Terms of service
Last updated June 2026.
1. Who we are
These terms govern your use of Taxley ("the Service"), operated by Taxley Limited, a company registered in England & Wales (no. [company number]), registered office [registered office address] ("we", "us"). By creating an account or using the Service you accept these terms.
2. What the Service is
Taxley is software that helps the director of a small UK company prepare a Corporation Tax return (CT600), FRS 105 / FRS 102 §1A accounts and computations as inline XBRL, and — on your instruction — transmit them to HMRC and, if selected, to Companies House.
3. No HMRC endorsement
HMRC recognition, where obtained, means our software has passed HMRC's technical tests. It does not mean HMRC endorses, approves, recommends or guarantees the Service. We do not use HMRC's name or logos to imply endorsement. The Service is currently a development prototype and is not yet HMRC-recognised; until recognition and live test-service validation are complete, submissions run in test/simulated mode and nothing is filed for real.
4. Not tax advice
We provide tools, not advice. The Service does not give accountancy or tax advice and we do not act as your tax agent or accountant. You are responsible for deciding whether the figures and treatments are correct for your company. We strongly recommend review by a qualified accountant. Certain calculations and the iXBRL tagging carry expert-review flags.
5. Your responsibilities
- You confirm you are authorised to file the return for the company.
- You are responsible for the accuracy and completeness of every figure you enter and of the return and accounts produced.
- The declaration (CT600 boxes 975/980/985) is made by you (the named person), not by us; you confirm the information is correct and complete to the best of your knowledge.
- You remain responsible for filing on time and for paying any tax due to HMRC. The Service does not pay your tax.
- You must keep your account credentials and any government gateway credentials secure and not share them.
6. Filing on your instruction
The Service only transmits a return when you choose to submit it. You authorise us to send the prepared CT600, accounts and computations to HMRC (and, if you select it, accounts to Companies House) on your behalf at the point you instruct submission. We are not responsible for HMRC's or Companies House's processing, acceptance or rejection of a submission, or for their availability.
7. Fees
Fees are shown before you pay and are charged (via Stripe) when you choose to file. In test/simulated mode no charge is taken. Fees are [refund policy — e.g. non-refundable once a live submission is accepted].
8. Acceptable use
You must not use the Service unlawfully, attempt to disrupt or gain unauthorised access to it, submit returns you are not authorised to file, or use it to facilitate fraud or evasion.
9. Liability
To the maximum extent permitted by law, we are not liable for HMRC penalties, interest, or losses arising from the figures you enter, your filing decisions, late filing, or matters outside our control. Nothing excludes liability that cannot be excluded by law (including for death or personal injury caused by negligence, or fraud). Our total liability is limited to [cap — e.g. fees paid in the prior 12 months].
10. Data protection
We handle your data as described in our Privacy policy.
11. Termination & your data
You may stop using the Service and delete your account and data at any time from the My data page, subject to records we must retain by law (see the Privacy policy).
12. Changes & governing law
We may update these terms; material changes will be notified. These terms are governed by the laws of England & Wales and subject to its courts.
13. Contact
support@taxley.co.uk — see the Contact page.