2024 National Insurance Changes: Impact on Employers

Significant changes to National Insurance contributions came into effect in 2024, substantially impacting employer costs across the UK. As an employer, understanding these changes is crucial for accurate payroll management and financial planning.

Immediate Impact

These changes are already in effect and will impact your 2024-25 payroll costs and planning.

Key Changes for 2024

1. Employer National Insurance Rate Increase

The most significant change is the increase in employer National Insurance contributions from 13.8% to 15% - an increase of 1.2 percentage points.

Previous Rate

13.8%

New Rate (2024)

15%

2. Lowered Employment Allowance Threshold

The threshold at which businesses become eligible for the Employment Allowance has been reduced from £100,000 to £45,000 of annual employer National Insurance liability.

3. Maintained Employment Allowance Amount

Despite other changes, the Employment Allowance remains at £5,000 per year, which can significantly offset the increased employer costs for eligible businesses.

Financial Impact Examples

Example: Employee earning £35,000 per year
Previous employer NI cost:
(£35,000 - £12,570) × 13.8% = £3,095
New employer NI cost:
(£35,000 - £12,570) × 15% = £3,365
Additional annual cost: £270 per employee

What This Means for Your Business

1. Increased Employment Costs

For most employers, this represents a significant increase in employment costs. A business with 10 employees earning £30,000 each will see their National Insurance bill increase by approximately £2,100 per year.

2. Budget and Cash Flow Impact

You'll need to factor these increased costs into your budget planning and cash flow forecasting. The impact will be felt monthly through your payroll runs.

3. Recruitment and Hiring Decisions

The true cost of employing someone has increased, which may influence your recruitment strategies and hiring decisions going forward.

Planning Strategies

1. Review Your Employment Allowance Eligibility

With the lowered threshold, fewer businesses will qualify for the Employment Allowance. Check if you're still eligible and factor this into your calculations.

2. Consider Alternative Employment Structures

Some businesses may benefit from reviewing their employment structures, though any changes should be carefully considered from legal, tax, and commercial perspectives.

3. Update Financial Projections

Ensure your 2024-25 financial projections account for these increased costs. This will help with pricing decisions and business planning.

4. Review Payroll Processes

Ensure your payroll systems are correctly applying the new rates and that you're maintaining accurate records for HMRC reporting.

Caroline's Practical Advice

"Update your payroll software immediately to ensure the correct rates are being applied. Review your monthly cash flow to account for the increased costs, and consider whether you need to adjust your pricing or employment strategies in response."

Employment Allowance - Key Points

  • Annual allowance remains at £5,000
  • Now only available to businesses with employer NI liability under £45,000
  • Cannot be claimed by companies where the sole employee is also a director
  • Must be claimed each tax year - it's not automatic

Additional Considerations

Impact on Different Business Sizes

  • Small businesses: May lose Employment Allowance eligibility
  • Medium businesses: Significant cost increases without allowance relief
  • Large businesses: Substantial absolute cost increases

Timing Considerations

These changes apply to the current tax year, so the impact on your business finances is immediate. Factor this into quarterly reviews and year-end planning.

How We Can Support Your Business

Our payroll services can help you navigate these changes:

  • Payroll software updates and compliance checks
  • Employment Allowance eligibility reviews
  • Cost impact analysis for your business
  • Updated financial projections and budget planning
  • Strategic advice on employment structure optimization

Published on December 02, 2025