Living in Italy does not take you off the IRS's books. The US-Italy tax treaty divides taxing rights between the two countries, but its saving clause lets Washington keep taxing its citizens, so every American in Italy files in both places every year. The protection that works comes from a toolkit: the foreign tax credit, which usually does the heavy lifting because Italian rates reach 43%, the foreign earned income exclusion; the few treaty articles that survive the saving clause; the Totalization Agreement for social security, and Italy's own credit for foreign tax. Genuine double tax is narrow and tends to hide in US-source dividends, Italian special regimes, foreign funds, Roth IRAs and asset reporting, which is where most of the planning advice in this guide sits.

Key Takeaways

• Does the treaty cancel your US return? No. The saving clause preserves US tax on citizens, so you file Form 1040 every year and report worldwide income.
• What actually prevents double tax? Four core tools: the foreign tax credit, the FEIE, the treaty articles that survive the saving clause and the Totalization Agreement. Italy's own foreign tax credit and a few filing elections support them.
• Which tool leads in Italy? Usually the credit. Italian income tax runs up to 43% before local surtaxes, so it normally exceeds the US tax on the same income.
• Is there a timing mismatch, as in the UK? No. Both countries tax on the calendar year, so Italian tax lands on the same US return.
• Where can double tax survive? Mainly on US-source dividends, income under Italy's special regimes, foreign funds and the Roth IRA.
• Is the income tax treaty the only treaty? No. A separate 1955 treaty covers estate and inheritance tax, and a social security agreement signed in 1973 and in force since 1978 covers social contributions.

Most Americans arrive in Italy preoccupied with a visa, an apartment and a codice fiscale, and only later realize that their tax relationship with Washington never paused. Italy taxes you because you live there. The US taxes you because you hold the passport. The US-Italy tax treaty is the document meant to referee that overlap, and it does, but not in the way most people expect: for a US citizen it mostly decides who gives credit to whom, not who is excused. This guide explains what the treaty really does, which tools keep you from paying twice, where double tax still slips through, and what to decide before you move. It is updated for 2026.

Do Americans Living in Italy Pay Tax in Both Countries?

Yes, you file in both countries, and in most cases the overlap is relieved rather than doubled. The two systems start from different tests. Italy treats you as a resident if, for most of the year (183 days, or 184 in a leap year), you meet any one of four conditions: you are registered in the municipal population register, your domicile is in Italy, your habitual residence is in Italy, or you are physically present there. The US ignores where you live and taxes you as a citizen.

That is why taxes for US citizens living in Italy come in two layers. An Italian tax resident American files an Italian return on worldwide income and also files a US Form 1040 every year they meet the US filing threshold. Italy usually collects first, because it is the country where you live and work. The US then gives relief for the Italian tax already paid.

The pattern is the same in nearly every row. One country taxes first, and the other steps back by crediting what you paid, provided you file to claim it.

US-Italy Tax Decision Table: Which Rules Apply to You? 

Your best starting point depends on how you earn and hold your money. Find your situation below to see what Italy and the US each do, which tool usually leads and the main thing to watch. Each row is explained in detail later in this guide. 

What the US-Italy Tax Treaty Covers for American Expats 

The US-Italy income tax treaty is the 1999 Convention and Protocol, signed in 1999 and in force since 2009. It replaced a 1984 convention, and guides that still describe the 1984 text are out of date. It is the document the IRS and Italy's tax agency use to coordinate tax on salaries, pensions, dividends, interest and gains, and the US-Italy double taxation treaty requires relief where both countries claim the same income. For an Italian resident with US income, that is usually enough. For a US citizen, it comes with a built-in limit.

The Saving Clause

The saving clause in Article 1 lets the US tax its citizens and residents as if the treaty had never come into effect. In plain terms, most treaty benefits that would lower US tax for an Italian resident are switched off for a US citizen. A provision that says income is "taxable only" in Italy does not, by itself, stop the IRS from taxing a US citizen on it.

