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Compare jurisdictions, side by side.

Pick up to 4 countries and see residency, company, banking, family, and risk notes line up. No prices, no marketing packages - just the working notes.

 PT flagPortugal

Europe

ME flagMontenegro

Europe

AR flagArgentina

Latin America

OverviewPortugal is a popular EU destination for individuals, families, and remote professionals. Bordercase coordinates assessment across the main residency routes and family relocation logistics, working with licensed Portuguese partners for filings.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.
Best for
  • Families
  • Remote workers
  • Founders
  • EU access
  • Cost of living
  • Coastal living
  • Regional residency
  • Latin America hub
  • Cost of living
  • Founders
  • Families
CurrencyEUREURARS
LanguagePortugueseMontenegrin / SerbianSpanish
Time zoneUTC+1UTC+1UTC-3
EU memberYesNoNo
SchengenYesNoNo
Residency

Common Portuguese residency routes:

  • D7 - passive income / pension
  • D8 - digital nomad / remote work
  • D2 - entrepreneur / self-employed
  • D3 - highly qualified workers
  • Tech Visa - eligible tech roles via accredited companies
  • Golden Visa - restricted in scope after recent reforms
  • Family reunification on most permits

Each has different income, residency-day, and renewal requirements.

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
Company setup

Portugal supports Lda (private limited) and SA (public limited) structures. Tax registration, social security registration, and a Portuguese tax representative are typically required. Substance, accounting, and reporting obligations are real.

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.

Banking

Personal accounts are accessible to residents and many non-residents; documentation is structured and predictable. Corporate banking depends on company structure and intended activity; Bordercase coordinates with banking partners for introductions.

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.

Family

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

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.

Risks

Risks Bordercase watches for in Portuguese cases:

  • AIMA processing delays (formerly SEF)
  • Misalignment between visa type and actual activity
  • Tax residence triggered by accident - NHR window timing matters
  • Past EU Schengen overstays must be disclosed
  • Real estate vs investment routes have changed materially

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
Documents

Typical document pack for Portuguese residency:

  • Passport
  • NIF (Portuguese tax number)
  • Proof of accommodation (lease, deed, or invitation)
  • Proof of income or assets (varies by route)
  • Criminal record certificate with apostille
  • Health insurance valid in Portugal
  • Marriage / birth certificates for family routes
  • Certified translations where required

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

Country pages stay the authoritative source. This view is a side-by-side; nothing here promises a particular outcome.