Compare jurisdictions, side by side.

Bulgarian residency routes:

• Employment-based residence
• Business / self-employment routes
• Retirement / pensioner residency
• Family reunification
• EU citizen-derivative routes

Permanent residence typically after 5 years.

Slovak residency routes:

• Employment-based residence
• Start-up visa - innovative businesses
• Business / self-employment
• Family reunification
• EU citizen-derivative routes

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.

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.

OOD (LLC) and EOOD (single-shareholder LLC) are common structures. Formation is well-documented. Corporate tax is at a flat rate; VAT registration depends on activity.

S.R.O. (private limited) is the standard entity, with relatively low minimum capital and well-established formation processes. VAT registration depends on activity.

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.

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.

Personal and corporate banking for residents is broadly accessible. Source-of-funds documentation matters for non-standard cases. Bordercase coordinates banking introductions.

Resident banking is straightforward; corporate banking varies by activity. Bordercase coordinates introductions for cross-border cases.

Personal and corporate banking for residents is broadly accessible. Source-of-funds documentation matters for non-standard cases. Bordercase coordinates banking introductions.

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.

Family reunification is supported. Schools (public, private, English, German, French) are concentrated in Sofia, Plovdiv, and Varna.

Family reunification is supported. International schools are available in Bratislava.

Family reunification is supported. International schools (English, French, Russian) are available in Belgrade.

Family relocation is supported on the work and start-up visa routes; schooling and healthcare access follow the main applicant's residency.

Risks Bordercase watches for in Bulgaria:

• Tax residency triggers
• VAT classification on cross-border services
• Processing variations between regions
• Euro adoption is in progress - operational planning needed

Risks Bordercase watches for in Slovakia:

• Tax residency triggers
• VAT registration timing for cross-border services
• Processing variations between districts

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

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

Typical Bulgarian residency documents:

• Passport
• Criminal record certificate
• Proof of address
• Basis for residence (employment, business, etc.)
• Health insurance
• Family certificates

Apostilled and translated to Bulgarian.

Typical Slovak residency documents:

• Passport
• Criminal record certificate
• Proof of address
• Health insurance
• Employment or business documentation
• Family certificates with apostille and translation

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.

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)