Cross-border rules & transactions

as_of: 2026-08 (verify before relying)

Common multi-entity structures

Delaware flip: foreign co becomes subsidiary of a new Delaware C-Corp (share swap). Done to access US VC. Watch: taxable event risk in home country, India FEMA round-tripping rules, exit-tax regimes.
Singapore holdco + India opco: the standard structure for Indian startups raising global VC. SG parent owns IP + raises capital; India sub employs and executes. FDI flows SG→India under automatic route.
UAE holdco: for MENA operations or founder tax residency; weaker treaty access than SG (treaty benefits require substance).
UK topco + subsidiaries: common for European groups; SEIS/EIS only work at the UK topco level.

Permanent establishment (PE)

An entity in country A with employees/dependent agents habitually concluding contracts in country B creates a taxable PE in B. Remote teams create PE risk — use an Employer of Record or a local subsidiary once headcount in a country is real. Management "place of effective management" (POEM) rules can drag a whole company's tax residency to where the founders sit (India applies POEM; UK/SG have similar central-management tests). A UAE/SG entity run day-to-day from India or the UK is likely tax-resident there.

Withholding taxes (typical treaty-reduced rates)

Dividends: US→foreign 30% default (15%/5% under treaties; no US treaty with SG or UAE — full 30% on US dividends to SG/UAE holdcos). India→abroad ~20% + surcharge (10–15% treaty). UK: no dividend withholding. SG: none. UAE: none.
Royalties/interest/fees: each pair differs; check the specific DTA. India's TDS on foreign payments is the most aggressive.
Treaty benefit requires beneficial ownership + substance (post-BEPS principal-purpose test); letterbox holdcos get denied.

Transfer pricing

Any intercompany transaction (IP license, services, cost-plus dev center, loans) must be at arm's length with documentation. India enforces hard (dev centers typically cost-plus 15–20%+ markup). Moving IP between entities later is a taxable disposal — decide IP ownership at day one, it's the most expensive thing to fix retroactively.

Controlled Foreign Corporation (CFC) rules

US: GILTI/Subpart F tax US shareholders currently on foreign sub profits.
UK: CFC regime taxes UK cos on low-taxed foreign sub profits.
India: no formal CFC rules, but POEM achieves similar results.
Practical meaning: a founder's personal tax residency and the parent's location decide whether "0% in UAE" is real or illusory.

OECD Pillar Two

15% global minimum tax for groups with €750M+ revenue. Irrelevant to startups until very late stage, but it has ended the pure-zero-tax endgame (UAE DMTT, SG/UK top-up taxes all live from 2025).

Sanctions/export controls

US export controls (EAR/ITAR) and OFAC sanctions follow US-origin tech and USD payments everywhere. UK/EU equivalents. India PN3 restricts Chinese investment. NSIA (UK) and CFIUS (US) screen foreign investment in sensitive sectors.

Payment rails reality

US entity: Stripe/ACH/wires trivial.
UK: Stripe + faster payments + SEPA access easy.
SG: excellent rails, multi-currency accounts standard.
UAE: improving; Stripe available; USD correspondent banking scrutiny.
India: inbound easy, outbound controlled (FEMA); Stripe India for domestic; international pricing usually via foreign parent.

Rule of thumb

Incorporate where your investors and customers are, employ where your people are, and never let IP or effective management sit accidentally in a third country.