Double taxation agreement for expats in Italy

This guide is for expats, retirees, freelancers, and cross-border workers in Italy who want a practical explanation of tax treaties, residency, and double tax relief. It reflects official sources checked in July 2026 and is for general information only, not tax, legal, or financial advice.

Key takeaways

• Check your Italian tax residency first. This usually determines whether Italy taxes only certain Italian-source income or looks at your worldwide income.
• Identify each type of income separately. Salary, pensions, rental income, dividends, freelance earnings, and capital gains can all be treated differently under a tax treaty.
• Check the relevant treaty article. Double tax treaties do not apply one blanket rule to all income; taxing rights are generally allocated according to the type and source of income.
• Understand how double taxation relief works. Depending on the treaty and circumstances, relief may involve a foreign tax credit, an exemption, or a reduced withholding rate.
• Do not assume treaty relief removes filing requirements. You may still need to file a tax return or report income in Italy, the other country, or both.
• Check social security separately. Income tax treaties generally do not determine where you pay INPS or foreign social security contributions; separate domestic or international coordination rules may apply.

What a double taxation agreement is

A double taxation agreement, also called a tax treaty, is an agreement between Italy and another country. Its purpose is to prevent or reduce the risk of the same income being taxed twice, but it does not usually mean that the income becomes tax-free.

In practice, tax treaties set out which country can tax different types of income and may limit the amount of tax that one country can charge. Where both countries can tax the same income, double taxation relief may be available, often through a foreign tax credit or an exemption.

A simple example helps. Assume you live in Italy, are tax resident there for the year, and receive a private pension from the UK relating to past employment. Under the UK–Italy tax treaty, this type of pension is generally taxable only in Italy if you are resident there for treaty purposes.

You still need to report the income correctly in Italy and may need to deal with any UK tax that has been withheld incorrectly.

How Italy’s double taxation agreements work

Cross-border tax questions are usually easier to work through if you check three things in order:

1. Whether you are a tax resident in Italy
2. What type of income you receive
3. What the relevant tax treaty says about that income.

This approach is more useful than trying to memorize treaty terminology.

How Italy decides tax residence

Italy starts with its domestic tax residence rules. If you are a tax resident in Italy, you are generally subject to Italian tax on your worldwide income, which is why understanding the wider tax system in Italy matters before you apply a tax treaty.

Italy generally uses the calendar year as its tax period and considers several tests when determining residence. Under current rules, these include:

• physical presence
• residence under the Italian Civil Code
• domicile, focusing on where your personal and family relationships primarily develop. Registration in Italy’s resident population registry for most of the tax period also creates a presumption of tax residence.

How to find the treaty and the article that matters

Italy’s treaty network is published by the Ministero dell’Economia e delle Finanze and linked from the Agenzia delle Entrate. Check the treaty between Italy and the other country involved rather than relying on a generic summary, because the wording, exceptions, and article numbering can vary between treaties.

1. Check that a tax treaty between Italy and the other country is currently in force.
2. Open the official treaty text rather than relying on a secondary summary.
3. Find the article covering your type of income, such as employment income, pensions, dividends, interest, royalties, rental income, or capital gains.
4. Check the treaty’s double taxation relief article as well, as this explains how double taxation should be relieved where both countries have taxing rights.

Who can use the agreement and which income it covers

An Italian double taxation agreement can matter for employees, retirees, freelancers, landlords, investors, and business owners with cross-border income. The key questions are whether you qualify as a resident covered by the relevant treaty and whether your income falls within its scope.

Common income types covered

Tax treaties do not treat all income in the same way. Employment income often depends on where the work is physically performed, while rental income is generally taxable in the country where the property is located.

Pensions, business or self-employment income, investment income, and capital gains have their own treaty rules.

The outcome also depends on whether the source country retains a right to tax the income and, if both countries can tax it, how double taxation is relieved.

For Italian residents, this may involve a foreign tax credit. Country summaries can be a useful starting point, but always check the relevant treaty text.

Income type	What often happens first	Where relief is usually dealt with
Employment income	Often where the work is performed, unless a short-stay exception applies	Usually in the residence country through treaty relief or a credit
Private pension	Often in the country of residence, but check the treaty text	Depends on the taxing rights given to each country
Government pension	Often special rules apply, sometimes favoring the paying state	Depends on treaty wording and nationality rules
Rental income	Usually where the property is located	Relief is often claimed in the residence country
Self-employment income	Treatment varies; taxation in the other country may depend on factors such as having a permanent establishment there	Depends on the relevant treaty and how taxing rights are allocated
Dividends and interest	Source country may keep limited taxing rights	Relief is often given by the residence country
Capital gains	Depends on the asset, especially real estate versus shares	Depends on how the treaty allocates taxing rights

When social security follows separate rules

Social security is a separate issue from income tax. A tax treaty may determine how salary, pensions, or other income is taxed, but social security contributions are generally governed by separate domestic rules, EU coordination rules, or bilateral social security agreements.

