What is Jurisdiction?

Jurisdiction is the legal authority of a court or government to make and enforce decisions within a specific geographic area. For Web3, it matters because decentralized apps operate globally but laws apply locally.

How does Jurisdiction work?

User location - Where you are usually determines your primary jurisdiction.
Company incorporation - Where a company is registered determines which laws it must follow.
Activity type - Different activities (trading, lending, custody) are regulated differently by jurisdiction.
Tax residency - Where you're a tax resident determines your crypto tax obligations.
Enforcement power - Only jurisdictions with authority over you can actually enforce their laws.

Why does Jurisdiction matter?

Jurisdiction determines what you can legally do with crypto. Rules vary dramatically: some countries allow free trading, others ban it entirely.

Key features of Jurisdiction

Geographic boundaries define legal authority
Multiple jurisdictions can apply to one transaction
Tax treatment and regulatory frameworks vary by country
Creates compliance complexity for global dApps

Examples of Jurisdiction

The US treats many tokens as securities under SEC rules. The EU's MiCA requires exchanges to register.

El Salvador made Bitcoin legal tender. A New York user trading on a Singapore exchange faces two jurisdictions simultaneously.