The saving clause comes with a short list of exceptions. These are the few places where the treaty still protects a US citizen, and each one has its own conditions, explained below. The ones that matter most to Americans in Italy are: 

• Relief from double taxation (Article 23). This is the article that requires the credit and, in some cases, lets Italian tax paid on US-source income count toward the US credit. In practice, this is why the foreign tax credit works at all. The US keeps its right to tax you, but it still has to give credit for the Italian tax you pay, and Italy gives credit for US tax in return. Article 23 also has special re-sourcing rules for certain US-source income, such as dividends, which is why that income needs extra care. 

• Certain pension provisions (Article 18). These cover items such as the treatment of cross-border pension contributions. Paragraphs 5 and 6 of Article 18 deal with how one country treats contributions to a pension plan in the other. They mostly matter to people who have retirement plans in both countries. The rules are detailed, so check the specific plan before relying on them. 

• Social Security payments (Article 18). The treaty can make US Social Security taxable only in the country of residence, but the exception has nationality conditions, so a US citizen who is not also an Italian national should not assume it applies without checking. In practice, the exception is built for someone who lives in Italy and is also an Italian national, including a dual US-Italian citizen. If you are a US citizen only, the saving clause still lets the US tax your benefits. 

• Government service, student and teacher provisions. These have citizenship and immigration-status limits that rule many Americans out. These benefits only apply to people who are neither citizens of nor immigrants in the country that is taxing them. For the US, that rules out citizens and green card holders, so most Americans in Italy cannot use them. 

So the US-Italy tax treaty for Americans is narrower than it looks. It sets out how credits work, protects some pension income and gives you a way to resolve disputes. It does not remove US tax on your salary, your rent or your investments. For the wider picture of how treaties work, see NSKT Global's guide to US tax treaties for expats. 

How US-Italy Tax Treaty Residency Rules Work 

If both countries treat you as a resident, Article 4 breaks the tie in a fixed order: your permanent home, then your centre of vital interests, then your habitual abode, then your nationality, and finally agreement between the two tax authorities. The test stops at the first step that gives an answer. A special rule in the protocol means Italy treats a US citizen or green card holder as a US resident for treaty purposes only if they have a substantial presence, a permanent home or a habitual abode in the US. For a US citizen, the tie-breaker never switches off the US return. For a green card holder who claims Italian treaty residence, it can create separate US status and disclosure questions, so get advice before you take that position.

How the US-Italy Tax Treaty Treats Different Types of Income 

How Americans in Italy Can Avoid Double Taxation: 4 Key Strategies 

There is no single form that fixes double taxation between Italy and the US. Four core tools do most of the work, and a handful of supporting tools, covered after them, close the remaining gaps. The US-Italy tax treaty is one of the four, but it works alongside three tools from US law.

Way 1: Foreign Tax Credit in Italy: How Americans Can Claim Relief tax Credit

The foreign tax credit is the main tool for most Americans in Italy. You claim a dollar-for-dollar credit against US income tax for Italian income tax paid on the same income. Here is how the foreign tax credit works in Italy in practice: Italy's national income tax (IRPEF) runs at 23% on income up to €28,000, 33% from €28,000 to €50,000 and 43% above €50,000 for 2026, and regional and municipal surtaxes add roughly 1.23% to 3.33% and up to 0.9% on top. Many US filers fall into the 22% or 24% brackets, so on a typical Italian salary the Italian tax is higher than the US tax on the same income. The credit usually wipes out the US income tax and leaves unused credit, which you can carry back one year or forward ten.

Illustration: a US citizen earns €60,000 in Italy. National income tax on that amount is about €18,000 (€6,440 on the first €28,000, €7,260 on the next €22,000 and €4,300 on the last €10,000), before deductions and local surtaxes. That is more than the US tax on the same income, so the credit would normally reduce the US income tax to zero, with unused credit carried forward.

A few mechanics decide whether the credit works properly:

• Report Italian tax on the right form. You claim the credit on Form 1116 for Italy, using a separate form for each income category. Salary goes in the general category, while interest and dividends go in the passive category, and credits in one category cannot offset US tax in the other.
• Only income tax counts. Italian social contributions to INPS, which run at roughly 9% of an employee's gross salary, are not creditable income taxes. They are handled by the Totalization Agreement instead.
• Convert euros consistently. Report Italian income and tax in US dollars, using the IRS yearly average rate for income earned evenly through the year and the rate on the payment date for one-off items, and use the same method each year.
• The credit follows the same tax year. Italy and the US both tax on the calendar year, so Italian tax for a year lands on the same US return. The timing problem Americans in the UK face does not arise in Italy.

