Founding Practice Programme — Limited Spots

Your clients.
Their tax.
Done.

The only MTD ITSA platform built exclusively for UK tax agents. Manage quarterly submissions for all your clients from one premium command centre.

〜 How it works
Q4 2025/26
127 Clients
89
32
Anderson Ltd
AB123456C
£12,450
submitted
Wilson Trading
CD789012D
£8,920
pending
Martinez & Co
EF345678E
£15,780
draft
HMRC MTD COMPLIANT
AES-256 ENCRYPTED
UK GDPR COMPLIANT
ICO REGISTERED
How it all connects

One ecosystem. Three products.

Landlord App
DoneTax
Practice code
DONE0001
Bank synced
2m ago
4 uncategorised
Q3
Sole Trader App
DoneSE
Practice code
DONE0047
Bank synced
Just now
Ready for agent
Today
Accountant Platform
DoneTax+
Anderson Ltd
Q3 · LANDLORD
£12,450
Submitted
Wilson Trading
Q3 · SOLE TRADER
£8,920
Ready
Martinez & Co
Q3 · LANDLORD
£15,780
Incomplete
Review & Submit to HMRC
Connected to HMRC
The Cartridge Model

Each quarter is a cartridge.

Your client downloads DoneTax or DoneSE and enters your practice code. From that moment, you are connected. They log income and expenses in their own app. You see everything in DoneTax+ and submit directly to HMRC when ready.

IncompleteReadyUnder ReviewSubmitted
Why DoneTax+

Built for agents.
Not adapted.

FULL AUDIT TRAIL

Every review, approval, and submission is logged. Know exactly what happened, when, and who acted. Nothing is ever lost.

ADD BY NINO

No endless onboarding. Just enter your client's National Insurance Number and you're connected.

DIRECT HMRC SUBMISSION

OAuth 2.0 authenticated. Bank-grade encryption. Instant confirmation. Never leave the platform.

The process

How it works.

01

Connect HMRC

Authenticate your HMRC Agent Services Account via secure OAuth 2.0. One-time setup — your credentials are stored securely and never shared.

02

Add client by NINO

Enter your client's National Insurance Number. Their profile is created instantly. No client login or portal required.

03

Load client data

Add your client's quarterly income and expenses across HMRC-compliant categories. Every transaction stored, categorised, and ready for review.

04

Review and submit

Review the completed cartridge, approve it, and file directly to HMRC via the Agent Services Account API. Instant confirmation. Full audit trail.

Bank-grade security · End-to-end encryption · HMRC fraud prevention compliant · ICO registered

Simple pricing

One platform. One price.

MONTHLY

£19.99/ mo
+ £1.99 per client seat
Unlimited clients
Direct HMRC submissions
Cartridge workflow
Full export history
Standard support

ANNUAL

Recommended
£16.66/ mo
+ £1.99 per client seat · Billed £199.99/yr
Unlimited clients
Direct HMRC submissions
Cartridge workflow
Full export history
Priority support
Got questions

Frequently asked.

Yes, without exception. DoneTax+ is built exclusively for UK tax agents and accountants managing MTD ITSA submissions on behalf of clients. Individual taxpayers cannot access this platform. If you are looking for personal tax management, DoneTax handles property income and DoneSE handles self-employment.
Your monthly or annual subscription covers the platform itself. Each active client seat costs an additional £1.99 per month. You only pay for clients you have added. Remove a client at any time and billing stops immediately. There is no minimum client count.
No. You connect your HMRC Agent Services Account once via secure OAuth 2.0. After that, adding clients is instant using their National Insurance Number. HMRC authorisation flows automatically through your agent credentials for every client you manage.
Yes. DoneTax+ handles both income types in a single dashboard. Landlord clients connect through DoneTax and sole traders through DoneSE. Both feed into your DoneTax+ command centre through the Cartridge Model.
Each quarter of data for each client is a cartridge. Your client logs their income and expenses in their own app throughout the quarter. When the quarter closes, you receive a completed cartridge in DoneTax+, review it, approve it, and submit directly to HMRC. No chasing. No manual data entry. No back and forth.
Never. Clients use DoneTax or DoneSE on their own devices. DoneTax+ is your platform only. Clients enter a practice code when they sign up and from that point you are connected. They never see your dashboard.
All four quarterly submission deadlines and the Final Declaration for every client in your practice. The dashboard flags upcoming deadlines across your full client base so nothing falls through the cracks.
Transactions can currently be entered manually or pulled directly from HMRC via open banking. CSV import and integrations with popular bookkeeping tools are on the roadmap. If you have a specific integration requirement, contact us.
No. Both the monthly and annual plans include unlimited client seats, subject to the per-seat fee. The platform is built to scale with your practice from day one.
All data is encrypted at rest and in transit using AES-256. Servers are UK-based. The platform is fully GDPR compliant and registered with the ICO. We never store or see your HMRC credentials. Your agent OAuth token is held in encrypted session storage only.

Ready to run your practice
at a different level?

Join forward-thinking accountants using DoneTax+ to manage MTD ITSA compliance for their clients with professional-grade precision.

The DoneLabs Family

DoneTax
FOR LANDLORDS

Personal MTD ITSA compliance. Simple. Clean. Stress-free.

DoneSE
FOR SOLE TRADERS

Self-employment tax made easy. Track income. File quarterly. Done.

DoneTax+
Current
FOR ACCOUNTANTS

The agent platform. Manage all your clients. Premium command centre.