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Self-Employed NIC — Class 4 (UK)

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Compute Class 4 National Insurance for the self-employed: 6% between the LPL and UPL, 2% above.

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Tout savoir sur Self-Employed NIC — Class 4 (UK)

Calculates Class 4 NIC for 2025/26 on self-employment profits: 6% between the Lower Profits Limit (£12,570) and Upper Profits Limit (£50,270), and 2% above. Class 2 NIC was abolished from 6 April 2024.

💡 Bonnes pratiques

Class 4 NIC is paid through Self Assessment alongside Income Tax.
Profits below the LPL still receive NI credits in some cases.