The benefits of dual citizenship come down to one thing: two passports give you the legal right to live, work, study, own property, and vote in two countries without needing a visa, work permit, or residency card in either. The U.S. Supreme Court held in Afroyim v. Rusk that the government cannot strip your citizenship without your voluntary consent, so naturalizing elsewhere does not automatically cost you your American passport.1Justia Law. Afroyim v Rusk 387 US 253 (1967) The tradeoffs are real, though, especially the tax and reporting rules that apply to U.S. citizens no matter where they live.
Freedom to Travel and Live in Both Countries
Each passport plugs you into a different set of visa-waiver agreements, so you can enter your destination on whichever document creates less friction. Non-citizens applying for a U.S. visa typically pay between $185 and $315 depending on the category, and other countries charge comparable fees.2U.S. Department of State. Fees for Visa Services As a citizen, you skip the fee and the application.
Citizenship also carries a right of abode: the permanent, unconditional right to enter and stay in your country of nationality with no time limits.3GOV.UK. Prove You Have Right of Abode in the UK – Overview You never apply for a residency permit, and deportation applies only to noncitizens, so a country cannot legally expel its own.4USAGov. Deportation Process If either country tightens its immigration rules, your status is untouched.
One rule catches many dual nationals: U.S. law requires citizens to enter and leave the United States on a U.S. passport, and your other country may have the same rule at its borders.5U.S. Department of State. Dual Nationality Using your foreign passport for travel elsewhere is fine, so in practice you swap documents by destination.
Work and Property Without a Visa
Working legally normally requires citizenship or an employer-sponsored visa. Dual nationals skip sponsorship in both countries, which matters because sponsored visas are expensive. A standard H-1B petition in the U.S. runs thousands in filing fees, and a 2025 presidential proclamation added a $100,000 fee on new petitions. Hiring a citizen removes that cost entirely.
Dual nationals also bypass the labor certification process, where employers must show no qualified domestic worker is available before hiring a foreign national. That step can take months and adds thousands more in advertising and legal fees.
Property rules follow the same pattern. Many countries restrict foreign real estate ownership or tack on surcharges for foreign buyers. Parts of Australia impose 7% to 9% surcharges on foreign purchasers on top of standard transfer taxes, and citizens are exempt. Holding citizenship in two countries also lets you register a business as a domestic entity in each, opening the door to contracts and licenses reserved for local firms.
Domestic Tuition, Financial Aid, and Public Health Care
Higher education is often where dual citizenship saves the most year over year. International students at many universities pay several times what domestic students pay; at U.S. public universities, the gap between in-state and international rates often exceeds $20,000 a year. As a citizen you qualify for domestic tuition and for government financial aid, grants, and subsidized student loans in both countries.
Watch the fine print on eligibility. Some countries tie domestic tuition to citizenship alone; others also require you to have lived there for a set period first. England, for instance, requires three years of ordinary residence before the start of a course to qualify for home fee status, even for citizens. Check the specific rules in your second country before you assume the passport alone gets you the domestic rate.
Health care can work the same way. If one of your countries offers universal or subsidized public coverage, citizenship makes you eligible to enroll on terms unavailable to non-citizens. Retirees who split time between countries often use this to their advantage, choosing where to receive care based on cost and quality for a specific condition.
Two Embassies When You Travelh2>
In a third country, dual citizenship gives you access to two consular networks. If you face legal trouble, a natural disaster, or civil unrest, you can approach whichever embassy is better positioned to help. A larger diplomatic network may offer faster evacuation; a smaller one may have stronger local relationships in certain regions.
There is a limit worth knowing. Under widely recognized principles of international law, when you are physically present in one of your countries of nationality, that country treats you as exclusively its citizen and can refuse to let your other country’s consulate intervene. The U.S. State Department will still try to assist dual nationals abroad but acknowledges its ability to help may be limited when you are in the country of your other nationality.6U.S. Department of State. 7 FAM 080 Dual Nationality In a third country where you hold neither nationality, both embassies can help.
Voting and Running for Office
Citizenship is the gateway to voting, running for office, and jury service. As a dual national you can participate in both countries’ democratic processes, provided each allows citizens abroad to vote. Many countries do permit absentee voting, though registration deadlines and residency conditions vary and you have to track them separately.
