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Bart
London, United Kingdom
What it is
Bart is an AI-powered tax assistant for UK sole traders using Making Tax Digital. Link a Government Gateway account and bank account so Bart can import transactions automatically. It suggests one of four categories for each transaction, drawing on business context and HMRC guidance; users can approve or change each suggestion. A category breakdown supports review before quarterly updates are submitted directly to HMRC. Current quarterly filing covers self-employment income, not UK or foreign property income, and Final Declaration support is listed as coming soon. Bart is available on the web, iPhone and Android. Its free plan covers the first five transactions, with billing beginning when the sixth is categorised. The Sole trader plan costs £9.99 per month (£119.88 a year) and includes unlimited transactions, AI categorisation, quarterly filing, chat, automatic bank import and deadline reminders. There is no free trial. Bart's security policy describes TLS in transit, AES-256 at rest and extra AES-256-GCM encryption for sensitive fields.
For and against
For
- Imports bank transactions automatically after account linking
- AI suggests categories based on business context and HMRC guidance
- Submit quarterly updates directly to HMRC
- Free plan covers the first five transactions
- Available on web, iPhone and Android
Against
- Does not support UK or foreign property income
- Final Declaration support is coming soon
- No free trial
- Billing begins when the sixth transaction is categorised
The verdict
Bart combines transaction categorisation, deadline reminders and quarterly HMRC filing for self-employment income. Sole traders with property income or a need for Final Declaration support should note the stated limits.
Who it suits
Bart suits UK sole traders using Making Tax Digital who want to organise transactions and submit quarterly self-employment updates to HMRC. It is available across web and mobile platforms.
Plans and prices
Sole trader
First 5 transactions free · Billing starts when categorising the 6th transaction · Unlimited transactions included
Read 7 Oct 2026 · hellobart.com
On the record
- Account connections
- Users link their Government Gateway and bank account, after which Bart imports transactions automatically.hellobart.com · read 7 Oct 2026
- AI categorisation
- Bart suggests one of four categories using the user's business context and HMRC guidance, and the user can approve or change the suggestion.hellobart.com · read 7 Oct 2026
- Coming soon
- Final Declaration support is listed as coming soon.hellobart.com · read 7 Oct 2026
- Company
- Hello Bart Ltd is registered in England and Wales, and the homepage gives its address as 64a Cathnor Road, London W12 9JA.hellobart.com · read 7 Oct 2026
- Data hosting
- The security policy says Supabase hosts data in the EU, encrypts it at rest and in transit, and maintains SOC 2 Type II compliance.hellobart.com · read 7 Oct 2026
- Included features
- The paid plan includes AI categorisation, quarterly HMRC filing, chat with Bart, automatic bank import, and deadline reminders.hellobart.com · read 7 Oct 2026
- Mobile apps
- Bart is listed for iPhone on the App Store and for Android on Google Play.apps.apple.com · read 7 Oct 2026
- Open Banking
- The security policy identifies Finexer as Bart's Open Banking provider and says it is authorised and regulated by the FCA.hellobart.com · read 7 Oct 2026
- Product
- Bart is an AI-powered tax assistant that sorts transactions, tracks deadlines, and files to HMRC.hellobart.com · read 7 Oct 2026
- Quarterly filing
- Users can review a category breakdown and submit quarterly updates directly to HMRC.hellobart.com · read 7 Oct 2026
- Security
- The security policy says data in transit uses TLS, server data is encrypted at rest with AES-256, and sensitive fields receive additional AES-256-GCM application-level encryption.hellobart.com · read 7 Oct 2026
- Support
- The homepage says users can chat with Bart anytime; the Google Play listing provides support at [email protected].hellobart.com · read 7 Oct 2026
- Supported income
- Bart currently supports quarterly updates for self-employment income; UK and foreign property income are not currently supported.hellobart.com · read 7 Oct 2026
- Target users
- Bart is built for UK sole traders using Making Tax Digital.hellobart.com · read 7 Oct 2026
