OT66010 - Transferable tax history - TTH allocation on a loss carry back - Introduction

The guidance below sets out how a loss of a purchaser can be set against TTH. It covers the rules for allocating activated TTH amounts to accounting periods in accordance with Part 6 of FA19\Sch15. The steps set out in that part are a mechanical way of working out what profits a loss can be set against and those steps are detailed in the following pages.

There are a number of key principles to bear in mind when it comes to allocating activated TTH:

  1. Allocation is only done for an accounting period where the purchaser makes a decommissioning loss (see OT63030) that it is carrying back in accordance with CTA10\S39, S40 or S42.
  2. Amounts allocated in a previous accounting period are not treated as still being allocated in subsequent accounting periods where an allocation is made.
  3. Amounts of activated TTH that have been allocated and used in accordance with Part 4 of the Schedule in an accounting period do not get reallocated in the next loss-making accounting period.
  4. Amounts of activated TTH that have been allocated but not used in accordance with Part 4 of the Schedule in an accounting period do get reallocated in the next loss-making accounting period.

The process for allocating amounts of activated TTH is different depending on whether it is the first loss-making accounting period, or a subsequent one.