Transfer files securely with HMRC: enquiries
Call or email HMRC for help transferring files securely.
Email HMRC to get help with the Transfer files securely with HMRC service: Support.SDES@hmrc.gov.uk
Phone
Call HMRC to get help with the Transfer files securely with HMRC service.
Telephone: 03000 597 222
Outside UK: +44 3000 597 222
Opening times: 9:00am to 5:30pm, Monday to Friday. Closed bank holidays.
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Guidance
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Updates to this page
Published 14 May 2025
Last updated 30 June 2026
Show all updates
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The name of the service has changed from the ‘Secure Data Exchange Service’ to ‘Transfer files securely with HMRC’.
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First published.