HMRC One to Many letter – corporation tax losses discrepancies between CT600 and computations

HMRC are sending out a small number of One to Many letters (see template below) in September to companies whose reported losses on their CT600 differ from accompanying tax computations. A software issue in late 2022 led to a similar letter being sent out to a larger number of companies (see details of that letter: HMRC letter - Differences in the loss position of Company Tax Returns); but a number of remaining inconsistencies have been identified. Recipients of this latest letter are advised that HMRC will rely on the tax computations and that no action need be taken, but they should contact HMRC within 60 days, or their tax advisers, if necessary.

Differences in the loss position of Company Tax Returns letter