An Estonian CASP authorization under MiCA (Regulation (EU) 2023/1114) grants you the right to operate across all 27 EU member states without obtaining a separate license in each country. That right is called a passport, and the mechanism behind it is a formal notification procedure under MiCA Article 65 — not an automatic entry. Understanding how it works determines how fast you can open in a new market and what obligations follow you there.
Once Finantsinspektsioon (FSA Estonia) grants your CASP authorization, you notify the FSA in writing of your intention to provide crypto-asset services in one or more host member states. Your notification must specify the services you intend to offer, the target member states, and a start date. Under Article 65(4) of MiCA, the FSA then forwards that notification to the relevant host-state competent authorities. The host-state authority cannot refuse entry — it receives the notification for information purposes only, not for approval.
Notification mechanics
Under MiCA Art. 65(4), the FSA must transmit your cross-border notification to the host-state competent authority within 15 calendar days of receiving a complete notification. You may begin providing the notified services in the host state once the notification has been transmitted. ESMA maintains a public register of all passported CASPs, making your authorization status verifiable by counterparties and clients across the EU. The host-state regulator monitors your conduct once you operate in its territory but cannot block your entry based on the notification alone. You must notify separately for each additional service type or each new jurisdiction — a single blanket notification does not cover future expansions.
The services that can be passported are exactly those listed in your CASP authorization: operating a trading platform for crypto-assets, exchanging crypto-assets for funds or other crypto-assets, executing orders, placing crypto-assets, receiving and transmitting orders, providing portfolio management, providing advice, and providing transfer services. Your passport covers only the services your home-state authorization specifies — if your Estonian license covers exchange and custody but not portfolio management, you cannot passport portfolio management into Germany or France without first expanding your home authorization.
For businesses targeting multiple EU markets, this structure has a concrete operational advantage over non-EU licensing. A company licensed in, say, the British Virgin Islands or the Cayman Islands must negotiate bilateral arrangements or obtain fresh licenses country by country in Europe — a process that can take 12–24 months per jurisdiction and cost €50,000–€200,000 per market. The MiCA passporting route from Estonia compresses that entire EU-wide expansion into a single administrative step triggered by a 15-calendar-day notification window. The CASP authorization Estonia process under MiCA crypto regulation Estonia thus functions as a single entry point to a market of roughly 450 million people.
One practical point: host-state regulators retain supervisory authority over how you conduct business within their borders. Anti-money-laundering requirements, local marketing rules, and consumer-protection obligations in each host state still apply. The passport removes the licensing barrier; it does not create a regulatory vacuum. Build your compliance program to reflect the rules of every jurisdiction you passport into, not just Estonia’s.