OAuth & Authorisation

Making Tax Digital (MTD)
Published on April 23, 2026

To keep your data safe, you must "grant authority" to Taxd to act on your behalf using a secure link to the Government Gateway.

Direct Answer

Authorisation is a secure process using the "OAuth 2.0" standard. It allows your software to connect to HMRC without you ever sharing your private Government Gateway password with the software provider.

The Process

  1. You request to link Taxd to HMRC.
  2. You sign in once via the official Government Gateway page.
  3. You grant permission, and HMRC gives Taxd a secure "token" to send your data for you.

How Taxd Helps

  • Security First: We never see or store your login credentials. We only use the encrypted tokens provided by HMRC to ensure your data is always 100% secure.
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