2026-03-25
The Cartridge Model - How DoneTax+ Organises Making Tax Digital for Income Tax Submissions
Every client in DoneTax+ has one Cartridge per tax quarter per income type. A Cartridge moves through six states: Incomplete, Ready, Under Review, Changes Requested, Submitted and Finalised.
Why this matters
Traditional accountancy software tracks documents. DoneTax+ tracks workflow. You always know exactly where every client stands - not just whether a file has been uploaded, but whether it is ready to submit, under your review, or waiting on the client.
The workflow in practice
When a client's quarter opens, their Cartridge starts as Incomplete. Once their transactions are in and categorised, it moves to Ready. You review it, request changes if needed, and when satisfied, submit directly to HMRC. The Cartridge becomes Submitted. After the year's final declaration is filed, it becomes Finalised.
One dashboard, every client
The DoneTax+ dashboard surfaces only what needs your attention. Clients who are ready to submit appear at the top. Clients who are overdue are flagged. Clients who are already submitted are out of the way.
No chasing spreadsheets. No missed deadlines.