Plain English

Investment migration glossary

The jargon, explained without the jargon. Every term you’re likely to meet when comparing second citizenship and residency programmes.

Approval in principle
A government’s confirmation that your application has passed its checks, usually issued before the final investment is made and the passport or permit is granted.
Authorised agent
A firm formally licensed by a programme’s government to submit applications on behalf of clients. Reputable applications are filed through an authorised or government-approved agent.
Biometrics
Fingerprints and a photograph collected as part of an application. Some programmes require one short visit for this; many citizenship programmes do not require any visit at all.
Citizenship by Investment (CBI)
A legal route to a second nationality — and passport — in exchange for a qualifying investment or government contribution. Citizenship is usually granted for life and can be passed to children.
Read: what is citizenship by investment
Citizenship by Investment Unit (CIU)
The official government body that runs a country’s CBI programme — receiving applications, conducting due diligence and issuing decisions.
Common Reporting Standard (CRS)
A global framework under which banks automatically share account information with tax authorities. Relevant to how financial information is exchanged once you hold accounts in new jurisdictions.
Dependant
A family member who can be included in your application — typically a spouse and children, and often dependent parents, grandparents or adult children. Each programme defines this differently.
Dual citizenship
Holding the nationality of two countries at once. Most investment-migration programmes permit it; the key question is whether your *home* country also recognises it.
Due diligence
The background checks a government runs on every applicant — source of funds, criminal record, sanctions and reputation. Rigorous due diligence is what keeps an investment-migration passport credible and valuable.
Read: due diligence & the process
E-2 Treaty Investor Visa
A US visa that lets nationals of treaty countries live in the United States by investing in a US business. It is popular because some second citizenships (notably Grenada, and also Türkiye) make their holders eligible.
Grenada citizenship & the E-2
EB-5 Immigrant Investor Program
A US route to a green card (permanent residence) through a qualifying investment that creates American jobs. It leads to US permanent residence and, in time, citizenship.
Explore US EB-5
Golden visa
The common name for a residence-by-investment permit, typically in Europe. It grants residence rights (and often regional travel) rather than citizenship.
Compare European golden visas
Government contribution
A non-refundable payment to a state fund (for example a National Development or Economic Diversification Fund) that qualifies you for citizenship. The most common — and usually cheapest — CBI route.
Investment fund route
Qualifying by subscribing to a regulated fund (for example a Portuguese venture fund or a Hungarian real-estate fund) rather than buying property directly. Capital is usually returned at the end of the fund’s life.
Investment Migration Council (IMC)
The worldwide association for the investment-migration industry, which sets professional and ethical standards for advisers and member firms.
Minimum stay requirement
The number of days per year you must physically spend in a country to keep a residence permit — or to qualify for citizenship later. Many golden visas have little or none; citizenship almost always requires real presence.
Naturalisation
Becoming a citizen of a country after meeting its residence and other requirements, rather than by birth. The residence period required varies widely — from a few years to ten or more.
Passport Index
A ranking of the world’s passports by how many destinations each can access (visa-free, visa-on-arrival and eVisa). A quick way to compare the “power” of different nationalities.
Open the 2026 Passport Index
Permanent residence
The indefinite right to live in a country. Some programmes (such as Malta’s MPRP or Cyprus PR) grant permanent residence from the outset, rather than a permit that must be upgraded over time.
Explore Malta Permanent Residence
Residency by Investment (RBI)
The right to live in a country in exchange for an investment. Often called a “golden visa”. It is not a passport, but most RBI programmes can lead to citizenship after a set number of years of residence.
Read: what is residency by investment
Schengen Area
A group of (mostly EU) European countries that have abolished border controls between them. A Schengen residence permit or visa allows travel across the whole area. Note that some EU states — such as Cyprus — are not yet in Schengen.
Source of funds
Evidence showing that the money used for the investment was earned or acquired lawfully — for example through salary, business profits, sale of assets, inheritance or investments.
Read: the application process
Tax residency
The country that has the primary right to tax your worldwide income — determined by where you live and your ties, not by which passports you hold. A second citizenship does not, by itself, change your tax residency.
Visa-free access
Countries you can enter without arranging a visa beforehand. The headline measure of a passport’s “strength”. Related terms are visa-on-arrival (a visa issued at the border) and eVisa (an online authorisation).
Read: passport power explained

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