For how the credit is calculated and how unused credits carry forward, see NSKT Global's guide to the foreign tax credit.

Foreign Earned Income Exclusion for Americans Living in Italy 

The foreign earned income exclusion in Italy lets you exclude up to $132,900 of foreign earned income for 2026 from US income tax on Form 2555, if you pass either the bona fide residence test, the natural fit for most people who move to Italy, or the 330-day physical presence test. A related foreign housing exclusion can cover qualifying housing costs above a base amount, up to a cap that varies by city, which can matter in expensive places such as Milan.

The exclusion rarely beats the credit in Italy, and the reasons go beyond tax rates:

• It only reaches earned income. Rent, interest, dividends and gains stay fully taxable in the US.
• It can cost you other benefits. Families who claim it generally lose the refundable part of the Child Tax Credit, and excluded income does not count as compensation for IRA contributions.
• It is hard to undo. After you revoke it, you generally cannot claim it again for five years without IRS approval.
• It starves the credit. Italian tax paid on excluded income cannot also be credited, so combining the two tools takes careful allocation.

It can still make sense for someone earning well under the cap in a year with little Italian tax, such as a part-year after a mid-year move. For more, see NSKT Global's guide to the foreign earned income exclusion.

Way 3: Treaty Relief That Survives the Saving Clause

The relief that survives the saving clause matters most for pensions and retirement income, which is where the US-Italy tax treaty does the most for US citizens. The US-Italy tax treaty pension rules in Article 18 allocate taxing rights over pensions, annuities and Social Security, but for a US citizen the saving clause means the US can still tax pension income, and the credit does the real work.

• US Social Security. The treaty can make Social Security payments taxable only in the country of residence, but the exception depends on your nationality. If you are a US citizen only, confirm your position before assuming the IRS will leave it alone.
• Traditional 401(k) and IRA withdrawals. Generally taxed by both countries, with credits on each side. Plan the order and timing of large withdrawals.
• Roth IRA withdrawals. Qualified withdrawals are tax-free in the US, but Italy's tax agency has taken a different view of whether they count as pensions, so do not assume they are tax-free in Italy. This is an area where advice before you draw matters.
• Italian pensions. Taxed in Italy as residence country and in the US as worldwide income, with a credit for the Italian tax.

For more on retirement accounts abroad, see NSKT Global's guide to retirement planning for expats.

Way 4: The Totalization Agreement

Italian and US social security sit outside the US-Italy tax treaty. The Italy social security treaty, formally a Totalization Agreement, was the first one the US signed, and it has been in force since 1978. It assigns your earnings to one system so you do not pay both, and it lets you combine credits from both countries toward a benefit.

• Employees hired locally in Italy generally pay into Italy's INPS only.
• Employees sent by a US employer for up to five years can generally stay in US Social Security with a certificate of coverage, and are then exempt from Italy's system.
• Self-employed people are covered by nationality-based rules that differ from most other agreements. The SSA's guidance assigns US coverage to a self-employed US national working in both countries, but the case of an American working only in Italy is not spelled out clearly, so get a certificate of coverage before you assume either answer.
• Combining credits. If you split a career between the two countries, you can add Italian credits to your US record to reach the benefit threshold, which can help if you would fall short in each country alone.

Without the right certificate, both countries can charge you. For the full rules, see NSKT Global's guide to totalization agreements and double Social Security tax.

Supporting Tools Beyond the Four Main Ways

Four is not a ceiling. These supporting tools sit alongside the main ones and often decide whether the main ones work.

