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	Bulgaria Europe	United Kingdom Europe	Mauritius Africa
Overview	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.	The United Kingdom is a major global jurisdiction with structured (and competitive) residency, business, and skilled-worker routes. Bordercase coordinates with licensed UK partners for filings.	Mauritius is a stable jurisdiction with structured residency and corporate routes, often combined for international families and founders. Bordercase coordinates with licensed Mauritian partners.
Best for	Founders EU access Cost of living	Founders Skilled workers Global hub Banking English admin	Founders Banking Trust HNW English admin
Currency	BGN / EUR transition	GBP	MUR
Language	Bulgarian	English	English / French
Time zone	UTC+2	UTC+0	UTC+4
EU member	Yes	No	No
Schengen	Yes	No	No
Residency	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.	UK residency routes: Skilled Worker visa - employer-sponsored Innovator Founder visa - for endorsed founders Global Talent visa - for endorsed experts Self-Sponsorship via own company (with substance) Family routes - spouse / partner / dependents Ancestry visa for eligible Commonwealth nationals	Mauritius residency routes: Premium Visa - remote work Occupation Permit - investor / professional / self-employed Residence Permit by property purchase - within approved schemes Family routes
Company setup	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.	UK Limited companies are widely used internationally. HMRC corporation tax, VAT thresholds, and PSC (people with significant control) reporting apply. Substance expectations have tightened.	GBC (Global Business Company) and Domestic Companies are the standard structures. Substance requirements following OECD reforms must be considered; the GBC framework has evolved materially.
Banking	Personal and corporate banking for residents is broadly accessible. Source-of-funds documentation matters for non-standard cases. Bordercase coordinates banking introductions.	Resident banking is mature but onboarding is slow for non-residents. Many international founders use UK EMIs (Revolut, Monzo Business, etc.) alongside high-street accounts. Bordercase coordinates introductions for cross-border cases.	Local banks support resident and corporate accounts; KYC and source-of-funds requirements are real. Bordercase coordinates banking introductions.
Family	Family reunification is supported. Schools (public, private, English, German, French) are concentrated in Sofia, Plovdiv, and Varna.	Family reunification is supported. Schools (state, private, international) are widely available; competition for top schools is real.	Family inclusion is supported. International schools are available in major regions.
Risks	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 the UK: Tax residency triggers (Statutory Residence Test) Sole-rep / Innovator endorsement standards have tightened Brexit-era operational variation between UK and EU services Sponsorship Compliance for licensed sponsors	Risks Bordercase watches for in Mauritius: Substance reform impacts on Global Business Companies FATCA / CRS reporting on related accounts Mauritian residency vs physical-presence-based tax residence elsewhere Banking introductions vary by activity
Documents	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 UK documents: Passport Certificate of Sponsorship (for sponsored routes) TB test (for certain nationalities) Maintenance funds evidence Apostilled / certified documents for family routes	Typical Mauritius documents: Passport Criminal record certificate Proof of income / investment Health insurance Accommodation evidence Marriage / birth certificates for family Apostille where required.

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