Participant ID or user ID forgotten

Basic steps

  1. Check old letters or documents from FinanzOnline.
  2. Look for participant ID, user ID, or username.
  3. Use official FinanzOnline help if details are missing.

Many people mix up participant ID, user ID, and username.

Because of this, login often fails even when the details look correct.

Important notes

  • Participant ID and user ID are not the same.
  • Wrong entries can lock your access.
  • Never share login details publicly or with unknown people.

Next step

If you can no longer find your login details, contact the FinanzOnline hotline or your tax office.

Official links

View all official sources

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Updated: 2026-05-07

This content is general guidance only. It is not legal advice and does not replace official information from the responsible authority.

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