• Italy's own credit for foreign tax. Relief also flows in the other direction. Under Article 165 of the Italian income tax code, a resident can credit foreign tax paid on a final basis against Italian tax on the same income, up to the share of Italian tax that income represents, calculated country by country. Two conditions bite: the foreign income must be declared on your Italian return, or the credit is lost, and the foreign tax must be paid definitively, generally before you file. Income taxed under a flat substitute tax or final withholding can fall outside the rule, which is part of why US-source dividends are the hard case.
• The tie-breaker and the mutual agreement procedure. If both countries claim you as a resident, the treaty's Article 4 decides which one wins. If you still end up taxed twice, you can ask the two tax authorities to resolve it between themselves. The tie-breaker works through a fixed order of tests and stops at the first one that gives an answer, as explained in the residency section above. It decides treaty residence only, so a US citizen still files in the US. The mutual agreement procedure (Article 25) is the fallback when you are taxed in a way the treaty does not allow. You ask the US competent authority, which sits within the IRS Large Business and International Division, to work the case out with Italy’s tax authorities. Ask as soon as you are denied treaty benefits or see double taxation coming, and protect your rights in the meantime by filing a timely protective refund claim in the US and meeting Italy’s own appeal deadlines. 
• Form 8833. Some treaty positions must be disclosed on Form 8833 with your US return, and skipping the form can bring a penalty.
• Carrying credits forward. Unused US credits carry back one year or forward ten, so a year of excess credit is not wasted if you track it by income category.
• Choosing where your income comes from. Where you hold income-producing assets, and which Italian regime you use, is often decided before you arrive. See the planning checklist below.
• Consistent numbers. One exchange-rate method and a single list of accounts for the US and Italian returns prevent mismatches that trigger notices.

Which Tool Fits Your Situation? A Quick Guide

Where Real Double Taxation Still Happens

Most Americans in Italy are not taxed twice on salary or pensions, because the credit cancels the US side. Genuine double tax is narrower, and it tends to sit in a few places.

One point surprises many new residents. Your US brokerage account, bank accounts and any US property are foreign assets from Italy's point of view, so they go on the RW section of your Italian return, and they can attract Italian wealth taxes (IVAFE on foreign financial assets and IVIE on foreign real estate). Those taxes are not income taxes, so they generally do not earn a US foreign tax credit.

The Italian Side: Rules, Forms and Filing

The US side is only half of American expat taxes in Italy, and the US-Italy tax treaty does not change the Italian rules below. A few Italian rules shape how much tax there is to credit.

• Italy taxes residents on worldwide income. Non-residents are generally taxed only on Italian-source income.
• Investment income is taxed at flat rates. Italy usually taxes interest, dividends and gains on listed securities at 26%, and certain government bonds at a lower rate.
• Two possible returns. Employees and pensioners often use the simplified Modello 730, while others use the full Modello Redditi PF.
• Foreign assets are reported separately. The RW section lists foreign accounts and assets, including your US ones.
• The tax year is the calendar year. This matches the US year, so Italian figures slot into your US return, although Italian returns fall due later than the US April deadline.

Italy's Special Tax Regimes and What They Mean for Your US Return

Italy has several regimes designed to attract new residents. They can lower the Italian bill, but the US-Italy tax treaty does not shield you from their effect on your US return. Each one changes the US analysis, because less Italian tax means less credit to offset US tax.

Earlier arrivals keep the flat-tax amounts that applied when they moved, which were lower. The regimes cannot generally be combined. The key point is that a lower Italian bill does not mean a lower total bill for an American. Get both countries' advice before you opt in.

Investments, Funds and US Retirement Accounts in Italy

The US-Italy tax treaty says little about funds, so these points come from US and Italian domestic rules.

• Italian and European funds. Most funds based outside the US, including Italian and other European funds, are passive foreign investment companies (PFICs) for US purposes. They bring Form 8621 and a punitive default tax on gains. Many Americans in Italy hold individual shares or US-domiciled funds instead.
• US funds held by an Italian resident. The problem can run both ways. Italy has its own rules for how funds are classified and taxed, so check the Italian treatment of your US ETFs before you move.
• Dividends and gains. Italian tax at 26% is usually higher than US long-term rates, so the credit normally covers the US tax.
• The 3.8% Net Investment Income Tax. The IRS's position is that the foreign tax credit cannot offset it, so higher earners with investment income can owe it even when income tax is zero.
• Selling a home in Italy. Italy has its own rules for gains on a main home, and the US excludes up to $250,000, or $500,000 for married couples filing jointly. Currency movements can also create a US gain on a euro mortgage, even when the house made no real profit in euros.

