Last updated: 27 October 2026
LuciBook Ltd (“LuciBook”, “we”, “us”), a company registered in England and Wales (company number 15848436) with its registered office at Suite 7, Innovation House, Molly Millars Close, Wokingham, Berkshire, RG41 2RX, provides its websites, software and services to you subject to these Terms of Service, our Privacy Notice and any policies incorporated by reference (together, the “Terms”). The Terms govern your use of:
- lucibook.co.uk, core.lucibook.co.uk and any other website we operate (the “Site”);
- the LuciBook software, including any API we make available (the “Application”); and
- any other products or services provided or billed by LuciBook;
(together, the “Services”).
By accessing or using the Services you confirm that you have read, understood and agree to be bound by the Terms. If you are accepting on behalf of a firm or company, you confirm you have authority to bind it. If you do not agree, you must not use the Services.
1. Updates to these Terms
We may change these Terms from time to time. We will give you at least 30 days’ notice of material changes by email to the address on your account or by a notice in the Site or Application. Changes take effect on the date stated in the notice, and your continued use of the Services after that date means you accept them. If you do not agree, you may cancel your account before the changes take effect in line with section 19. The “last updated” date at the top shows the current version.
2. Definitions
- “Content” means everything available through the Services other than User Content, including software, text, designs, logos, features, graphics and their arrangement.
- “Subscriber” means a firm or person that holds a LuciBook subscription, and anyone that Subscriber gives staff or administrator access to.
- “Client” means a Subscriber’s own client who interacts with the Services, for example to view or sign a proposal, complete a form or raise a ticket.
- “User” means anyone who uses the Services, including Subscribers, Clients and visitors to the Site.
- “User Content” means information, data, documents and other material that a User provides to or stores in the Services, and data derived from a User’s use of the Services.
- “Registration Data” means the information you are asked to provide when creating or updating an account.
3. The Services are not for individuals under 18
The Services are designed for businesses, not children. You must be at least 18 to use them. If we learn that a User is under 18, we will close that User’s access.
4. Privacy and data processing
Our Privacy Notice explains how we collect, use and share personal data about Users, and you agree to it by using the Services. Where a Subscriber stores personal data about its Clients, staff or other third parties in the Services, the Subscriber is the controller of that data and we act as its processor under our Data Processing Agreement, which forms part of these Terms.
You agree that we may collect and use technical and usage data that does not identify you (“Aggregated Data”) to operate, support and improve the Services, including after your subscription ends.
5. Registration Data
If you create an account, you agree to provide accurate, current and complete Registration Data and to keep it up to date.
6. Security and your credentials
We use hosting and security services and practices that we believe provide a secure environment, as described in our Privacy Notice. No system is perfectly secure, and we cannot guarantee that information sent over the internet will be free from interception or loss.
You must keep your passwords, API keys and other credentials confidential and must not share them. You are responsible for all activity under your account, including activity by anyone you give access to, and for all charges it incurs. Tell us immediately at info@lucibook.co.uk if you suspect unauthorised use. We may revoke credentials that are shared, compromised or used in breach of these Terms.
7. Restrictions on use
You may use the Services only for lawful business purposes, in accordance with these Terms. You may not use the Services for personal, family or household purposes, and you may not resell, lease or otherwise make them available to third parties except as the Services expressly allow.
You must not:
- attempt to undermine the security or integrity of our systems or networks, or those of our hosting providers;
- use the Services in a way that impairs their functionality or other Users’ use of them;
- attempt to access data, accounts or systems you are not authorised to access;
- upload or transmit malware, or material that is unlawful, infringing, defamatory or offensive;
- copy, modify, adapt, decompile or reverse engineer any software used to deliver the Services except as the law permits;
- use scraping, robots or automated means to extract data from the Services other than through an API we provide; or
- send unsolicited messages through the Services.
8. Fees, charges and taxes
Subscription fees and other charges are described on the Site or in your order. Fees are stated in pounds sterling, exclusive of VAT, which is added where applicable. You are responsible for any other taxes due on the Services.
