Guernsey vs Delaware (USA): which jurisdiction wins?

Guernsey vs Delaware (USA) — both credible, very different trade-offs. Below: side-by-side on the variables that actually move the decision.

	Guernsey	Delaware (USA)
Tax headline	0% (10% banking/insurance)	21% federal + 8.7% Delaware (no state tax on non-DE income)
Formation days	5	1
First-year cost	$5,500	$1,200
Treaties	12+	70+
Substance	Substance Law 2018	US tax presence considerations
Banking	Channel Islands tier-1 banks	Mercury, Brex, plus tier-1 US banks

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