Autumn Budget: Employer NIC Threshold Frozen Until 2031
One of the key measures confirmed in the Autumn Budget is the long-term freeze to the Employer National Insurance Contributions (NICs) threshold. The threshold at which employers begin paying secondary Class 1 NICs will remain fixed at £9,100 until 2031.
Although no headline NIC rates have increased, this freeze will result in a steady and substantial rise in employer payroll costs over the remainder of the decade.
What Has Been Announced?
The government has confirmed:
- The Employer NIC threshold will stay at £9,100
- The freeze will run until 2031
- Employers will pay NICs sooner as wages rise, increasing overall payroll costs
This measure forms part of the wider multi-year freeze across several tax thresholds, increasing revenue through “fiscal drag” rather than rate increases.
Why This Matters to Employers
Even though the NIC rate has not changed, the threshold freeze means:
- As employee wages rise with inflation or progression, more of that pay becomes subject to employer NICs
- More staff will cross the threshold over time
- Employers will pay NICs on a larger portion of their payroll
- Annual payroll costs will increase in real terms each year
This effectively acts as a hidden tax rise on businesses.
The Real-Terms Impact on Payroll Costs
With wage growth expected to continue over the coming years, freezing the threshold until 2031 means:
- Businesses will face higher NIC bills every year
- Employees earning below the threshold today may exceed it soon
- Employers may need to adjust payroll budgets, workforce planning and price structures
For labour-intensive industries — retail, hospitality, care, manufacturing and construction — the cumulative impact could be significant.
Who Will Feel This Most?
The freeze will hit:
Small and medium-sized businesses
Many SMEs operate with tight margins; annual payroll increases will have a noticeable impact.
Employers with large workforces
Where staffing is the biggest cost, even small NIC increases multiply quickly.
Sectors reliant on lower-income workers
As pay rises push more workers above £9,100, employer NIC bills will rise sharply.
Employers planning future pay reviews
Annual increases will have tax implications beyond wage costs alone.
Planning Tips for Employers
1. Review workforce budgeting for the next 5+ years
NIC costs will rise automatically as wages grow, even without hiring additional staff.
2. Consider salary sacrifice arrangements
Schemes for pensions, EVs or childcare may reduce employer NIC liabilities where appropriate.
3. Make full use of the Employment Allowance
Eligible employers can offset up to £10,500 of employer NICs each year, depending on qualification.
4. Reforecast payroll and profitability
Businesses should model payroll costs through to 2031 to understand the long-term impact.
5. Evaluate automation and efficiency planning
Rising labour taxes may influence decisions around processes, staffing levels, and investment.
6. Review staff benefits and retention strategy
Pay rises needed to keep pace with inflation will carry higher NIC costs — factor this in early.
Summary
Freezing the Employer NIC threshold at £9,100 until 2031 represents a major long-term cost pressure for businesses. As wages rise and more income becomes subject to NICs, employers will face steadily increasing payroll liabilities.
Although this measure has attracted less headline attention than other Budget changes, its practical impact on business cashflow and staffing costs is likely to be substantial over the rest of the decade.
