What are the main requirements for a Bulgarian Type D visa?

Core requirements for a Type D visa include a passport with adequate remaining validity and blank pages, evidence of where you will live (such as a lease, title deed or notarised host declaration), and health insurance covering Bulgaria, commonly cited at a minimum of 30,000 euros.

You must also show sufficient means of subsistence so that you will not rely on the social assistance system, and document the specific long-term ground for your stay. Requirements can vary slightly by the ground you apply under, so check the exact list for your category with the relevant Bulgarian embassy.