Italy has agreements with a number of non-EU countries as well as participating in European coordination arrangements.

• Check whether Italian INPS contributions are due separately from income tax.
• Check whether EU coordination rules or a bilateral social security agreement applies to your situation.
• If you are working temporarily across borders, check whether you need evidence of which country’s system applies, such as an A1 certificate within the relevant European framework or an equivalent certificate under a bilateral agreement.

How to claim relief or a foreign tax credit in Italy

In practice, double taxation may be relieved in different ways. You may be able to obtain treaty relief in the other country, for example through reduced withholding or a refund, or you may report the income in Italy and claim an eligible foreign tax credit.

The correct route depends on the treaty, the type of income, and the tax already paid.

Documents and forms to gather

Good records are essential when claiming double tax relief. Before you file, gather evidence showing your residence position, the type and amount of income received, and any foreign tax paid.

For an Italian foreign tax credit, it is particularly important to establish whether the foreign tax has become final and is no longer refundable.

You should gather:

• A tax residence certificate, where relevant
• Proof of foreign tax paid, especially final statements or assessments
• Statements from the foreign payer, such as pension, salary, or dividend records
• Details of the treaty article you are relying on
• Current Italian filing instructions for Modello 730 or Modello Redditi PF
• Your Italian tax ID, or codice fiscale, for Italian tax administration and reporting

Step by step to claim relief in Italy

Procedural details below reflect official sources checked in August 2026. Deadlines, forms, and filing requirements can change, so always check the current Agenzia delle Entrate instructions before submitting your returns.

Deadlines and filing routes can change, so always confirm the current Agenzia delle Entrate instructions before you submit anything.

If the other country uses a different tax year, do not leave the paperwork until the last minute. Italy generally taxes individuals by calendar year, so matching foreign income and tax payments to the correct Italian tax period can require extra work.

Treaty concepts and common mistakes

You do not need to become a tax treaty specialist to understand the basics. However, a few key concepts are important, because misunderstandings can lead to unnecessary tax, missed credits, or relief being claimed incorrectly.

Key treaty terms to understand

Treaty tie-breaker rules can determine your residence for treaty purposes when both countries treat you as resident under their domestic laws. Depending on the treaty, these rules may consider factors such as your permanent home, centre of personal and economic interests, habitual abode, and nationality.

If these tests do not resolve the issue, the competent authorities may need to determine residence by mutual agreement. This is why Italian domestic tax residence and treaty residence are related but not necessarily the same.

Other useful terms come up frequently:

• Taxing rights: which country is allowed to tax a specific item of income under the treaty.
• Withholding tax: tax taken off at source before you receive the payment.
• Permanent establishment: a sufficient business presence in another country that can give that country taxing rights over attributable business profits.
• Exemption: a method under which income that could otherwise be taxed is excluded from tax, although the precise treatment depends on the treaty and domestic rules.
• Foreign tax credit: a credit against Italian tax for qualifying foreign tax paid on income from abroad, generally subject to limits and other conditions.

Mistakes that lead to overpaying or double reporting

For an Italian foreign tax credit, timing and evidence matter. Under Italy’s general foreign tax credit rules, qualifying foreign tax generally needs to have been paid definitively. Tax that can still be refunded or changed may therefore require different treatment.

• Assuming a tax treaty removes the need to file a return in either country.
• Claiming an Italian foreign tax credit before the foreign tax meets the requirements for a credit.
• Confusing tax residence with visa, immigration, or municipal registration status.
• Overlooking Italian foreign asset reporting requirements, including Quadro W or Quadro RW where applicable.
• Assuming private and government pensions always receive the same treaty treatment.

When to get professional advice

Some cross-border tax questions can be relatively straightforward, while others are much more complex. If both countries treat you as a tax resident, you move during the year, or you have several types of income across borders, mistakes can affect more than one tax return and may be difficult to correct later.

A commercialista, which is an Italian chartered tax professional, is often the right first stop. If you need help finding one, Expatica’s accountants and tax advisors in Italy is a useful place to start.

Consider getting help if:

• Both countries treat you as a tax resident.
• You receive several types of income, such as salary, pension, rental, or investment income, across different countries.
• You run a business or freelance across borders.
• You are relying on special pension rules, preferential tax regimes, or treaty tie-breaker rules

Useful resources

(accessed 13 August 2026)

• Agenzia delle Entrate, Conventions for the avoidance of double taxation
• Ministero dell’Economia e delle Finanze, treaty list
• Agenzia delle Entrate, residence for tax purposes
• Agenzia delle Entrate, how and when to file a tax return
• IRS, Italy tax treaty documents