
untied
untied is a mobile-first, HMRC-recognized tax return platform for UK self-employed individuals, landlords, and sole traders. The software securely connects bank accounts and credit cards, uses built-in AI assistance to guide users through filing, and is designed specifically for Making Tax Digital compliance. It also includes invoicing tools and automatic mileage tracking via opt-in location data.
- Financial Technology
- Software Only
- Artificial Intelligence
- AI Agents
Funding
Funding not disclosed

Founders
Founder details are not available yet.
Product
Problem
Self-employed individuals, landlords, and sole traders in the UK face complex, time-consuming tax return preparation, often requiring desktop software or professional help. The transition to HMRC's Making Tax Digital (MTD) rules adds further compliance burdens, and many users struggle to keep financial records organized and submit accurate returns on time.
Solution
untied provides a mobile-first, HMRC-recognized tax return platform that lets users complete and file their self-assessment entirely from a phone or browser. The software securely connects bank accounts, credit cards, and tax accounts to aggregate financial data in one place, while built-in AI assistance helps guide users through the process. It can automatically register users with HMRC as self-employed, and includes invoicing tools to track income and outstanding payments. The platform is designed specifically for MTD compliance, with user-friendly workflows that make record-keeping and filing straightforward.
Target Audience
Primary users are UK self-employed individuals, gig platform workers, landlords, sole traders, and high earners who need to file annual tax returns and comply with Making Tax Digital requirements. The platform also serves accountants and financial institutions looking for integrated tax filing capabilities.
Features
- HMRC-recognized and supervised by the Chartered Institute of Taxation, with FCA registration as an account information services provider
- Built-in "untied" AI assistant that guides users through tax tasks
- Secure connections to bank accounts, credit cards, and tax accounts for consolidated financial data
- Invoicing and payment request tools to track income and outstanding balances
- Automatic filing of self-employment registration documents to HMRC
- Mobile app and browser access with automatic mileage tracking via opt-in location data
- API availability for third-party integration and accountant use