01
HMRC, directly
Connect through your Agent Services Account and submit quarterly updates and the final declaration without leaving the product.
- Agent authorisation
- Quarterly submissions
- Final declaration
MTD for Income Tax · live from 6 April 2026
Making Tax Digital, without the deadline scramble.
One controlled workspace for HMRC authorisation, client records, quarterly obligations and a complete audit trail, so every submission is prepared, reviewed and filed on time.
Agency control room
Q2 readiness
Next submission
07 NovQ2 quarterly update · 26/27
Clients
128
Filed
74%
Risk
9
Submission flow
Authorised100%
Records82%
Review46%
Who’s in scope, and when
Sole traders and landlords registered for Self Assessment.
- Phase 1In effect6 April 2026Qualifying income over £50,000
- Phase 26 April 2027Qualifying income over £30,000
- Phase 36 April 2028Qualifying income over £20,000
Platform · Capabilities
Four things an agency needs, done carefully.
Authorising with HMRC, keeping a client book tidy, never missing a quarter, and working as though a regulator might ask tomorrow.
02
Every client, one view
Organise your book with role-based access for the team. Keep each client’s records and documents together, and remind them by email when you need something.
- Role-based access
- Email reminders
- Document uploads
03
Deadlines that breathe
Quarterly and annual deadlines surfaced across the client base with automated email reminders and live submission status.
- Automated reminders
- Submission status
- Email notifications
04
Serious about trust
GDPR compliance, encrypted document storage, and audit trails built in from the start — not bolted on for enterprise.
- GDPR compliant
- Encrypted storage
- Audit trails
How it works
From authorisation to final declaration, in one place.
- 01
Authorise
Link your Agent Services Account so AATAX can act for your clients with HMRC.
- 02
Collect
Clients reply to your reminders with receipts and statements, and you add them to their records, filed against the right period.
- 03
Review
Check figures, resolve flags and sign off, with every change kept in the audit trail.
- 04
Submit
Send quarterly updates and the final declaration to HMRC, and see the result straight away.
Pricing
Simple per-client pricing.
Pay a flat fee for each client you manage. There are no setup fees and no tiers to compare.
Agents
£5
per client, per year
For accounting practices managing Making Tax Digital for up to 500 clients.
- Quarterly updates and final declarations for every client
- Client records and documents in one place
- Deadline tracking and email reminders
Over 500 clients
Contact us
For larger practices. We will agree a price based on the size of your book.
- Everything in the Agents plan
- Pricing agreed for your practice
Prices are per client, per year, and exclude VAT.
Common questions
Short answers to the questions agencies ask first.
Still something unresolved?
The help centre has longer treatments of each topic, or talk to us directly.
What is Making Tax Digital and when does it start?
Making Tax Digital for Income Tax is being phased in for sole traders and landlords registered for Self Assessment. It becomes mandatory from 6 April 2026 for qualifying income over £50,000, 6 April 2027 for income over £30,000, and 6 April 2028 for income over £20,000. It requires digital record-keeping and quarterly submissions to HMRC.
How does AATAX connect to HMRC?
AATAX integrates with HMRC APIs through your Agent Services Account. That lets you submit quarterly updates and the final declaration on behalf of your clients, securely and compliantly, with every call traceable in an audit log.
Can my clients use AATAX directly?
Not yet. For now, your clients reply to your email reminders with their receipts and statements, and you add them to their records. A client portal is on our roadmap.
How much does AATAX cost for agents?
Agents pay £5 per client, per year, excluding VAT, for up to 500 clients. There are no setup fees. If you manage more than 500 clients, contact us and we will agree a price for your practice.
How do I get started?
Book a demo and we will walk you through AATAX with your own client book, or create an agency account and connect your Agent Services Account. Already set up? Sign in with your agency credentials.
Get every client ready for the next quarter.
See AATAX with your own client book in a 30-minute walkthrough.