Compare jurisdictions, side by side.

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

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.

Grenada routes:

• Citizenship by Investment (CBI) via fund contribution or qualifying real-estate investment
• Standard work permits
• Family routes

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.

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.

Domestic companies and IBCs are common in international structures.

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.

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.

Banking is selective. Bordercase coordinates banking introductions through current partners.

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.

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.

CBI can include qualifying dependents.

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

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 Grenada:

• Programme parameters change
• Due diligence has tightened
• Reputational and revocation risks if information is misrepresented

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.

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 CBI documents:

• Passport
• Due diligence questionnaires
• Source-of-funds evidence (extensive)
• Family certificates with apostille and translation