Compare jurisdictions, side by side.

German residency routes:

• Blue Card - high-skilled employees
• Freiberufler / Selbständig - freelancer / self-employed
• Employer-sponsored work permits
• Entrepreneur visa
• Family reunification

Permanent residence typically after 5 years (faster on Blue Card).

Montenegrin residency routes:

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

Permanent residence typically after 5 years.

Croatian residency routes:

• Employment-based residence
• Digital Nomad Residence Permit - remote workers
• Business / self-employment
• Family reunification
• EU citizen-derivative routes

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.

GmbH and UG (haftungsbeschränkt) are common structures. Notary involvement is required for formation. Tax registration, trade registration (Gewerbeanmeldung), and German GAAP / tax accounting standards apply.

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

d.o.o. (limited liability) is the standard structure; jednostavno d.o.o. is a simplified low-capital variant. Formation involves notary and court registration. Tax and VAT registration follow.

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.

Personal banking for residents is well established; certain non-resident structures take longer. SCHUFA history is relevant for residents. Bordercase coordinates introductions for cross-border cases.

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

Resident banking is broadly accessible; corporate banking depends on activity. Bordercase coordinates introductions for cross-border cases.

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.

Family reunification is well supported. Schools (public, private, bilingual, and international) are widely available; international schools are concentrated in major cities.

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

Family reunification is supported. International schools are available in Zagreb and along the coast.

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.

Risks Bordercase watches for in Germany:

• Tax residency triggers (183 days + centre of interests)
• Late VAT registration on cross-border services
• Language and bureaucratic friction in some Länder
• Freiberufler vs Gewerbe classification disputes

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 Croatia:

• Tax residency triggers
• Processing variations
• Digital nomad permit renewal rules and re-entry constraints

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

Typical German residency documents:

• Passport
• Recognised qualifications (where required)
• Contract or business plan
• Accommodation evidence (Anmeldung)
• Health insurance
• Family certificates

Apostilled and translated to German.

Typical Montenegrin residency documents:

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

Apostilled and translated.

Typical Croatian residency documents:

• Passport
• Criminal record certificate
• Proof of accommodation
• Health insurance
• Employment / income evidence
• Family certificates

Apostilled and translated to Croatian.

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