PEO: often co-employment bundled HR. ASO: à la carte services; you remain employer of record. EOR: legal employer in country when no local entity—common for global hiring.

In many US states (and similar concepts elsewhere), companies must appoint an in-state agent for government notices and service of process—foreign founders often must use a local provider.

Often remote filing is possible in some places, but banking, notarization, and KYC may still require steps on the ground—verify per jurisdiction.

Many jurisdictions allow non-residents, but rules differ on local directors, secretary, registered address, capital, etc.—never assume one-size-fits-all.

Payroll data is highly sensitive; cross-border transfer, storage location, access control, and subprocessors must align with laws like GDPR and local rules.

Common themes: pay currency, FX rate date/source, bank fees and settlement, and reporting/FX translation rules.