Fees are payable in advance by the payment method we accept. Subscriptions renew automatically at the end of each billing period unless cancelled under section 19. If a payment fails or your account has an overdue balance for 14 days or more after notice, we may suspend the Services and, where lawful, charge the payment method on file.
We may change fees on at least 30 days’ notice. Changes do not apply to the billing period in which they are announced; your continued use after the effective date means you accept the new fees. If you wish to dispute a charge, you must do so in writing within 60 days of the invoice date.
Fees are non-refundable except where these Terms or the law require otherwise. Overdue amounts may bear interest at 4% per year above the Bank of England base rate from the due date until paid.
Despite our care, pricing or descriptive errors may occur on the Site. We reserve the right to correct them.
9. Ownership of the Services, Content and trade marks
Other than User Content, the Services and all Content are owned by LuciBook or its licensors and are protected by UK and international intellectual property laws. Nothing in these Terms transfers any intellectual property rights to you.
We grant you a limited, revocable, non-exclusive, non-transferable licence to access and use the Services and Content for your firm’s internal business purposes during your subscription, subject to these Terms. You may not remove proprietary notices, create derivative works of the Content, or use it other than for its intended purpose. Any feedback or suggestions you give us may be used by us without restriction or obligation.
LuciBook and the LuciBook logo are our trade marks. Other names and logos mentioned in the Services belong to their owners, and their mention does not imply endorsement by or of LuciBook.
10. User Content
You are responsible for your User Content. You represent that you own or have the right to use and share it through the Services, that it complies with applicable law, and that where it contains personal data you have provided any notices and obtained any permissions required.
We do not monitor User Content, but we may remove or disable access to User Content that we reasonably believe breaches these Terms or the law, and will tell you where we lawfully can. You are responsible for keeping your own copies of User Content. If you authorise third parties (for example through an integration or API) to access your User Content, we may provide it to them and we are not responsible for their use of it.
11. Licence to User Content
User Content remains your property. You grant us a worldwide, non-exclusive, royalty-free licence to host, store, copy, transmit, display and process your User Content, and to sublicense those rights to our service providers, solely as needed to provide, support, secure and improve the Services, to comply with the law and to exercise our rights under these Terms. Where your User Content is intended for other Users (for example a proposal sent to a Client), you also grant us the right to make it available to them for that purpose. We will apply reasonable confidentiality and security measures and will de-identify or aggregate User Content before any use outside providing the Services to you.
12. Using the LuciBook API
If we make an API available, we grant you a limited, revocable, non-exclusive, non-sublicensable licence to use it in accordance with these Terms and any API documentation. You must not use the API to interfere with the Services, exceed published rate limits, replicate the core functionality of the Services, build a tool for migrating Content to a competing product, or misrepresent your identity. We may monitor API use, impose or change usage limits, charge for excess usage, and suspend API access without notice if we reasonably believe these Terms are being breached. If you are a Subscriber, consider carefully which third parties you authorise to access your User Content through the API; you can revoke their access at any time in your account settings.
13. Third-party services
The Services may integrate with or link to third-party services, such as payment, open-banking, e-signature and email providers (“Third-Party Services”). Your use of Third-Party Services is subject to their own terms and privacy policies, which you are responsible for reviewing. We do not endorse Third-Party Services and do not warrant that they, or the integration between them and the Services, will be available, error-free or secure. We may change Third-Party Service providers from time to time and will notify you where the change affects you.
14. Electronic signatures and communications
The Services allow proposals, engagement letters and other documents to be accepted electronically. You agree that an electronic acceptance or signature recorded through the Services is valid and binding to the same extent as a handwritten signature, and that we may rely on it. You also agree to receive notices, invoices and other communications from us electronically.
15. No professional advice
The Services are tools for running an accounting or bookkeeping practice. They do not provide accounting, tax, legal or regulatory advice, and outputs such as generated documents, billing schedules and calculations should be checked by a suitably qualified person before being relied on. Your professional obligations to your clients and regulators remain yours.
