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Terms of Use

Last updated: 6 October 2025

These Terms of Use ("Terms") govern your use of the Seadays website and web application, including any publicly accessible pages, dashboards and hosted services (collectively, the "App"). By browsing the website, creating an account or otherwise using the App you agree to these Terms. If you do not agree, do not access or use the App. These Terms are written for individuals based in the United Kingdom and are subject to UK law. For visitors who do not register, Sections 3 to 11 still apply and references to "App" should be interpreted to include the portions of the website you access.

The App uses Google Firebase (including Authentication, Firestore and Firebase Storage) to authenticate user accounts, store structured data and keep uploaded documents. These services may store data outside the UK or EU; under UK and EU data protection law you must be informed if your data is transferred internationally and the safeguards in place. We rely on Google's Standard Contractual Clauses and related safeguards, and Google may process your files to provide threat–detection and content–safety services.

2. Purpose of the App

The App allows you to:

  • register an account using a Google account or email address;
  • record periods of time spent outside the UK, including the date you left, the date you returned and optional notes;
  • securely upload and organise supporting documents (for example discharge book pages, crew agreements and travel tickets) to help evidence your voyages;
  • view a calculated estimate of whether your recorded days may form an "eligible period" for the Seafarers' Earnings Deduction (see HMRC guidance: you must have worked on a ship, have a period of at least 365 days outside the UK, and be resident in the UK or an EEA state as set out on gov.uk);
  • store your current status (on board / abroad / in the UK) and update it when you return; and
  • receive notifications or emails about your recorded periods (for example, if your days outside the UK are about to break a continuous period).

The App is an information and record–keeping tool only. HMRC states that to claim SED you must meet strict conditions (including maintaining records such as the HS205 worksheet, travel tickets and logs, as described on gov.uk), and must file a Self Assessment tax return. The App does not file tax claims, provide professional advice or guarantee your eligibility; you should consult a qualified accountant or tax adviser before making any decisions based on the App's output.

3. Acceptable use and restrictions

You agree that you will:

  • provide accurate and up‑to‑date information when creating your account and recording travel periods;
  • maintain the confidentiality of your login credentials and restrict access to your account;
  • use the App only for personal, non‑commercial purposes related to tracking seafaring days; and
  • comply with all applicable laws and regulations, including tax and data protection laws.

You must not:

  • use automated scripts, bots or scraping tools on the App;
  • submit information on behalf of someone else without their consent;
  • attempt to reverse–engineer, decompile or otherwise misuse the App's code;
  • infringe any intellectual property rights of Seadays or third parties; or
  • use the App in a way that interferes with, damages or disrupts its operation.

4. User content and uploads

You may upload documents, images and other materials to store alongside your voyage records. You confirm that you have the right to upload each file and that doing so will not breach confidentiality obligations, data protection law or intellectual property rights.

You agree that you will not upload content that:

  • contains malware, viruses or other harmful code;
  • is unlawful, defamatory, discriminatory, hateful, pornographic or otherwise inappropriate;
  • includes personal data about another person unless you have their explicit permission or another lawful basis under UK or EU data protection law;
  • contains payment card details or other highly sensitive information that is not necessary for the App's purpose; or
  • you are prohibited from sharing, including commercially confidential material or official secrets.

We validate uploads to check file type, size and metadata to ensure compatibility and security. Google Firebase performs threat detection and content safety services on uploaded files as part of its standard infrastructure. We may review or remove uploads that we believe breach these Terms or applicable law and, if required, report illegal material to the relevant authorities. Deleted documents will usually be purged from our systems within 30 days, subject to lawful retention requirements described in our Privacy Policy.

5. Intellectual property

Unless otherwise indicated, Seadays owns the copyright and other intellectual–property rights in the App's content and software. All rights are reserved. You may view the content for your personal use but you may not reproduce, distribute or modify it without written permission. The algorithm used to estimate eligibility may be open–sourced in future; however, until then it is proprietary.

6. Disclaimer and limitation of liability

The App is provided for information and record‑keeping purposes only. HMRC rules for the Seafarers' Earnings Deduction change periodically and depend on your individual circumstances. The calculations and summaries presented by the App are indicative and are not a substitute for professional advice. You must validate all outputs against HMRC guidance and seek advice from a qualified tax adviser before taking action.

You remain solely responsible for the accuracy and completeness of the information and documents you enter. We do not verify, endorse or warrant the authenticity of any user‑generated content, and we are not responsible for any decisions you make or failures to act on the basis of the App, including any lost claims, assessments, penalties, interest, loss of relief or other consequential loss.

To the fullest extent permitted by law, Seadays excludes all warranties, representations and implied terms regarding the App, and will not be liable for any loss of profit, business, goodwill or any indirect or consequential loss arising out of or in connection with your use of the App. Nothing in these Terms limits liability for death or personal injury caused by negligence, fraud or any other liability that cannot lawfully be excluded.

By using the App you agree to indemnify, defend and hold harmless Seadays, its contributors and service providers from and against any claims, liabilities, damages, losses, costs and expenses (including reasonable legal fees) arising out of or in connection with your breach of these Terms, your misuse of the App or your reliance on its outputs, except to the extent that such claims arise from our own negligence or wilful misconduct.

7. Third‑party services and accountants

The App uses Google Firebase (including Authentication, Firestore and Firebase Storage) to authenticate user accounts, store structured data and keep uploaded documents. These services may store data outside the UK or EU; under UK and EU data protection law you must be informed if your data is transferred internationally and the safeguards in place, as described by the Information Commissioner's Office (ico.org.uk). We rely on Google's Standard Contractual Clauses and related safeguards, and Google may process your files to provide threat‑detection and content‑safety services.

We may create aggregated and anonymised insights (for example, counts of voyages logged or average trip durations) to understand how the App is used, improve functionality and develop new features. These statistics never identify individual users, and any external sharing is limited to information that cannot be traced back to you.

We may also offer to share your name and email address with selected accountants so that they can contact you about tax advice. We will only do this if you opt‑in during sign‑up or in your account settings. You may also choose to share your recorded travel dates and selected uploaded documents with an accountant. You can withdraw any such sharing at any time in your profile settings or by contacting us.

8. Notifications

By creating an account you agree to receive essential service emails (such as password resets, legal notices and reminders when your recorded days may break an eligible period). We send these under our legitimate interests in operating the service. You may also opt‑in to receive occasional product updates, feedback requests or marketing messages; you can withdraw this consent at any time.

9. Suspension and termination

We may suspend or terminate your account if you breach these Terms, upload prohibited content or misuse the App. You may delete your account at any time. Upon termination we will delete or anonymise your personal data, including uploaded documents, in accordance with our retention policy (see Privacy Policy) unless we must retain it for legal, accounting or dispute‑resolution reasons. Residual copies may remain in backup systems for up to 30 days before being overwritten.

10. Changes to these Terms

We may amend these Terms from time to time. When we do, we will post the updated version in the App and update the "Last updated" date. Your continued use of the App after any changes constitutes your acceptance of the new Terms.

11. Governing law

These Terms and any dispute arising from them are governed by the laws of England and Wales. The courts of England and Wales have exclusive jurisdiction to settle any dispute arising from or connected with these Terms.