To back a startup in another country, you buy into one of three things: the local operating company, a holding company it set up somewhere investors know (often Delaware, the Cayman Islands or Singapore), or an SPV run by a syndicate lead. Then you plan for currency moves, home-country tax and a slower, more formal exit.
The company is the easy part to judge. A good team with a growing product looks the same in Lagos, Lisbon or Seoul. What changes across a border is everything around the company: which law governs your shares, which currency the business earns in, which tax office takes a cut, and how many signatures and filings stand between a term sheet and a closed round.
The wrapper rarely makes a deal good, but it can easily make a good deal painful. This guide is about the wrapper. Treat it as a map of questions to take to a lawyer and a tax adviser in both countries, not as legal or tax advice.
The three ways to hold a foreign startup
1. Shares in the local company. You invest directly into, say, a German GmbH, a French SAS or a Brazilian limitada. You get the rights local company law gives a minority shareholder, in the local language, and you follow local formalities. In Germany, for example, transfers of GmbH shares have to be notarized, which adds cost and time to every round and every sale.
2. Shares in a holding company. Many startups that raise from foreign investors put a parent company on top of the local business. The common pattern for companies that want US investors is a "Delaware flip": a Delaware C corporation owns the operating subsidiary, and investors hold the Delaware stock. Companies with investors from many countries often use a Cayman Islands holding company, and Southeast Asian startups frequently hold everything through Singapore. For an angel, this is usually the cleanest option because the instruments and investor rights work the way most funds expect.
3. An SPV or syndicate. A lead investor forms a special purpose vehicle, the SPV invests in the startup, and you invest in the SPV. The lead handles the foreign paperwork, banking and cap table entry. You pay for that with carry and fees, and you give up a direct relationship with the company.
The instrument matters too. A SAFE is a US document built for US companies. Outside the US you'll see local versions and alternatives: UK angels who want SEIS or EIS tax relief usually sign an advance subscription agreement instead, because those reliefs have conditions a standard SAFE doesn't meet. Ask which document you are signing and which country's law governs it before you compare valuations.
What changes legally when the company is abroad?
Three things come up again and again.
Your own securities rules still apply to you. A US angel buying into a foreign company is still dealing with US rules on who may invest, and the company relies on its own country's exemptions to sell to you. The lead investor or the company's counsel should be able to tell you which rules they rely on.
Foreign investment screening. Many countries review foreign stakes in sensitive sectors. The US has CFIUS, the UK has the National Security and Investment Act 2021, and Germany, France and Japan run their own reviews. Small angel checks usually pass without notice, but in defense, semiconductors, AI, telecoms or critical infrastructure, ask whether a filing is needed before you wire.
Know-your-customer paperwork. Expect certified passport copies, proof of address and sometimes a notarized or apostilled document. Budget a few weeks, not a few days.
Currency risk: which money are you really betting on?
When you invest abroad, three currencies can be in play: the one you invest in, the one the company earns and spends in, and the one an acquirer or exchange will price the exit in. A Delaware parent doesn't change the second one. A Latin American marketplace with a US holding company still collects most of its revenue in local currency.
That matters because emerging-market currencies can move a long way during a normal holding period. The Argentine peso and the Turkish lira both lost much of their value against the dollar in the early 2020s, and Argentina's capital controls made it hard for companies to move money out at all. A startup can grow strongly in local terms and still look flat in dollars.
You can't hedge a seven-year private position in any practical way at angel check sizes. What you can do:
Ask which currency the company earns in and which it holds cash in.
Prefer companies that sell in dollars or euros, or that keep a meaningful share of cash offshore.
Size each foreign check as one of many, so a currency shock in one country doesn't sink the portfolio.
How are cross-border angel investments taxed?
The general rule is that you pay capital gains tax where you live. Tax treaties between countries usually stop the same gain from being fully taxed twice, normally by letting you credit tax paid abroad against tax owed at home. But there are exceptions worth knowing:
Some countries tax non-residents on gains from local shares. India is a well-known example, and treaty terms can change the result. Find out before you invest, not at exit.
Home-country incentives often stop at the border. The US qualified small business stock exclusion (Section 1202) applies only to stock in a domestic C corporation, so a Delaware parent may qualify where a foreign company won't. The UK's SEIS and EIS reliefs need a UK permanent establishment. Losing a relief can change the after-tax result of a winner more than the valuation did.
Extra rules for US taxpayers. Foreign companies can raise questions under the passive foreign investment company (PFIC) and controlled foreign corporation rules, and foreign shares you hold directly may need to be reported on Form 8938. A US tax adviser who works with startups will know when these apply.
Where do angels look outside the US?
There's no single best market, but some ecosystems are easier for a foreign angel to enter because their startups already raise from abroad. In Europe, London, Berlin, Paris, Stockholm and Amsterdam have deep local investor bases and familiar structures, and Singapore is the usual holding base for Southeast Asia. In Latin America, São Paulo, Mexico City and Bogotá have produced companies that flipped to US parents; the guide to angel investing in Latin America covers the region. Separate guides cover angel investing in Africa, backing startups in the Middle East, investing in India as a US angel and angel investing in Japan and South Korea.
It also helps to see the deal from the founder's chair. I raised three seed rounds as a founder, and the founder-side view of these same structures is in how founders raise from international investors.
A checklist before you wire money abroad
Name the entity you are buying into and the law that governs the shareholder agreement.
Confirm the instrument (SAFE, local convertible, priced shares) and whether a local version is standard.
Ask whether a foreign investment filing is needed for the company's sector.
Map the revenue currency, where the cash sits, and any limits on moving it.
Ask a tax adviser how the gain is taxed in both countries and which home-country reliefs you lose.
Decide whether a trusted syndicate lead should carry the paperwork instead of you.
Keep the check small relative to your portfolio, as you would at home.
More guides on deal terms, syndicates and portfolio building are in the angel investing section.
Frequently Asked Questions
Q:Can a US angel invest in a startup outside the US?
Yes. US investors back foreign startups all the time, directly or through SPVs. You still follow US rules on who may invest, and the company follows its own country's rules for selling shares to foreigners, so ask the company's counsel which exemptions they use.
Q:Will I pay tax twice on a foreign startup exit?
Usually not in full. Most countries tax residents on worldwide gains, and tax treaties generally let you credit foreign tax against the tax you owe at home. Some countries tax non-residents on local share sales, so check the treaty before you invest.
Q:What is a Delaware flip?
It's a restructuring where a startup creates a Delaware C corporation that becomes the parent of its local operating company, and shareholders swap their local shares for Delaware stock. Founders do it to make raising from US funds easier, and it can make US tax treatment and exit paperwork simpler for US angels.
Q:Is investing through a syndicate safer for international deals?
It isn't safer on the company's risk, but it can be easier on the legal and banking work. A good lead knows the local lawyers and filings and handles the cap table, in exchange for carry and fees, and you give up a direct line to the founders.
Q:Do foreign startups use SAFEs?
Many that raise from US investors do, especially after a Delaware flip. Others use local instruments, such as advance subscription agreements in the UK, or go straight to priced equity because local company law makes convertibles awkward.