Birthright, descent‑based, and investment‑driven citizenship have long formed the three pillars of how people acquire a second passport. Recent policy shifts are shrinking the first two pathways while the market for citizenship‑by‑investment (CBI) expands rapidly, reshaping options for those seeking additional nationality.
Traditional pathways
| Doctrine | Basis | Typical examples |
|---|---|---|
| Jus soli (right of the soil) | Birth on a country’s territory | United States (14th Amendment), 33 countries with unconditional birthright, most in the Western Hemisphere |
| Jus sanguinis (right of blood) | Citizenship of a parent or ancestor | Italy, Ireland, Germany, most European, Asian, and African states |
| Jus pecuniae (right of money) | Economic contribution to the state | Programs in St. Kitts & Nevis, Dominica, Grenada, Jordan, etc. |
Decline of unconditional birthright citizenship
- Historically rooted in the 1608 Calvin’s Case and spread by colonial powers.
- By the early 21st century, only 33 countries still offered unconditional jus soli, with six outside the Western Hemisphere.
- Recent eliminations:
- United Kingdom – 1981
- Australia – 1986
- India – 1987 (tightened again in 2004)
- Ireland – 2005 referendum (79 % support)
- The United States is facing a potential change: Executive Order 14160 (Jan 20 2025) seeks to deny automatic citizenship to children of undocumented or temporary‑visa parents. Federal courts have issued injunctions; the Supreme Court is reviewing the case, with oral arguments expected by summer 2026. If upheld, the U.S. would become the first developed nation to curtail jus soli by executive action rather than legislation.
Tightening of descent‑based citizenship
- Jus sanguinis remains the default globally, but many states are limiting generational depth.
- Italy historically allowed unlimited transmission; a decree on 28 Mar 2025 now restricts eligibility to at least one parent or grandparent who held Italian citizenship. The prior rule theoretically covered ~80 million people worldwide.
- Ireland now requires a parental connection, and Germany is increasingly imposing “genuine link” criteria.
- These restrictions convert previously “free” pathways into potential demand for paid alternatives.
Rapid growth of citizenship‑by‑investment
- Modern CBI programs trace back to St. Kitts & Nevis (1984), the world’s first after independence.
- Global capital deployed through 11 major residence and citizenship programs rose from US$2.86 billion (2011) to US$12.4 billion (2017) – a CAGR of 23.4 %.
- The broader investment‑migration market (residency + citizenship) is conservatively valued at over US$20 billion per year.
- Revenue impact on individual states:
- Dominica – CBI generated US$232 million in FY 2022, ≈ 37 % of national GDP.
- Jordan – US$1.38 billion from 531 investors (through Dec 2024).
- Grenada – 1,314 applications in 2024 produced US$186 million.
- EU attempts to curb the model: Cyprus closed its program (2020); Malta’s program was struck down by the European Court of Justice (2025). Demand persisted despite closures.
- Application spikes: UK nationals’ residency and citizenship requests rose 183 % in Q1 2025, partly driven by the loss of the non‑dom tax regime.
- Supply expansion: at least 14 countries are proposing or legislating new programs, including Argentina (first South American CBI) and St. Vincent & the Grenadines (launch slated for 2026). Overall, 15–20 sovereign nations currently run programs attracting foreign investment.
Implications
- As birthright and descent routes become more restrictive, investors increasingly view CBI as a viable alternative for mobility, tax planning, and personal security.
- The growing fiscal reliance of small economies on CBI revenues raises questions about sustainability and governance, especially where programs account for a large share of GDP.
- Prospective applicants should assess:
- Eligibility criteria – many programs now require background checks, minimum investment thresholds (often US$100 k–US$2 m), and proof of source of funds.
- Political risk – program stability can be affected by domestic policy shifts or international pressure.
- Benefits vs. costs – compare visa‑free travel, tax regimes, and residency obligations against the financial outlay.
The shift toward investment‑driven citizenship marks a fundamental change in how individuals secure additional nationality, reflecting broader trends in global mobility, economic competition, and state revenue strategies.
