AI is an assistant. Suggestions and extraction can reduce manual work, but deterministic code and accountant decisions control ledger figures and filing content.
A download is not a filing. PDF and JSON exports support review, archive and permitted manual entry. They do not prove submission or acceptance.
HMRC requires compliant electronic content. A Company Tax Return requires CT600 data and the required iXBRL accounts and computations. A normal PDF cannot replace that package.
Government status comes from government evidence. Practice Ops records accepted, rejected or pending only from an explicit provider response or independently retained authority receipt.