EU company setup while living abroad: what actually matters (not tax rates)

I’ve helped structure a few cross-border setups for solo operators and small teams, and the biggest misconception I see is optimizing for tax rate first instead of operational reality.If you’re living in one EU country and running a business registered in another, the core risks usually come down to three things:1) Place of Effective Management (POEM) – where decisions are actually made2) VAT handling – especially reverse charge + VIES consistency3) Substance vs optics – whether your setup looks credible to banks and clientsFrom experience, there are generally 3 viable approaches:- Stay local (sole trader or local company) → simplest, highest clarity, less flexibility- Cross-border EU entity (e.g., Bulgaria, Estonia, etc.) → efficient if properly structured- Hybrid setups (EOR / contractor mix) → flexible but often messy long-termExecution matters more than jurisdiction. I’ve seen people use local law firms, accountants, or bundled services (Bulgarian .llc, Xolo, etc.), but the outcome depends on how well accounting, VAT, and decision-making are aligned.If you’ve done this while living in another EU country, what ended up being the real friction point: tax, banking, or proving substance?