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Countries

	Montenegro Europe	Argentina Latin America	Spain Europe	Romania 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.	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.	Spain offers structured EU residency routes for individuals, families, and entrepreneurs, including the digital nomad visa introduced under the Startups Law. Bordercase coordinates with licensed Spanish partners for filings.	Romania is an EU member state with structured residency routes, accessible company formation, and competitive costs for founders and remote professionals. Bordercase coordinates with licensed Romanian partners.
Best for	Cost of living Coastal living Regional residency	Latin America hub Cost of living Founders Families	Families Remote workers EU access Cost of living	Founders Digital nomads EU access Cost of living
Currency	EUR	ARS	EUR	RON
Language	Montenegrin / Serbian	Spanish	Spanish	Romanian
Time zone	UTC+1	UTC-3	UTC+1	UTC+2
EU member	No	No	Yes	Yes
Schengen	No	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.	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	Spanish residency routes: Non-Lucrative Visa - passive income, no employment in Spain Digital Nomad Visa - remote workers and self-employed (Startups Law) Self-Employed Visa Entrepreneur Visa EU citizen-derivative routes The Golden Visa has been phased out for real estate purchases.	Romanian residency routes: Employment-based residence (including the Blue Card) Digital Nomad Visa - remote workers Business / investor routes Family reunification EU citizen-derivative routes
Company setup	DOO (limited liability) is the standard structure. Formation is well-documented and reasonably fast. Tax and VAT registration follow.	SA (Sociedad Anónima) and SRL (Sociedad de Responsabilidad Limitada) are the standard structures. CUIT, IGJ registration, and AFIP tax registration follow.	SL (Sociedad Limitada) is the standard private company. Registration involves NIE / NIF, notary, mercantile registry, and tax registration. Spanish tax residency triggers worldwide income reporting; the Beckham Law (special tax regime) may apply to eligible relocated workers.	SRL (limited liability) is the standard structure. Formation involves notary and trade registry. Microcompany tax regime may apply for small businesses with eligible activities.
Banking	Personal banking for residents is accessible. Corporate banking depends on activity. Bordercase coordinates introductions where useful.	Residency unlocks personal banking. Forex controls and currency volatility are part of the landscape; multi-jurisdiction structuring is common.	Personal banking for residents is straightforward; corporate banking depends on activity and structure. Bordercase coordinates introductions for non-standard cases.	Personal and corporate banking for residents is broadly accessible. Bordercase coordinates introductions for non-standard cross-border structures.
Family	Family inclusion on residency applications is supported. International schools are available in Podgorica and on the coast.	Family reunification is supported on most routes. Schools (public, private, English, German, French) are widely available in Buenos Aires.	Family reunification is supported on most residency routes after a qualifying period. Schools (public, private, international) are widely available; the public system is generally accessible to legal residents.	Family reunification is supported. International schools (English, French, German) are concentrated in Bucharest, Cluj, and Timișoara.
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 Argentina: Currency / forex controls Tax residency triggers Document apostille + Spanish translation requirements	Risks Bordercase watches for in Spain: Tax residency triggers - 183 days + centre of interests Beckham Law (special regime) eligibility Autonomous-community tax variation Hacienda audits when planning is unclear Past Schengen overstays must be disclosed	Risks Bordercase watches for in Romania: Tax residency triggers Microcompany regime eligibility Processing variations between counties Schengen entry / exit rules now apply
Documents	Typical Montenegrin residency documents: Passport Criminal record certificate Proof of accommodation Basis for residence Health insurance Family certificates Apostilled and translated.	Typical Argentine documents: Passport Criminal record certificate (apostilled) Marriage / birth certificates for family Proof of income or investment Health insurance	Typical Spanish residency documents: Passport NIE (foreigner identification number) Criminal record certificate with apostille Proof of income / assets Health insurance with full cover in Spain Accommodation evidence Marriage / birth certificates for family routes	Typical Romanian residency documents: Passport Criminal record certificate Proof of address Basis for residence Health insurance Family certificates Apostilled and translated to Romanian.

Europe

Latin America

Europe

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.

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.

Spain offers structured EU residency routes for individuals, families, and entrepreneurs, including the digital nomad visa introduced under the Startups Law. Bordercase coordinates with licensed Spanish partners for filings.

Romania is an EU member state with structured residency routes, accessible company formation, and competitive costs for founders and remote professionals. Bordercase coordinates with licensed Romanian partners.

Best for

Cost of living
Coastal living
Regional residency

Latin America hub
Cost of living
Founders
Families

Families
Remote workers
EU access
Cost of living

Founders
Digital nomads
EU access
Cost of living

Currency

EUR

ARS

EUR

RON

Language

Montenegrin / Serbian

Spanish

Romanian

Time zone

UTC+1

UTC-3

UTC+1

UTC+2

EU member

Yes

Schengen

Yes

Residency

Montenegrin residency routes:

Temporary residence via employment
Business / self-employment
Real-estate ownership
Family reunification

Permanent residence typically after 5 years.

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

Spanish residency routes:

Non-Lucrative Visa - passive income, no employment in Spain
Digital Nomad Visa - remote workers and self-employed (Startups Law)
Self-Employed Visa
Entrepreneur Visa
EU citizen-derivative routes

The Golden Visa has been phased out for real estate purchases.

Romanian residency routes:

Employment-based residence (including the Blue Card)
Digital Nomad Visa - remote workers
Business / investor routes
Family reunification
EU citizen-derivative routes

Company setup

DOO (limited liability) is the standard structure. Formation is well-documented and reasonably fast. Tax and VAT registration follow.

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

SL (Sociedad Limitada) is the standard private company. Registration involves NIE / NIF, notary, mercantile registry, and tax registration. Spanish tax residency triggers worldwide income reporting; the Beckham Law (special tax regime) may apply to eligible relocated workers.

SRL (limited liability) is the standard structure. Formation involves notary and trade registry. Microcompany tax regime may apply for small businesses with eligible activities.

Banking

Personal banking for residents is accessible. Corporate banking depends on activity. Bordercase coordinates introductions where useful.

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

Personal banking for residents is straightforward; corporate banking depends on activity and structure. Bordercase coordinates introductions for non-standard cases.

Personal and corporate banking for residents is broadly accessible. Bordercase coordinates introductions for non-standard cross-border structures.

Family

Family inclusion on residency applications is supported. International schools are available in Podgorica and on the coast.

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

Family reunification is supported on most residency routes after a qualifying period. Schools (public, private, international) are widely available; the public system is generally accessible to legal residents.

Family reunification is supported. International schools (English, French, German) are concentrated in Bucharest, Cluj, and Timișoara.

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 Argentina:

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

Risks Bordercase watches for in Spain:

Tax residency triggers - 183 days + centre of interests
Beckham Law (special regime) eligibility
Autonomous-community tax variation
Hacienda audits when planning is unclear
Past Schengen overstays must be disclosed

Risks Bordercase watches for in Romania:

Tax residency triggers
Microcompany regime eligibility
Processing variations between counties
Schengen entry / exit rules now apply

Documents

Typical Montenegrin residency documents:

Passport
Criminal record certificate
Proof of accommodation
Basis for residence
Health insurance
Family certificates

Apostilled and translated.

Typical Argentine documents:

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

Typical Spanish residency documents:

Passport
NIE (foreigner identification number)
Criminal record certificate with apostille
Proof of income / assets
Health insurance with full cover in Spain
Accommodation evidence
Marriage / birth certificates for family routes

Typical Romanian residency documents:

Passport
Criminal record certificate
Proof of address
Basis for residence
Health insurance
Family certificates

Apostilled and translated to Romanian.