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	Saint Kitts and Nevis Central America & Caribbean	Bulgaria Europe	Serbia Europe
Overview	Saint Kitts and Nevis is a Caribbean jurisdiction with one of the oldest citizenship-by-investment programmes. Bordercase coordinates with authorised local agents and licensed advisers - citizenship outcomes remain at the discretion of the Citizenship by Investment Unit.	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.	Serbia is an attractive non-EU European jurisdiction for founders, IT professionals, and remote workers - with accessible residency and competitive costs. Bordercase coordinates with licensed Serbian partners for filings.
Best for	Second passport Caribbean residency Asset planning	Founders EU access Cost of living	Founders IT professionals Cost of living Regional hub
Currency	XCD / USD	BGN / EUR transition	RSD
Language	English	Bulgarian	Serbian
Time zone	UTC-4	UTC+2	UTC+1
EU member	No	Yes	No
Schengen	No	Yes	No
Residency	Saint Kitts and Nevis routes: Citizenship by Investment (CBI) via the Sustainable Growth Fund CBI via approved real-estate investment Standard work / family routes Citizenship outcomes remain at the discretion of the Citizenship by Investment Unit.	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.	Serbian residency routes: Temporary residence via employment Self-employment / business Real-estate ownership Family reunification IT-focused residency framework Permanent residence typically after 3 years of continuous temporary residence.
Company setup	Nevis IBCs and LLCs are commonly used in international structures. Substance, beneficial ownership disclosure, and AML standards have tightened materially.	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.	DOO (limited liability) is the standard structure. Formation is well-documented, with online steps available. Tax registration (PIB) and APR (Business Registers Agency) registration follow.
Banking	Domestic and offshore banking options exist but have become more selective on KYC and source of funds. Bordercase coordinates banking pack preparation and partner introductions.	Personal and corporate banking for residents is broadly accessible. Source-of-funds documentation matters for non-standard cases. Bordercase coordinates banking introductions.	Personal and corporate banking for residents is broadly accessible. Source-of-funds documentation matters for non-standard cases. Bordercase coordinates banking introductions.
Family	CBI applications can include qualifying dependants - spouse, children, and in some cases parents - under specific conditions.	Family reunification is supported. Schools (public, private, English, German, French) are concentrated in Sofia, Plovdiv, and Varna.	Family reunification is supported. International schools (English, French, Russian) are available in Belgrade.
Risks	Risks Bordercase watches for in Saint Kitts: Programme parameters change Due diligence has tightened materially Rejection rates have risen for incomplete or unclear source-of-funds presentations Visa-revocation and reputational risks if information is misrepresented	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	Risks Bordercase watches for in Serbia: Tax residency triggers VAT registration timing Processing variations between MUP offices EU Schengen access requires planning for cross-border travel
Documents	Typical CBI documents: Passport Due diligence questionnaires Source-of-funds evidence (extensive) Employment / business documentation Family certificates with apostille and certified translation Police clearance certificates for all countries of residence in the prior 10 years	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.	Typical Serbian residency documents: Passport Criminal record certificate Proof of address Basis for residence (employment, business, etc.) Health insurance Family certificates Apostilled and translated to Serbian.

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