Getting started
Your first week on the Hydra desk
How to create a practice workspace, seed clients, connect HMRC, and complete a guided filing.
HydraTax is built for accountants who juggle many entities. Start in the practice dashboard, add a client, and choose a filing rail — VAT, CT600, Self Assessment, or payroll.
Keep books in integer pence so every return draws from the same digital record. When you are ready, use prepare → review → submit. Fraud-prevention metadata is collected at the final step and blocked locally if incomplete.
Without HMRC Developer Hub credentials you can still prepare and review locally. For live submits, store test and live credentials in separate environments — Hydra refuses mixed keys.