MTD VAT
Correcting a VAT return after submit
When you can amend, what Hydra stores, and how to keep the audit trail clean.
If HMRC accepted an incorrect return, follow HMRC’s amendment rules for the period. Prepare a corrected draft in Hydra and submit only when the gateway allows an amendment.
Do not delete audit events — Hydra’s log is append-only so partners can see every attempt and response code.