Commencement
The primary Class 1 NICs rate change (Section 1) comes into force on 6 April 2024 and, the consequential amendments for Class 1 (for directors and the annual maximum, paragraphs 1 and 2 of the Schedule) come into force upon Royal Assent with effect for the tax year 2023-24. The provisions relating to Class 2 and 4 NICs (Sections 2 and 3 and the consequential amendments in paragraphs 3 and 4 of the Schedule) come into force on 6 April 2024. The power to make further consequential amendments (paragraph 5 of the Schedule) and sections 4 and 5 (introducing the Schedule and giving the short title) come into force upon Royal Assent.