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Track your days at sea. Seamans Tax keeps a record of your voyages and shows your HMRC Seafarers' Earnings Deduction (SED) qualifying status at a glance.

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• Automatic UK border detection
• iCloud sync across your devices
• CSV and PDF import and export

Download Seamans Tax on the App Store

Google Play: coming soon

Privacy

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Your name, email and voyage records never leave your device, except into your own backup. The only data that leaves the app is the limited diagnostic information described below.

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• Your records stay on your device, and in your own backup: your iCloud account on iPhone, your Google account backup on Android. We cannot read either.
• Location is used on your device only, for UK border detection, and is never sent to us or anyone else.
• Text recognition: when you import midnight position reports on Android, the text is read on your device using Google's ML Kit. Your images and the text in them never leave your phone. ML Kit does send Google a small amount of diagnostic information (device model and OS version, app version, a device identifier, performance metrics and error codes), which Google uses for diagnostics and usage analytics. This data is encrypted in transit and is not shared with anyone else.
• Purchases are handled by Apple or Google. We never see your payment details.
• No advertising, no third-party tracking, and no analytics of our own.
• Delete All Data in Settings erases everything the app stores on your device.

Seamans Tax is published by Kevin Tough (Latitude 57). Last updated 7 November 2026.

Support

Email [email protected].