What is fanum tax?

The term "fanum tax" doesn't correspond to any widely recognized tax policy or concept in taxation as of my last update. It's possible that it is a specific term not widely documented, a regional or local term not recognized on a broader scale, or perhaps a term from recent developments that occurred after my September 2021 knowledge cutoff.

If "fanum tax" refers to a new or niche development, I would recommend checking the latest resources or official publications for the most accurate and timely information. This could include government publications, tax authority announcements, or industry analyses if it's related to a specific field or jurisdiction.