Estate and Inheritance Tax: The Separate 1955 Treaty

The income tax treaty does not cover death taxes. A separate 1955 convention, in force since 1956, covers the US federal estate tax and Italian estate and inheritance taxes. It is a death-tax treaty, not a gift-tax treaty, and it coordinates the two systems through domicile, nationality and its own rules for where assets are located. It does not make a cross-border estate tax-free.

Three points matter for Americans in Italy:

• Both systems can reach you. The US taxes citizens on their worldwide assets, with a federal exemption of $15 million per person for 2026. Italy generally taxes the worldwide estate of someone resident there.
• Italian rates depend on the relationship. Reported 2026 rates are 4% for a spouse or direct descendants after a €1 million exemption per beneficiary, 6% for siblings after a €100,000 exemption, 6% for other relatives up to the fourth degree, and 8% for everyone else.
• Italian succession law can override your will. Italy's forced heirship rules can apply to Italian real estate unless your will includes a choice-of-law clause under the EU succession regulation.

For the US side, see NSKT Global's guide to US expat estate planning.

Before You Move to Italy: A Planning Checklist

Many of the best options close once you become a resident.

1. Decide on any special regime first. The new-resident flat tax generally requires that you were not Italian tax resident in at least nine of the previous ten years, and the other regimes have their own conditions. Model each against your US return before you commit.
2. Review where your income-producing assets sit. US-source dividends are the hardest case for double tax, so holding income assets outside the US can let the credit flow more cleanly.
3. Check your funds. Non-US funds, including Italian and European ones, are usually PFICs for US purposes, so look at what you hold or plan to buy.
4. Confirm your Social Security position. If a US employer is sending you, request a certificate of coverage. If you are self-employed or a dual national, get your position confirmed in writing.
5. Cut ties with your US state if you do not plan to return, so it cannot keep taxing you.
6. Review Roth and other retirement accounts before you draw from them.
7. Update your will. Add a choice-of-law clause for Italian assets and consider both countries' death taxes.
8. Build one list of accounts. The FBAR, Form 8938 and Italy's RW section draw on the same accounts, so keep balances and exchange rates consistent.

FBAR and FATCA: Reporting Your Italian Accounts

US taxes for Americans living in Italy also involve reporting your accounts, even when no tax is due.

• FBAR (FinCEN Form 114). Due if your non-US accounts together pass $10,000 at any point in the year. This includes current accounts, savings, brokerage accounts and many pension accounts.
• Form 8938 (FATCA). For filers living abroad, the threshold starts at $200,000 at year-end or $300,000 at any time for single filers, and is double that for married couples filing jointly.

You will usually report the same accounts to Italy on the RW section, so keep one consistent list of accounts and balances for both returns. If you have fallen behind, the Streamlined Filing Compliance Procedures may let you catch up without penalties. See NSKT Global's guide to the Streamlined Filing Compliance Procedures.

US and Italian Tax Deadlines for American Expats 

Because Italy and the US both use the calendar year, you can usually finish your Italian figures before filing in the US. Italian filing dates and payment schedules change from year to year, so confirm them with an Italian adviser before you rely on them.

Common US-Italy Tax Issues for American Expats 

These cases come up repeatedly once the basics are in place.

• You are a dual US-Italian citizen. Holding an Italian passport does not change your US filing duty. It can, however, change the Social Security treaty analysis, so mention it to your adviser.
• Your spouse is not a US person. You can file separately or elect to treat your spouse as a US resident and file jointly. A joint return can lower your US tax, but it pulls your spouse's worldwide income and accounts into the US system.
• A US employer posted you to Italy. With a certificate of coverage, you can generally stay in US Social Security for up to five years and avoid Italian contributions, after which you move into the Italian system.
• Your first or last year in Italy. Italy generally does not split the tax year for people moving from the US, so becoming resident can bring the whole year's worldwide income into Italian tax, even if you arrived late in the year. Plan the timing of your move, bonuses and share sales around this.
• You still have ties to a US state. Some states do not follow the federal foreign tax credit or the treaty. If you have not cut ties with your former state, it may tax your Italian income with little or no relief.
• You own an Italian company or a partita IVA business. A company you control may need Form 5471, and its profits can fall under US anti-deferral rules. A sole proprietor in Italy also faces self-employment tax questions covered by the Totalization Agreement.
• You inherit property in Italy. Italy and the US tax inheritances under separate rules, so plan wills and gifts with both countries in mind. The estate section above explains the 1955 treaty.
• You plan to move back to the US. Leaving Italy can end any special regime, change how your pension is taxed and affect Italian reporting duties. Plan the year you leave, not after it.

