MatrixTax
by MatrixTax
What MatrixTax is
MatrixTax is a web service for reporting income to HMRC and submitting Self Assessment tax returns. Its guided process covers personal details, income entry, submission, and application-status tracking. Supported categories include employment, self-employment, rental, foreign, savings, investment, dividend, and other untaxed income. The service is available in English, Romanian, Ukrainian, and Russian, and may act as your HMRC tax agent when instructed. A limited free trial is offered, but payment is required to submit a return, view tax-saving prompts or full reports, attach scanned documents, or download SA100 and SA302 reports. Simple Tax Return includes the SA100 core return, employment income, and email support. Full Tax Return adds supplementary pages SA101–SA110, rental, foreign and investment income, and priority support. MatrixTax advertises 24/7 support. Data is stored on UK-based AWS servers, payment cards use SSL encryption, and Stripe handles identity-document verification. Users must review submissions and meet HMRC deadlines.
Who it suits
It suits UK taxpayers needing guided online Self Assessment support, including people with self-employment, rental, foreign, savings, investment, or dividend income. Multilingual users can work in four listed languages.
What it does well
- Guided HMRC submission process
- Supports varied income types
- Four language options
- Limited free trial
- UK-based AWS data storage
What to know first
- No free plan
- Payment required for key trial actions
- Web-only platform
- Users remain responsible for deadlines
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Simple Tax Return | Pay when you submit; no recurring billing stated · SA100 core return · Employment income · Email support | £29.99, paid once |
| Full Tax Return | Pay when you submit; no recurring billing stated · Supplementary pages SA101–SA110 · Rental, foreign and investment income · Priority support | £59.99, paid once |
As matrixtax.co.uk lists them, read 12 Oct 2026. The maker's own page has the final word.
Verdict
MatrixTax provides guided, multilingual HMRC filing with support for many income sources. The trial has important restrictions, and users must approve information and ensure HMRC receives the return on time.
Facts from MatrixTax's own pages
- Company
- The privacy policy identifies the maker as MATRIXTAX LTD, company number 15492413, with a registered office in Romford, England. · matrixtax.co.uk, 12 Oct 2026
- Data protection
- The privacy policy identifies UK GDPR and applicable data protection laws as governing personal-data processing and says MatrixTax is the data controller. · matrixtax.co.uk, 12 Oct 2026
- Data retention
- The privacy policy says taxation records and returns are retained for six years. · matrixtax.co.uk, 12 Oct 2026
- Free plan
- No · matrixtax.co.uk, 22 Sept 2026
- Free trial limits
- The terms describe a limited trial; payment is required to submit a return, view tax-saving prompts or full tax reports, attach scanned documents, or download SA100/SA302 reports. · matrixtax.co.uk, 12 Oct 2026
- Guided process
- The service guides users through entering income and personal details, submitting information to HMRC, and tracking application status. · matrixtax.co.uk, 12 Oct 2026
- Headquarters
- Flat 1 Heybridge Court, 92 London Road, Romford, England, RM7 9QE · matrixtax.co.uk, 28 Sept 2026
- HMRC submission
- The terms say MatrixTax may act as the user's HMRC tax agent and submit returns on the user's behalf according to their instructions. · matrixtax.co.uk, 12 Oct 2026
- Identity verification
- The privacy policy says Stripe is used for identity document verification. · matrixtax.co.uk, 12 Oct 2026
- Investment income
- Yes · matrixtax.co.uk, 22 Sept 2026
- Languages
- The service is available in English, Romanian, Ukrainian, and Russian. · matrixtax.co.uk, 12 Oct 2026
- Mobile access
- web_only · matrixtax.co.uk, 22 Sept 2026
- Purpose
- MatrixTax helps users report income to HMRC and submit Self Assessment tax returns. · matrixtax.co.uk, 12 Oct 2026
- Rental income
- Yes · matrixtax.co.uk, 22 Sept 2026
- Security
- The privacy policy says data is stored on secure UK-based AWS servers and payment card details are encrypted using SSL technology. · matrixtax.co.uk, 12 Oct 2026
- Self-employment support
- Yes · matrixtax.co.uk, 22 Sept 2026
- Support
- The home page advertises 24/7 support, and the plans list email support for the Simple Tax Return and priority support for the Full Tax Return. · matrixtax.co.uk, 12 Oct 2026
- Supported income
- The site says its system guides users through self-employment, rental, foreign, savings, investment, dividend, and other untaxed income. · matrixtax.co.uk, 12 Oct 2026
- User responsibility
- The terms say users remain responsible for reviewing and approving information before submission and for ensuring HMRC receives the return by its deadline. · matrixtax.co.uk, 12 Oct 2026
Where MatrixTax stands on Freedom251
- Tax Software#109 of 149
- Personal Tax Software#105 of 123