WHAT’S NEW
Digital assets guides
and Newsletters
From ATH21 we want to inform you about the legal and fiscal news that may interest you. Download our useful guides and don’t miss anything.

20 april, 2023
Full Guide MiCA 2023
Here is the full text of the MiCA approved by the European Parliament on April 12, 2023.
April, 2023
Real Decreto 249/2023, of April 4
Establishes new obligations in relation to digital assets.
February 16, 2023
Glossary of Blockchain and digital assets terms
If you are new to this world, here are the basics you need to know.
February 16, 2023
How to invoice NFTs
We tell you how you should invoice your NFTs and how you have to declare them in the Renta.
January 15, 2023
Glossary Commercial / Corporate
Learn the ABC’s of the most commonly used terms in the corporate legal world.
Dicember 22, 2022
Startups Law 2023
Finally, the so-called Law 28/2022, of December 21, on the promotion of the startup ecosystem (Startup Law) has been published.
December 3, 2022
Legal texts for your website
Here is a sample of the terms and conditions that you should have on your website and email.
January, 2022
MiCA Guide 2022
MiCa, or “Markets in digital assets”, a regulation that regulates categories of digital assets at the European level.
February 15, 2022
CNMV Guide advertising campaigns
Guide for the adaptation of digital assets communications and commercial campaigns to the new Law.
February 15, 2022
CNMV Guide advertising campaigns
Guide for the adaptation of digital assets communications and commercial campaigns to the new Law.