For the visa, residency and citizenship side of the move, see NSKT Global's guide to moving to Italy from the US.

How NSKT Global Can Help

The US-Italy tax treaty gets the attention, but your actual tax bill is shaped by the choices around it: which Italian regime you use, where your assets sit, how you draw a pension, and whether both countries' forms tell the same story. Those choices are far cheaper to make before a return is filed than after a notice arrives.

NSKT Global's expat tax team works with Americans across Italy, from new arrivals weighing a special regime to long-term residents planning retirement and estates. We read your US and Italian position together, rather than treating them as two separate filings. We can help you:

• prepare your US return with the foreign tax credit, the FEIE or both, and choose the approach that costs the least overall
• model Italian special regimes against your US tax before you opt in
• review Italian funds, pensions and retirement accounts for PFIC, Form 8621 and Form 8833 issues
• confirm how the Totalization Agreement and the pension provisions of the treaty apply to you
• plan the year you arrive in or leave Italy, including share sales, bonuses and pension withdrawals
• file your FBAR and Form 8938, and bring past years up to date through the Streamlined procedures

If you are still deciding whether to move, or already unsure whether last year's two returns line up, talk to us before the next filing deadline. A short review now is usually cheaper than a correction later.

People Also Ask

Q. Does the US-Italy tax treaty stop double taxation for Americans?

Not on its own. The US-Italy tax treaty for expats is limited by the saving clause, so the main relief comes from the foreign tax credit and the FEIE, with the treaty adding protection for some pension and social security income.

Q. What is the saving clause in the US-Italy tax treaty?

It is in Article 1. It lets the US tax its citizens as if the treaty did not exist, except for specific exceptions such as the double tax relief article and certain pension and social security provisions.

Q. Is there more than one US-Italy tax treaty?

Yes. The 1999 Convention and Protocol covers income tax, a 1955 convention covers estate and inheritance tax, and the Totalization Agreement, in force since 1978, covers social security.

Q. Does Italy give a credit for US tax?

Yes. Italian residents can credit foreign tax paid on a final basis against Italian tax on the same income, but the foreign income must be declared on the Italian return. Income taxed under a flat substitute tax or final withholding can fall outside the rule.

Q. Why can US-source dividends still be taxed twice?

Italy taxes the dividend at 26%, while the US keeps its 15% treaty slice as the source country before crediting Italian tax, so a small amount can stay uncredited. Holding income assets outside the US before you move can ease the problem.

Q. Do I have to file a US tax return if I live in Italy?

Yes, if your income is above the US filing threshold. US citizens file every year wherever they live.

Q. Is the foreign tax credit or the FEIE better in Italy?

Usually the foreign tax credit, because Italian tax rates tend to be higher than US rates. The credit also covers rent and investment income and keeps the refundable Child Tax Credit available.

Q. Is US Social Security taxed in Italy?

It can be. The treaty can make US Social Security taxable only in the country of residence, but the exception has nationality conditions, so check your position before relying on it.

Q. Is my Roth IRA tax-free in Italy?

Not automatically. Qualified withdrawals are tax-free in the US, but Italy's tax agency has taken a different view of whether they count as pensions. Get advice before you draw.

Q. Do I pay Italian social security and US Social Security?

Usually not both. The US-Italy Totalization Agreement assigns you to one system, and a certificate of coverage proves which one.

Q. Does Italy's flat tax or Impatriati regime help Americans?

It can lower the Italian bill, but because the US taxes the same income, less Italian tax means less credit and more possible US tax. Model both countries before you opt in.

Q. Do I pay tax twice when I sell shares in Italy?

Usually not on the same gain. Italy's 26% rate is generally higher than US long-term rates, so the credit normally covers the US tax.