The easiest countries to get citizenship fall into three groups: Argentina, where two years of legal residency qualifies you; a handful of Caribbean and Pacific nations that grant citizenship in exchange for an investment starting near $130,000; and countries like Ireland, Poland, and (with new limits) Italy, which grant citizenship based on ancestry with no residency required. Which one is “easiest” depends on whether you have time, money, or the right grandparent.
Fastest If You’re Willing to Move
Argentina is the global speed leader for standard naturalization. Law 346 lets any foreigner over 18 who has lived continuously in Argentina for two years apply for citizenship through a federal court.1United Nations. Argentina – Legislative Series The clock starts once you hold a valid temporary or permanent residence permit. There is no formal language exam, but the court interview happens in Spanish, so conversational ability is expected. You’ll also need a clean criminal record and some real connection to the country through work, investment, or community ties.
Continuous presence is the practical hurdle. Extended trips abroad can reset the two-year clock or raise flags at your hearing. Many applicants enter on a Rentista visa, designed for people with passive income, which requires roughly six months per year in-country to maintain status. Argentina also offers a $500,000 investment track that can sidestep the residency requirement.
Paraguay is the runner-up at three years of permanent residency, with a basic history and Spanish test and required ties like property, business activity, or professional work. Beyond South America, most countries want five years or more of residency. Peru, which used to match Argentina at two years, extended its requirement to five, leaving Argentina alone at the top for speed.
Fastest If You’d Rather Write a Check
Citizenship by investment (CBI) programs trade a financial contribution for a passport, and they’re the fastest legal route to a second nationality if you have the money. Costs, timelines, and passport strength vary widely.
The Caribbean
Antigua and Barbuda’s National Development Fund requires a non-refundable contribution of $230,000 for a single applicant or a family of up to four.2Citizenship by Investment Programme. NDF The real estate route requires at least $300,000 in an approved project, held for five years.3Citizenship by Investment Programme. The Citizenship by Investment Programme
St. Kitts and Nevis runs the oldest CBI program in the world. Its Sustainable Island State Contribution starts at $250,000 for a single applicant or a family of up to four.4St. Kitts and Nevis Citizenship by Investment Unit. Sustainable Island State Contribution Real estate requires at least $325,000 in an approved development, or $600,000 for a private dwelling.5St. Kitts and Nevis Citizenship by Investment Unit. How to Obtain St Kitts and Nevis Citizenship Dominica and Grenada offer comparable programs with fund contributions starting around $200,000 and $235,000, respectively. Every Caribbean program adds due diligence fees, government processing charges, and legal costs on top of the headline number, which can add $15,000 to $30,000 or more depending on family size. Approvals often arrive within 60 to 90 days.
Vanuatu and Turkey
Vanuatu, a Pacific island nation, is one of the fastest CBI options anywhere. Applications can process in four to eight weeks, with contributions starting around $130,000 for a single applicant. The passport provides visa-free or visa-on-arrival access to roughly 100 countries.
Turkey grants citizenship for a real estate investment of at least $400,000, with a three-year hold requirement.6Invest in Türkiye. Acquiring Property and Citizenship Alternatives include a $500,000 bank deposit or fixed capital investment. The Turkish passport offers visa-free travel to over 110 countries and, importantly for Americans, access to the U.S. E-2 treaty investor visa that citizens of most CBI countries don’t get. Processing typically runs three to six months.
Malta Is No Longer an Option
Malta previously operated a high-end European CBI program requiring contributions of €600,000 to €750,000 plus property and a philanthropic donation.7EMD. Granting of Citizenship for Exceptional Services Regulations In April 2025, the European Court of Justice ruled that Malta’s scheme violated EU law by granting citizenship without a genuine link to the country.8Court of Justice of the European Union. Judgment of the Court in Case C-181/23 Commission v Malta The ruling effectively shut down the program in its existing form. Anyone considering a European investment route should verify current availability before committing funds.
Easiest If You Have the Ancestry
Ancestry-based citizenship is often the cheapest route because it involves no investment and, in most cases, no residency. The tradeoff is paperwork: you have to prove an unbroken chain of civil records going back decades, and each country has historical tripwires that disqualify applicants who look eligible on paper.
Ireland
Ireland offers a straightforward path through the Foreign Births Register for anyone with at least one grandparent born on the island of Ireland. You don’t need to live in Ireland, speak Irish, or pass a test. You submit civil documents proving the family connection, including your grandparent’s Irish birth certificate and your own.9Ireland.ie. Registering a Foreign Birth If your parent was already an Irish citizen when you were born, your citizenship may already exist and just needs to be documented.
One timing rule matters: to pass Irish citizenship to your own children born abroad, you must be registered on the Foreign Births Register before those children are born. Current processing runs about 12 months.9Ireland.ie. Registering a Foreign Birth
Poland
Poland follows blood-right principles with no formal generation limit, but your ancestor must have been a Polish citizen after 1920, when modern Polish citizenship law took effect. The main disqualifiers are ancestors who naturalized in another country, renounced Polish citizenship, or served in a foreign military without Polish government consent before 1951. Proving the chain often requires Polish civil records and historical documentation, which can be difficult given the country’s 20th-century upheavals. Polish claims typically involve a formal confirmation of citizenship proceeding rather than a purely administrative filing.
