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	Montenegro Europe	Slovakia Europe	Bulgaria Europe
Overview	Montenegro is a non-EU European country with structured residency routes, EU candidate status, and a growing role as a base for founders and remote workers in the region. Bordercase coordinates with licensed Montenegrin partners.	Slovakia offers EU residency and corporate structures with a stable regulatory environment and competitive costs. Bordercase coordinates with licensed Slovak partners for filings.	Bulgaria is an EU member state with competitive corporate tax, structured residency routes, and a well-developed digital infrastructure. Bordercase coordinates with licensed Bulgarian partners for filings.
Best for	Cost of living Coastal living Regional residency	Founders EU access Cost of living	Founders EU access Cost of living
Currency	EUR	EUR	BGN / EUR transition
Language	Montenegrin / Serbian	Slovak	Bulgarian
Time zone	UTC+1	UTC+1	UTC+2
EU member	No	Yes	Yes
Schengen	No	Yes	Yes
Residency	Montenegrin residency routes: Temporary residence via employment Business / self-employment Real-estate ownership Family reunification Permanent residence typically after 5 years.	Slovak residency routes: Employment-based residence Start-up visa - innovative businesses Business / self-employment Family reunification EU citizen-derivative routes	Bulgarian residency routes: Employment-based residence Business / self-employment routes Retirement / pensioner residency Family reunification EU citizen-derivative routes Permanent residence typically after 5 years.
Company setup	DOO (limited liability) is the standard structure. Formation is well-documented and reasonably fast. Tax and VAT registration follow.	S.R.O. (private limited) is the standard entity, with relatively low minimum capital and well-established formation processes. VAT registration depends on activity.	OOD (LLC) and EOOD (single-shareholder LLC) are common structures. Formation is well-documented. Corporate tax is at a flat rate; VAT registration depends on activity.
Banking	Personal banking for residents is accessible. Corporate banking depends on activity. Bordercase coordinates introductions where useful.	Resident banking is straightforward; corporate banking varies by activity. Bordercase coordinates introductions for cross-border cases.	Personal and corporate banking for residents is broadly accessible. Source-of-funds documentation matters for non-standard cases. Bordercase coordinates banking introductions.
Family	Family inclusion on residency applications is supported. International schools are available in Podgorica and on the coast.	Family reunification is supported. International schools are available in Bratislava.	Family reunification is supported. Schools (public, private, English, German, French) are concentrated in Sofia, Plovdiv, and Varna.
Risks	Risks Bordercase watches for in Montenegro: Tax residency triggers EU accession dynamics may change rules over time Processing variations between municipalities Schengen entry / exit considerations for travel planning	Risks Bordercase watches for in Slovakia: Tax residency triggers VAT registration timing for cross-border services Processing variations between districts	Risks Bordercase watches for in Bulgaria: Tax residency triggers VAT classification on cross-border services Processing variations between regions Euro adoption is in progress - operational planning needed
Documents	Typical Montenegrin residency documents: Passport Criminal record certificate Proof of accommodation Basis for residence Health insurance Family certificates Apostilled and translated.	Typical Slovak residency documents: Passport Criminal record certificate Proof of address Health insurance Employment or business documentation Family certificates with apostille and translation	Typical Bulgarian residency documents: Passport Criminal record certificate Proof of address Basis for residence (employment, business, etc.) Health insurance Family certificates Apostilled and translated to Bulgarian.

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