BIM81250 - Transitional rules: trades commencing before 2023-24 (continuing trades) - introduction

The guidance from BIM81250 onwards sets out the transitional rules for continuing trades (trades not commencing or ceasing in 2023-24).

The basis period for 2023-24 for a trade commencing before 2023-24 (and not ceasing in 2023-24) will start on the day after the end of the basis period for 2022-23 and will end on 5 April 2024.

The basis period will comprise up to three components:

  • the standard part
  • the transition part (where applicable)
  • days following a late accounting date (where applicable)

The diagram below illustrates this:

  Basis period for 2023-24  
Standard part Transition part Days following late accounting date