National Insurance for Investment Zones

National Insurance – Thresholds

There is a new threshold introduced for Investment Zone employees (IZUST).

Threshold/Limit 2024-25	Weekly	2-Weekly	4-Weekly	Monthly	Annual
Investment Zone Upper Secondary threshold (IZUST)	£481	£962	£1,924	£2,083	£25,000

National Insurance – Rates

A new rate has been introduced for Investment Zone employees.

National Insurance - Employer	2024-25 (%)
Standard Rate	13.8
Reduced Under 21 up to UST	0
Apprentice Under Age 25 up to AUST	0
Freeport up to FUST	0
Investment Zone up to IZUST	0
Veteran up to VUST	0

National Insurance – Investment Zones

From April 6, 2024, NI categories are available for employees identified as primarily employed in an investment zone. These categories when given to employees qualify for employer’s NI relief.

NI Category	Description
N	Investment zone standard rate contributions
E	Investment zone reduced rate contributions
D	Investment zone deferred contributions where a deferment certificate is held
K	Investment zone employer only contributions

Use the four new NI categories that come into effect from April 6, 2024 for Investment Zones. The NI categories N, E, D, and K apply to employees identified as primarily employed in an Investment Zone area. This ensures that the employer NI relief is applied for your organization.

Steps to Enable

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Key Resources

Payroll Legislative Updates For Tax Year 2024/2025 [Document 2992380.1]