Italy rewrote its residency rules on 1 January 2024. Tax residency in Italy now attaches to 183 days of simple physical presence - counted so strictly that even a fraction of a day is a full day - alongside a new family-centred definition of domicile and a registration rule that is finally rebuttable. This guide explains the post-reform tests, who they catch, and how to keep a day count you can actually prove.
What changed on 1 January 2024
Legislative Decree 209/2023 rewrote Article 2 of Italy's income tax code (TUIR) with effect from 1 January 2024 - the first major overhaul of the individual residency rules in decades, with official guidance in the Agenzia delle Entrate's Circular 20/E of 4 November 2024. Three things changed at once:
- A brand-new objective physical-presence test was added, under which fractions of a day count as whole days.
- Domicile was redefined around your personal and family life rather than your business interests.
- Registration in the Anagrafe (the resident population register) was downgraded from conclusive proof of residency to a presumption you can rebut.
The tests have not changed again in 2025 or 2026 - this is the regime you are measured against today.
The 183-day threshold for Italian tax residency
You are an Italian tax resident if, for the greater part of the tax year - at least 183 days, or 184 in a leap year, not necessarily consecutive - you meet any one of these conditions:
- Residence: your habitual abode, in the civil-law sense, is in Italy.
- Domicile: the place where your personal and family relationships primarily develop is in Italy.
- Physical presence: you are physically in Italian territory, counting even fractions of a day.
On top of these, anyone registered in the Anagrafe for the greater part of the year is presumed resident unless they prove otherwise. Italy's tax year is the calendar year, and residency is all-or-nothing: meet a test and you are resident for the whole year, taxable on worldwide income under IRPEF, with foreign-asset reporting and the IVIE/IVAFE taxes on top. There is no general split-year relief - only the treaties with Switzerland and Germany allow a mid-year split.
Becoming resident is not automatically a disaster. The impatriate regime exempts 50 percent of qualifying work income (up to EUR 600,000 a year) for five years, and the flat tax for wealthy new residents replaces tax on foreign income for up to 15 years - raised by the 2026 Budget Law to EUR 300,000 a year for moves from 1 January 2026. Both regimes hinge on exactly when your residency starts, which brings everything back to the day count.
Physical presence: even part of a day counts
The physical-presence test is the reform's sharpest edge. It is purely objective: why you are in Italy is irrelevant. Holidays, family visits and remote work all count the same - Circular 20/E expressly covers people working from Italy in smart working for a foreign employer.
The counting is the strict "any part of a day" method. The tax authority's own example: land at 11:00 pm and that day counts in full, depart at 1:00 am and so does that one - one hour equals one day. Arrival days, departure days, a late-evening train from Nice, a morning of skiing across the border - each adds a whole day to your Italian total. Over a travel-heavy year those slivers add up to weeks, which is how people who "obviously" spent under half the year in Italy discover they crossed 183. Italy is unusual in writing the fraction-of-a-day rule explicitly into the statute.
Domicile and habitual abode after the reform
The two qualitative tests can make you resident on far fewer than 183 days of presence. Residence keeps its civil-code meaning: the place where you habitually live. Domicile is where the reform bites. Before 2024 it borrowed the civil-code "centre of business and interests", and courts argued for years over whether money or family mattered more. The new law settles it: domicile is now defined directly in the tax code as the place where your personal and family relationships primarily develop.
The practical consequence: if your spouse and children live in Italy while you commute to a job abroad, Italy can treat you as domiciled - and therefore resident - even if your own presence stays well under 183 days. Where that creates dual residency, the tie-breaker rules in the relevant double-tax treaty decide the winner, and a documented day count is key evidence in that fight.
The Anagrafe is now a rebuttable presumption
Before 2024, staying registered in the Anagrafe was conclusive: Italians who moved abroad but never deregistered (or never enrolled in AIRE, the register of residents abroad) were taxed as residents no matter where they actually lived. From 2024 the registration is only a presumption. If your life is genuinely elsewhere you can now rebut it - but the burden of proof is on you, so foreign day counts, a foreign home, school enrolments and travel evidence decide the outcome.
One trap survives: Italian citizens who deregister and move to a jurisdiction on Italy's privileged-tax-regime blacklist are still presumed resident unless they prove the contrary. The message of the reform is the same either way - registrations argue, but evidence wins.
Track your Italian days automatically on iPhone
A test where one hour equals one day is unforgiving of hand-kept spreadsheets. Tax Residency Tracker handles it automatically:
- Calendar Day counting mode mirrors Italy's any-part-of-a-day test, so a 40-minute border hop is recorded as the full day the Agenzia would count.
- Automatic GPS border detection creates a dated stay every time you cross into Italy, even when the app is closed - the short hops you would never think to log are exactly the ones it catches.
- Real-time countdown to 183 shows your Italian total and remaining days all year, alongside every other country you track.
- Planned-stay previews show whether a future trip pushes you over the Italian line before you book it.
- Threshold alerts warn you as you approach 183, while there is still time to change plans.
- Documents and CSV export attach boarding passes, receipts and scans to each stay and export a dated record - the evidence that rebuts the Anagrafe presumption or wins a treaty tie-breaker.
Everything is processed on your device and never uploaded, with optional iCloud sync through your own private account, so a complete record of your movements stays yours.
Frequently asked questions
Do arrival and departure days count toward Italy's 183 days?
Yes, both, and in full. Italy uses the any-part-of-a-day method: official guidance counts a day where you landed at 11:00 pm - one hour of presence - as a whole day.
I am still registered in the Anagrafe but live abroad. Am I an Italian tax resident?
You are presumed to be, but since 2024 you can rebut the presumption with evidence that your residence, domicile and physical presence were genuinely elsewhere. After a move to a blacklisted low-tax jurisdiction the bar for contrary proof is high.
Can I split the year if I move to or from Italy mid-year?
Generally no. Residency covers the whole calendar year once a test is met for the greater part of it; split-year treatment exists only under the treaties with Switzerland and Germany.
Does remote work from Italy count toward the 183 days?
Yes. The test looks only at where your body is, and Circular 20/E confirms it covers smart-working days in Italy, regardless of where your employer or clients are.
Next, see how the general 183-day rule works worldwide, compare Italy with the Spanish 183-day rule, learn how different countries count a day, or browse all tax-residency guides.