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	Spain Europe	Romania Europe	Estonia Europe	Serbia Europe
Overview	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.

Residency	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	Estonian residency routes: Start-up visa - for founders of qualifying start-ups Digital nomad visa - for eligible remote workers Work permit - employer-sponsored Family routes - spouse / dependants Note: e-Residency is NOT a residence permit - it is a digital identity for managing an Estonian company remotely.	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.

Company setup	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.	OÜ (private limited) is the standard structure, formed online via e-Residency or in person. Reporting obligations are real but proportionate; accounting partners are widely available.	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.

Banking	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.	Estonian banks have tightened KYC for non-resident e-residents; many international founders rely on EMIs (Wise, Revolut Business, Payoneer, etc.) for day-to-day banking. Local bank accounts typically require strong substance evidence.	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 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.	Family relocation is supported on the work and start-up visa routes; schooling and healthcare access follow the main applicant's residency.	Family reunification is supported. International schools (English, French, Russian) are available in Belgrade.

Risks	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	Common pitfalls Bordercase watches for: Confusing e-Residency with physical residency Banking-only setups without substance - likely flagged Crypto, gambling, and other regulated industries face additional friction Tax residence triggered by 183 days even without a residence permit	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

Documents	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.	For e-Residency: Passport Application form Biometric collection at the chosen Estonian embassy or pickup point For physical residency: Passport Criminal record certificate Proof of income Accommodation evidence Health insurance Business plan (start-up visa)	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.