How does National Insurance work in the Isle of Man?

## How Does National Insurance Work in the Isle of Man?

### Overview

National Insurance contributions (NICs) in the Isle of Man serve the same fundamental purpose as in the UK — funding social insurance benefits including the state pension, maternity allowance, sick pay, and unemployment benefit. However, the Isle of Man NIC system is administered independently by the Isle of Man Department of Health and Social Care (DHSC) and the rates and thresholds are set by the Isle of Man Parliament (Tynwald) separately from Westminster.

This means IoM NIC rates may differ from UK rates. In 2024 the UK reduced its employee NIC rate from 12% to 8%, while the Isle of Man maintained its rate at 11%. This is an example of the systems diverging over time.

### 2025/26 Rates and Thresholds

Class 1 NICs (employed):

| Band | Weekly earnings | Employee rate | Employer rate | |------|----------------|---------------|---------------| | Below lower earnings limit | Under £145 | 0% | 0% | | Between lower and upper limits | £145 to £833 | 11% | 13.6% | | Above upper earnings limit | Above £833 | 1% | 13.6% (no cap) |

Class 2 NICs (self-employed): Flat-rate weekly contribution for self-employed individuals with profits above the small profits threshold. Provides entitlement to contribution-based benefits including the state pension.

Class 4 NICs (self-employed): - 8% on annual profits between the lower profits limit and upper profits limit - 1% on annual profits above the upper profits limit

Class 3 NICs (voluntary): Voluntary contributions for individuals who wish to fill gaps in their NIC record, for example after periods of self-employment below the Class 2 threshold or periods of residence outside the Isle of Man.

### How ITIP and NIC Work Together for Employees

For employed workers, income tax and NIC are both deducted through the Isle of Man ITIP (Income Tax Instalment Payments) system — the Manx equivalent of UK PAYE. Employers must:

• Obtain an ITIP code for each employee from the Assessor of Income Tax
• Deduct income tax at the ITIP rate from gross pay
• Deduct employee NICs at the Class 1 rate
• Pay both to the Isle of Man Treasury by the 19th of the following month
• Also pay employer NICs (13.6%) alongside the employee deductions

The employer is responsible for the correct operation of ITIP. If an employer fails to deduct the right amount of ITIP, they can be held personally liable for the shortfall.

### Self-Employed NICs via Self-Assessment

Self-employed individuals declare their profits via the annual income tax return (Form IT1, due 6 October). Class 4 NICs are calculated as part of this return and paid alongside any income tax balance due.

Class 2 NICs are typically a small flat-rate annual amount, assessed and collected through the self-assessment process.

### NIC and the State Pension in the Isle of Man

NIC contributions paid in the Isle of Man build up entitlement to the Isle of Man State Retirement Pension. The qualifying years and minimum contribution record required are set by Manx legislation, broadly similar to UK rules.

Important: Isle of Man NIC contributions and UK NIC contributions are not automatically combined for IoM pension purposes. If you have worked in both the UK and the Isle of Man, you may have separate NIC records in both jurisdictions. There are bilateral agreements that may allow credits to be combined — take advice from the DHSC if you have a mixed contribution history.

### Employer NICs as a Business Cost

Employer NICs are a significant additional employment cost on top of gross salary. For a full-time employee earning £35,000 per year (approximately £673 per week):

• Employer NICs: (£673 - £145) × 13.6% = £71.81 per week = approximately £3,734 per year
• Total employment cost: £35,000 + £3,734 = £38,734

This should be factored into hiring decisions. Isle of Man substance requirements may mean that companies need to hire local staff to comply — understanding the true employment cost including employer NICs is essential for business planning.

### Comparison to UK NIC

| | Isle of Man (2025/26) | UK (2025/26) | |--|--|--| | Employee main rate | 11% | 8% | | Employee upper rate | 1% | 2% | | Employer rate | 13.6% | 13.8% | | Self-employed Class 4 | 8% | 6% |

The Isle of Man employee rate (11%) is meaningfully higher than the current UK rate (8%), following the UK's April 2024 NIC cut. This partially offsets the income tax saving for IoM residents compared to UK residents at equivalent income levels.