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Countries

	Argentina Latin America	Serbia Europe	Bulgaria Europe
Overview	Argentina is a major South American economy with structured residency routes and a competitive cost of living for international founders and families. Bordercase coordinates with licensed Argentine 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.	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	Latin America hub Cost of living Founders Families	Founders IT professionals Cost of living Regional hub	Founders EU access Cost of living
Currency	ARS	RSD	BGN / EUR transition
Language	Spanish	Serbian	Bulgarian
Time zone	UTC-3	UTC+1	UTC+2
EU member	No	No	Yes
Schengen	No	No	Yes
Residency	Argentine residency routes: Rentista visa - passive income / pension Investor visa - qualifying investment in an Argentine business Worker visa - employer-sponsored Family routes - spouse, children, parents MERCOSUR fast-track for nationals of member states	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.	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	SA (Sociedad Anónima) and SRL (Sociedad de Responsabilidad Limitada) are the standard structures. CUIT, IGJ registration, and AFIP tax registration follow.	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.	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	Residency unlocks personal banking. Forex controls and currency volatility are part of the landscape; multi-jurisdiction structuring is common.	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	Family reunification is supported on most routes. Schools (public, private, English, German, French) are widely available in Buenos Aires.	Family reunification is supported. International schools (English, French, Russian) are available in Belgrade.	Family reunification is supported. Schools (public, private, English, German, French) are concentrated in Sofia, Plovdiv, and Varna.
Risks	Risks Bordercase watches for in Argentina: Currency / forex controls Tax residency triggers Document apostille + Spanish translation requirements	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	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 Argentine documents: Passport Criminal record certificate (apostilled) Marriage / birth certificates for family Proof of income or investment Health insurance	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.	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.

Argentina

Latin America

Serbia

Europe

Bulgaria

Europe

Overview

Argentina is a major South American economy with structured residency routes and a competitive cost of living for international founders and families. Bordercase coordinates with licensed Argentine 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.

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

Latin America hub
Cost of living
Founders
Families

Founders
IT professionals
Cost of living
Regional hub

Founders
EU access
Cost of living

Currency

ARS

RSD

BGN / EUR transition

Language

Spanish

Serbian

Bulgarian

Time zone

UTC-3

UTC+1

UTC+2

EU member

Yes

Schengen

Yes

Residency

Argentine residency routes:

Rentista visa - passive income / pension
Investor visa - qualifying investment in an Argentine business
Worker visa - employer-sponsored
Family routes - spouse, children, parents
MERCOSUR fast-track for nationals of member states

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.

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

SA (Sociedad Anónima) and SRL (Sociedad de Responsabilidad Limitada) are the standard structures. CUIT, IGJ registration, and AFIP tax registration follow.

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.

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

Residency unlocks personal banking. Forex controls and currency volatility are part of the landscape; multi-jurisdiction structuring is common.

Personal and corporate banking for residents is broadly accessible. Source-of-funds documentation matters for non-standard cases. Bordercase coordinates banking introductions.

Family

Family reunification is supported on most routes. Schools (public, private, English, German, French) are widely available in Buenos Aires.

Family reunification is supported. International schools (English, French, Russian) are available in Belgrade.

Family reunification is supported. Schools (public, private, English, German, French) are concentrated in Sofia, Plovdiv, and Varna.

Risks

Risks Bordercase watches for in Argentina:

Currency / forex controls
Tax residency triggers
Document apostille + Spanish translation requirements

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

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 Argentine documents:

Passport
Criminal record certificate (apostilled)
Marriage / birth certificates for family
Proof of income or investment
Health insurance

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.

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.