16. Warranty disclaimer
We warrant that the Services will perform materially in accordance with their documentation. Except for that warranty, and to the fullest extent permitted by law, the Services, Content and Third-Party Services are provided “as is” and “as available”, and we exclude all other warranties, conditions and terms, whether express or implied, including as to fitness for a particular purpose, satisfactory quality, accuracy, non-infringement and uninterrupted or error-free operation. We do not warrant that your use of the Services will ensure your compliance with any law or regulation.
17. Limitation of liability and indemnity
Nothing in these Terms excludes or limits liability for death or personal injury caused by negligence, for fraud or fraudulent misrepresentation, or for anything else that cannot be excluded or limited by law.
Subject to that, and to the fullest extent permitted by law:
- neither party is liable, whether in contract, tort (including negligence), breach of statutory duty or otherwise, for any indirect or consequential loss, or for loss of profits, revenue, business, goodwill or anticipated savings, or for loss or corruption of data (other than our obligations under section 4 and our Data Processing Agreement);
- we are not liable for any loss arising from Third-Party Services, User Content or your reliance on outputs of the Services; and
- each party’s total aggregate liability arising out of or in connection with these Terms in any 12-month period is limited to the fees paid by you to us in the 12 months before the event giving rise to the claim.
You will defend, indemnify and hold harmless LuciBook, its officers, employees and contractors against any claims, losses, liabilities and costs arising from your User Content, your Clients’ use of the Services through your account, or your breach of these Terms or applicable law. We may take control of the defence of any such claim at our own expense, and you will cooperate reasonably.
We will indemnify you against third-party claims that the Services, used in accordance with these Terms, infringe UK intellectual property rights, provided you notify us promptly, allow us to control the defence and settlement, and give us reasonable assistance.
18. Communications and notices
We may give you notices by email to the address in your Registration Data, by SMS where you have opted in, or by posting in the Site or Application. It is your responsibility to keep your contact details current and to check the Site and Application for notices. Notices to us must be sent by email to info@lucibook.co.uk or by post to our registered office.
19. Term, cancellation and termination
These Terms apply from the moment you first use the Services and continue until terminated.
By you. You may cancel your subscription at any time through your account or by emailing info@lucibook.co.uk. Cancellation takes effect at the end of the current billing period; fees for that period remain payable.
By us. We may suspend or terminate your access, in whole or part, immediately if you materially breach these Terms and do not remedy the breach within 30 days of notice (or immediately where the breach cannot be remedied or poses a security or legal risk), if you become insolvent, or if we are required to by law. We may also change, suspend or discontinue any feature of the Services on reasonable notice.
Inactive accounts. If your account is inactive for 6 months or more, we may deactivate it after giving you notice. If we do not hear from you within 30 days of that notice, we may delete the account and its User Content.
Effect of termination. On termination your right to use the Services ends and outstanding fees become due. You may export your User Content for 30 days after termination, after which we will delete it, except for archival backups and anything we must keep by law. Sections 4, 9, 11, 16, 17, 18, 20 and 21 survive termination.
20. Applicable law and jurisdiction
These Terms, and any dispute or claim arising out of or in connection with them or the Services (including non-contractual disputes), are governed by the law of England and Wales. The courts of England and Wales have exclusive jurisdiction, except that we may seek injunctive relief or enforce a judgment in any jurisdiction. If you use the Services from outside the UK, you are responsible for complying with local laws.
21. Miscellaneous
If any provision of these Terms is found to be unlawful or unenforceable, it will be severed and the rest will remain in force. We may assign our rights under these Terms to a group company or a successor to our business without your consent; you may not assign yours without our prior written consent. Neither party is liable for delay or failure caused by events outside its reasonable control. No failure to enforce a right is a waiver of it. These Terms, the Privacy Notice, the Data Processing Agreement and any order form are the entire agreement between you and LuciBook regarding the Services and replace all prior communications about them. Nothing in these Terms gives rights to anyone who is not a party to them.
22. Questions and comments
If you have questions about these Terms or the Services, contact us at:
LuciBook Ltd, Suite 7, Innovation House, Molly Millars Close, Wokingham, Berkshire, RG41 2RX
Email: info@lucibook.co.uk