While dual citizenship offers benefits like travel freedom and increased opportunities, significant drawbacks often make it unappealing or impractical. Key reasons to avoid it include complex tax obligations (such as double taxation or multiple filings), mandatory military service in certain nations, restricted access to high-level security jobs, and potential legal or political conflicts regarding loyalty.
Disadvantages. Barriers to certain jobs: Being a dual citizen may disqualify you from certain jobs, including those in the government. Complicated process: Becoming a citizen may be easy in certain cases (like being born in one country), but in others, you may face hefty fees and long wait times.
Holding two nationalities can mean dealing with additional administrative and legal requirements, such as:
Challenges of Double Nationality
Legal Obligations: Dual nationality comes with responsibilities. People who hold dual citizenship must follow the laws of both countries. This can include military service or dealing with legal issues, especially if the laws in the two countries differ.
National loyalty: Some governments view dual citizenship as a challenge to undivided national loyalty. These nations often require individuals to renounce prior citizenships upon naturalization to prevent divided allegiance.
Knowing a customer's citizenship or dual citizenship can help banks assess risk, especially for international transactions.
The pros of becoming a dual citizen
There are various benefits once you obtain dual citizenship. Dual citizenship advantages include: Enhanced global mobility: A second citizenship means a second passport, which will open more hassle-free travel destinations, and make you a legal citizen.
With rising rents, a tough job market and pay cheques stretched to the limit, some young Britons are choosing to build their futures overseas.
Yes, dual citizens often have tax filing obligations in both countries, but you usually don't pay double the tax due to tax treaties and credits (like the Foreign Tax Credit), which prevent full double taxation by letting you subtract foreign taxes paid from your U.S. liability or exclude certain foreign income, though reporting is still required for worldwide income. The U.S. taxes citizens on worldwide income regardless of residence, while other countries typically tax residents on their income.
The U.S. government generally doesn't track dual citizenship automatically, but they can find out through various interactions like passport applications, border crossings (especially with Canada/Mexico), security clearance investigations, or if the other country shares data, though the U.S. doesn't actively share citizenship info with most countries. While dual nationality isn't prohibited, you're expected to obey laws in both countries, and holding dual citizenship might affect eligibility for federal jobs requiring high security clearances.
The new dual citizenship bill, officially called the Exclusive Citizenship Act of 2025, is a proposal that would ban dual citizenship for Americans and require individuals to choose one nationality. The bill is not law, and dual citizenship remains fully legal today.
Requirements for U.S. citizens holding dual nationality
You are not allowed to enter on your foreign passport based on U.S. law. U.S. citizens are not eligible for a U.S. visa. If your child is a citizen of the United States, they are not eligible for a U.S. visa.
Because of that, a dual citizen can vote, work, own property, and use public services across both countries.
Dual citizenship can have a significant impact on an individual's estate plan. For one thing, it can complicate the distribution of assets after death. If an individual holds citizenship in two countries, their estate may be subject to the laws of both countries.
Over 55% of Brits leaving the UK moved to Europe in the last year, which is no surprise, with Spain, France, Italy, Ireland and Germany being in the top 10 countries in which Brits have moved and mainland Europe is the closest destination by distance for emigrating Brits.
Economists and analysts at Cambridge Econometrics found that, by 2035, the UK is anticipated to have three million fewer jobs, 32% lower investment, 5% lower exports and 16% lower imports, than it would have had been. The report states that the UK will be £311bn worse off by 2035 due to leaving the EU.
By law, Immigration and Customs Enforcement (ICE) cannot detain or deport U.S. citizens. But the question of whether someone is a U.S. citizen can be complicated. This guide from the Florence Project will help you determine if you may claim to be a U.S. citizen, and if you can, how to prove it.
Generally, you should not enter and exit a country with different passports as it creates immigration discrepancies, but for dual citizens, the rule is to use the passport of the country you are entering/leaving for that specific border crossing (e.g., use your Italian passport to enter/leave Italy, your US passport to enter/leave the US). The key is always to show the passport of the country you are departing when you leave that country, and the passport of the country you are entering when you arrive, using both passports strategically for the smoothest travel.