Elected office is almost always limited to citizens, and dual nationals can run in either country with one prominent exception: the U.S. presidency requires a natural-born citizen, so naturalized Americans are ineligible regardless of how long they have lived in the country.7Library of Congress. Qualifications for the Presidency Most other federal and state offices are open to any citizen. Jury duty and similar civic obligations come with the rights.
The Tax Catch for U.S. Citizens
This is where dual citizenship gets genuinely complicated. The United States taxes citizens on worldwide income regardless of where they live.8Internal Revenue Service. US Citizens and Resident Aliens Abroad Living and working in your second country does not release you from filing a U.S. return every year and reporting all income, even income you already paid tax on abroad. Most other countries tax based on residency, so this obligation is largely a U.S. quirk.
Two mechanisms reduce double taxation. The foreign earned income exclusion lets qualifying Americans abroad exclude up to $132,900 in earned income for tax year 2026.9Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 The foreign tax credit offsets U.S. tax by amounts already paid to another country. The U.S. also has income tax treaties with dozens of countries that can reduce or eliminate double taxation on certain income, though most contain a saving clause that preserves Washington’s right to tax its own citizens.10Internal Revenue Service. United States Income Tax Treaties – A to Z
On top of income tax, there are two separate foreign account reports:
- FBAR (FinCEN Form 114) is required when your foreign financial accounts together exceed $10,000 at any point during the year. It is due April 15 with an automatic extension to October 15. Penalties for non-willful failure to file can reach $10,000 per violation, and willful violations can run up to 50% of the highest account balance.11Internal Revenue Service. Report of Foreign Bank and Financial Accounts (FBAR)
- FATCA (Form 8938) applies to U.S. citizens abroad with foreign financial assets above $200,000 on the last day of the tax year or $300,000 at any point during the year for individual filers. Joint filers use $400,000 and $600,000 thresholds.12Internal Revenue Service. Do I Need to File Form 8938, Statement of Specified Foreign Financial Assets
These reports apply to ordinary bank accounts and retirement savings in your second country. You can incur steep penalties even when no additional tax is owed. If you hold dual citizenship and live abroad, working with a cross-border tax professional is not optional.
What Can Go Wrong
Security Clearances
Dual citizenship does not automatically disqualify you from a U.S. security clearance, but it does trigger extra scrutiny. Adjudicators look at whether ties abroad raise concerns about divided loyalty. Using a foreign passport, voting in foreign elections, performing military service for another country, or accepting foreign government benefits can flag your file.13U.S. Department of State. Dual Citizenship – Security Clearance Implications Reviews use a whole-person concept, and a willingness to renounce foreign citizenship can help. The standard is strict: doubt about unquestioned allegiance to the United States is resolved against the applicant.
Military Service Abroad
Some countries conscript their citizens, and dual citizenship does not exempt you. If your second country has mandatory service, you may be obligated when you reach a certain age, especially if you visit or reside there. On the U.S. side, compulsory foreign service does not typically endanger your American citizenship.14U.S. Department of State. Loss of US Nationality and Service in the Armed Forces of a Foreign State Voluntary foreign service becomes a problem only if those forces are engaged in hostilities against the U.S., or if you serve as a commissioned or non-commissioned officer with the intent to give up U.S. nationality.
Losing U.S. Citizenship
Losing U.S. nationality requires two things: a voluntary expatriating act and the intent to relinquish citizenship.15Office of the Law Revision Counsel. 8 USC 1481 – Loss of Nationality by Native-Born or Naturalized Citizen Expatriating acts include naturalizing abroad, swearing allegiance to a foreign government, serving as an officer in foreign armed forces, taking a foreign government position, formally renouncing at a U.S. embassy, and committing treason. The intent requirement is the shield: naturalizing elsewhere without meaning to give up your U.S. passport is not enough on its own.
The Price of Renouncing
If you do decide to give up U.S. citizenship, the State Department currently charges $2,350 to process the renunciation. Wealthier renouncers may also owe an exit tax. If your average annual net income tax over the previous five years exceeds roughly $206,000 (adjusted for inflation) or your net worth is $2 million or more, you are a covered expatriate and owe tax on the unrealized gains in your worldwide assets as if you had sold everything the day before renouncing.16Internal Revenue Service. Expatriation Tax
Countries That Do Not Allow It
Every benefit above assumes both countries recognize dual nationality. Some, including Japan and China, generally require you to give up your prior citizenship when you naturalize. Others prohibit it on paper but rarely enforce the rule. Before pursuing a second nationality, confirm neither country will force you to choose. Trading one citizenship for another defeats most of the point.