2026-05-16 ยท MTD News
HMRC updates iXBRL technical specs for Corporation Tax software developers
HMRC has published updated technical specifications covering how to create iXBRL accounts and computations for Corporation Tax. The guidance is aimed squarely at Corporation Tax software developers rather than business owners or their accountants.
If you are a sole trader, landlord, or small business owner, this announcement does not require any action on your part. It is a behind-the-scenes update that affects the people who build the software you may already use to file your tax returns.
If you use accountancy or tax software to file Corporation Tax returns, your software provider will handle any changes needed to stay compliant with these specifications.
Source: gov.uk announcement.