NMWM14050 | After Notice of Underpayment issued: arrears and penalty paid in full within 14 days of service of Notice of Underpayment

Relevant legislation

The legislation that applies to this page is as follows:

• Employment Rights Act 2025, section 108

General

Notices of Underpayment inform the employer that all the arrears payable to all the workers named on the notice and the penalty must be paid within 28 calendar days of the day on which the notice was given (counting the day it was given as day 1).

However, employers who pay all the arrears to all the workers on the notice and also pay 50% of the penalty to HM Revenue & Customs within 14 calendar days of the day on which the notice was given, are entitled to a ‘reduction’ of 50% of the original penalty shown on the notice.

Reduction of the penalty for prompt payment

The notice will inform the employer that they can reduce the amount of the penalty by 50% if they pay:

• all the arrears to all the workers named on the notice within 14 calendar days of the day on which the notice was given (counting the day it was given as day 1), and

• half the penalty to HM Revenue & Customs within the same 14 days.

If the employer complies with both of these conditions the NMW Officer should amend the charge on SAFE to account for the reduced penalty (NMWM14060).

When either of these conditions is not met in full, the employer remains liable to pay the full arrears to workers within 28 days of the day on which the notice was given and is automatically required to pay the full amount of the penalty.