Last updated: February 2026
By using Quartax ("the Service"), you agree to these terms. If you do not agree, do not use the Service.
Quartax helps UK landlords prepare and submit Making Tax Digital (MTD) quarterly property income updates to HMRC. You upload your bank statement, review AI-categorised transactions, and submit to HMRC. Quartax currently supports UK property income and self-employment income. We do not provide tax advice.
Summaries shown in Quartax are based on the information you provide. Your final tax liability may differ as HMRC may hold additional information about your income and expenses. Quartax does not support Final Declaration or income from pensions, savings, dividends, or partnerships. To find software that supports these, visit the HMRC software finder.
You are responsible for the accuracy of the data you submit. You must review and confirm all categories before submitting to HMRC. You must ensure you have the right to upload and process any bank data you provide. You are responsible for compliance with HMRC and tax obligations.
Quartax is offered on an annual subscription basis. You may cancel at any time. Refunds are not available for partial periods. If payment fails, we may suspend access until payment is updated.
You may delete your account at any time from Settings. We may suspend or terminate your account if you breach these terms or for operational reasons. We will give notice where reasonably possible.
Quartax is provided "as is". We do not guarantee uninterrupted or error-free service. Our liability is limited to the amount you paid for the Service in the 12 months before the claim. We are not liable for tax penalties, HMRC errors, or decisions you make based on the Service.
We may update these terms. We will notify you of material changes by email or via the Service. Continued use after changes means you accept the updated terms.
For questions about these terms: team@quartax.co.uk