UK Parliament has completed passage of the National Insurance Contributions (Secondary Class 1 Contributions) Bill, which implements the new national insurance contribution rates announced by the Chancellor of the Exchequer in the 2024 Autumn Budget. Following final consideration of amendments between the two Houses, the bill received Royal Assent on 3 April and became an Act of Parliament. The end-stage “ping pong” process focused on proposed changes relating to exemptions for healthcare providers, companies with small workforces, and a requirement for an impact review on certain sectors and industries. Peers considered Commons reasons for disagreeing with Lords amendments on 31 March, after voting on 24 March to approve alternative amendments covering all three areas.