Italy After the 2025 Reform
Italy’s ancestry route was once one of the most generous in the world, with no generation limit as long as you could trace an unbroken line to an ancestor who was an Italian citizen on or after March 17, 1861.10Consolato Generale d’Italia Londra. Citizenship Iure Sanguinis – Previous Regulatory Framework Law No. 74, enacted in May 2025, now limits transmission to a maximum of two generations. Only your parent or grandparent’s Italian citizenship can pass to you through the standard administrative process.11Consolato Generale d’Italia Sydney. Citizenship by Descent – New Regulation
Applicants born abroad must also meet one of these conditions: they hold exclusively Italian citizenship with no other nationality; a parent or grandparent held exclusively Italian citizenship at the applicant’s birth or at their death; or an Italian parent lived in Italy for at least two consecutive years after acquiring citizenship and before the applicant’s birth.12Consolato Generale d’Italia Brisbane. Citizenship by Descent – New Rules Applications submitted before March 27, 2025 are grandfathered under the old rules.
Two historical pitfalls trip up many applicants. Women could not transmit Italian citizenship to children born before January 1, 1948, when the Italian Constitution took effect.11Consolato Generale d’Italia Sydney. Citizenship by Descent – New Regulation Lineages passing through a woman during that period require a court challenge rather than a standard filing. Separately, any ancestor who naturalized as a U.S. citizen before August 16, 1992 automatically lost Italian citizenship, breaking the chain for anyone born after that naturalization.13Consulate General of Italy in Los Angeles. Citizenship Office – FAQ
Check the Dual Citizenship Rules First
Confirm that your target country lets you keep the passport you already hold. Several dozen countries prohibit or restrict dual citizenship, and acquiring the new nationality could cost you the old one.
China, Japan, Singapore, and India maintain some of the strictest single-citizenship policies in Asia. China requires complete renunciation of any foreign citizenship, and Japan requires citizens to choose one nationality by age 22. In the Middle East, Saudi Arabia, the UAE, Kuwait, Qatar, and Oman all restrict dual nationality. European holdouts include Andorra, Monaco, and San Marino, which prohibit it entirely, while Austria, Spain, and the Netherlands allow it only in limited circumstances like birth-based claims or marriage.
The United States places no restrictions on dual citizenship. U.S. law does not require you to choose, and naturalizing elsewhere carries no risk to your American citizenship.14U.S. Department of State. Dual Nationality You are required to enter and leave the United States on your U.S. passport regardless of any other passports you hold.
A Second Passport Doesn’t End U.S. Tax Obligations
The United States taxes its citizens on worldwide income regardless of where they live. A new passport changes nothing about that. This catches people off guard, especially those who relocate abroad thinking they’ve left U.S. tax jurisdiction behind.
The foreign earned income exclusion lets you shield up to $132,900 of earned income from federal tax in 2026 if you meet the bona fide residence test or the physical presence test (330 days abroad in a 12-month period). A separate housing exclusion covers up to $39,870 in qualifying housing expenses, with the cap varying by location.15Internal Revenue Service. Figuring the Foreign Earned Income Exclusion Investment income, rental income, and capital gains aren’t covered.
Foreign account reporting is where penalties get serious. If the combined value of your foreign financial accounts exceeds $10,000 at any point during the year, you must file a Report of Foreign Bank and Financial Accounts (FBAR) with FinCEN.16Financial Crimes Enforcement Network. Report Foreign Bank and Financial Accounts Civil penalties for non-willful violations are adjusted annually for inflation, and willful violations can carry criminal penalties.17Internal Revenue Service. Report of Foreign Bank and Financial Accounts (FBAR) If your foreign financial assets exceed $200,000 on the last day of the tax year (or $300,000 at any point) while living abroad, you must also file Form 8938 under FATCA.18Internal Revenue Service. Do I Need to File Form 8938, Statement of Specified Foreign Financial Assets Missing either filing can trigger penalties that dwarf any tax you might have owed.
Documents and Timelines to Plan For
Every citizenship application requires authenticated personal documents. Birth certificates, marriage certificates, and police background checks are the baseline. For U.S. applicants, an FBI Identity History Summary serves as the standard criminal check, and most foreign governments want it issued within six months of your application.
Foreign documents typically need an Apostille, a certification established by the 1961 Hague Convention that verifies authenticity across member countries.19HCCH. Convention of 5 October 1961 Abolishing the Requirement of Legalisation for Foreign Public Documents State-issued documents get apostilled by the relevant Secretary of State’s office; federal documents like FBI checks go through the U.S. Department of State. Processing can run several weeks. Every document not in the target country’s language needs a certified translation, typically $25 to $50 per page. Ancestry claims often require the most paperwork because you’re reconstructing a multi-generational record chain, sometimes across three or four countries.
Investment programs add extensive financial due diligence. You’ll need to document the legal source of your funds through bank statements, tax returns, business ownership records, and sometimes letters from your financial institution. Caribbean programs charge separate due diligence fees ranging from $7,500 to $15,000 or more depending on family size, on top of the investment. Incomplete financial documentation is one of the most common reasons applications stall.
Timelines depend entirely on the route. Caribbean CBI approvals often arrive within 60 to 90 days. Vanuatu can process in four to eight weeks. Turkey typically takes three to six months. Argentina’s two-year residency is the minimum before you can apply, and the court process adds several more months. Ireland’s Foreign Births Register currently has a backlog of about 12 months.9Ireland.ie. Registering a Foreign Birth Italian consular cases have historically taken years due to appointment backlogs, and the 2025 reform may reshape wait times as demand shifts. Budget for the full range of time rather than the optimistic estimate, and don’t make irreversible life decisions based on a projected approval date.