A recurring surprise for internationally mobile investors: nationality almost never decides what tax incentives you can use. Tax residency does.
Every country in this series — the UK, France, Spain, Belgium, Germany, Italy, Estonia — structures its investment incentives to stimulate its own economy. That means the benefits are reserved for people inside its tax system. A French national living in London cannot claim France’s JEI relief; a British national living in Madrid cannot claim SEIS relief without UK tax to set it against — but may well qualify for Spain’s own 50% deduction. The passport is irrelevant; the tax home is everything.
The mechanics behind this are worth understanding. Most incentives are structured as deductions or reductions against domestic tax — which by definition require domestic tax to exist. A smaller group work as capital-gains exemptions, which occasionally reach non-residents under narrow treaty conditions. And almost all schemes restrict the target company by geography too: French relief for French and European companies, Spanish relief for Spanish company forms, Belgian relief for Belgian companies, German grants for German-registered startups. A UK venture is outside nearly all of them.
Three practical consequences. First: if you relocate, your incentive landscape changes completely — often within one tax year. Second: if you invest across borders, do not assume any home relief follows your money; usually none does. Third: judge a cross-border venture on its own merits — team, governance, market, structure — because that is what you are actually buying. The rest of this series covers each country’s rules for its own residents, so you know exactly which side of each border you stand on.
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