Deadline for paying Class 1A NIC

Employers must pay Class 1A NICs on 2024–25 benefits by 19 July (22 July if paying electronically). Avoid penalties by meeting deadlines and using correct references.

Employers are reminded of the upcoming Class 1A National Insurance contributions (NICs) deadline, which applies to most benefits in kind provided to employees during the 2024–25 tax year. These contributions must be paid by 19 July 2025 (or 22 July 2025 if paying electronically) to avoid penalties.

Class 1A NICs are payable by employers on the value of most taxable benefits provided to employees and directors, such as company cars and private medical insurance. They are also due on the portion of termination payments exceeding £30,000, where Class 1 NICs haven’t already been applied.

To ensure payment is correctly allocated, employers must use their Accounts Office reference number as the payment reference and indicate clearly which tax year and month the payment relates to. Note that Class 1A NICs paid in July will always relate to the previous tax year.

There are three key dates to keep in mind for 2024–25 Class 1A NICs:

• 6 July 2025 – Submission deadline for forms P11D and P11D(b) (‘Return of Class 1A National Insurance contributions due’)
• 19 July 2025 – Deadline for postal cheque payments to be received by HMRC
• 22 July 2025 – Deadline for electronic payments to clear into HMRC’s bank account

These contributions are typically due on benefits provided to:

• Company directors and those in controlling positions
• Employees
• Family members or household members of the above