while the upcoming NIC changes aim to strengthen public finances, they present challenges for businesses, particularly regarding increased employment costs. Proactive planning and strategic adjustments will be essential for businesses to adapt to the new fiscal landscape.