Argentina’s labor modernization law, approved by Congress on February 27 and now awaiting presidential promulgation, shields foreign nationals who obtain citizenship by investment (CBI) from automatic tax residency. The Senate gave final legislative approval 42 to 28 with two abstentions; President Milei has 10 business days to sign the bill into law.
Buried within a sweeping bill primarily concerned with employment law and severance pay, the amendment targets Article 116 of the Income Tax Law (Ley de Impuesto a las Ganancias). It carves out a new category for foreigners who naturalize by “relevant investments” under Article 2 of Citizenship Law No. 346, the legal basis for Argentina’s forthcoming CBI program.
The Problem It Solves
Argentine tax law draws a hard line between residents and non-residents. Residents pay income tax on worldwide earnings; non-residents owe tax only on Argentine-source income.
Previously, Article 116, subsection (a) classified all Argentine nationals, native-born and naturalized alike, as tax residents. No qualifier distinguished someone who naturalizes after years of living in Argentina from someone who does so by investment without extended physical presence.
Martin Hecht, founder of MH Legal Hub, confirmed the risk was concrete, not theoretical. In the pre-reform law, he explained, “the moment a foreign person obtains Argentine citizenship by naturalization, regardless of the reason, they fall into section (a) and become an Argentine tax resident from day one, obligated to declare and pay tax on worldwide income.”
Without the reform, He said, CBI investors would have faced an absurd situation: the law would have labeled them tax residents by legal presumption despite meeting no real residency criterion.
To shed that status, an investor would have needed to formally initiate the tax residency loss procedure under Article 117, prove permanent residency in another country, and satisfy additional requirements from ARCA (Argentina’s tax authority, formerly AFIP).
He outlined the specific practical risks. ARCA could have demanded annual tax returns declaring worldwide income, and double taxation could have arisen if the investor’s home country also considers him a tax resident. Banks, international compliance departments, and similar entities would have faced legal uncertainty over the investor’s fiscal status.
How the New Rule Works
The amendment moves CBI-naturalized citizens from subsection (a), which captures all Argentine nationals, into subsection (b), where foreign nationals sit. Tax residency under subsection (b) depends on physical presence: 12 months in the country.
Hecht framed the reform as both clarifying and substantive. It reassures investors that citizenship alone will not trigger worldwide taxation, he said, but it also changes the practical outcome: CBI holders who do not become tax residents will owe income tax only on Argentine-source income. Without the new rule, obtaining citizenship would have triggered worldwide taxation automatically.
But this is not a tax exemption, Hecht stressed. Everyone, regardless of residency status, owes tax on Argentine-source income. The reform strips away only the worldwide component for investors who do not establish physical presence.
Two Readings of the 12-Month Rule
Genuine tension sits at the center of the provision, and Hecht identified two defensible interpretations. Which one prevails will determine whether the reform offers CBI investors a permanent shield from worldwide taxation or merely a 12-month grace period.
One reading, which he believes may reflect legislative intent, holds that the reform fully decouples CBI from tax residency.
An investor could hold an Argentine passport, spend real time in the country, and still pay tax only on Argentine-source income. Worldwide taxation would apply solely to those who held permanent residency before naturalizing.
A stricter technical reading reaches a different conclusion: crossing the 12-month physical presence threshold turns the investor into a full Argentine tax resident subject to worldwide income taxation, regardless of how he obtained citizenship. “Until ARCA issues a binding ruling or case law develops, I would treat that ambiguity as a live risk,” Hecht cautioned.
How the Count Works in Practice
For practitioners, the mechanics of the physical presence test matter as much as the policy. Hecht explained that CBI-naturalized persons fall under subsection (b), and the law treats them as foreign nationals for tax purposes.
Naturalization date plays no role. No clock starts when someone receives an Argentine passport; the only clock that matters counts days on Argentine soil.
Implementing Regulatory Decree 862/2019 adds an operational wrinkle, according to Hecht. Temporary absences do not interrupt the 12-month count unless a single absence exceeds 90 consecutive days, at which point the count resets entirely. Short trips abroad do not pause the clock.
Hecht expects serious CBI clients to gravitate toward a common structuring scenario: roughly eight months per year in Argentina with at least one departure exceeding 90 consecutive days, preventing the accumulation needed to trigger tax residency.
Whether 90 days of absence distributed across several short trips achieves the same result remains unclear; the statute suggests it should, but practice sometimes diverges.
One Express Exception
The reform carves out a single exclusion: Anyone who already held permanent residency in Argentina at the time of obtaining CBI remains a tax resident.
In Hecht’s words, the reform “provides no relief to someone who had already established physical residency in Argentina before naturalizing.” Only investors who arrive as foreign nationals, invest, and naturalize from that starting point stand to benefit.
When the Provision Takes Effect
Even after Milei signs the bill, the CBI tax provision may not activate immediately. Article 212 of the law stipulates that all tax modifications, along with the Fondo de Asistencia Laboral and the Regimen de Incentivo para Medianas Inversiones, take effect only “when the Ministry of Economy so determines, in order to meet fiscal balance targets.”
That clause hands Economy Minister Luis Caputo discretion over timing. No fixed calendar governs when the CBI tax carve-out becomes operative; the ministry could activate it promptly, delay it, or phase it in alongside other tax provisions. Investors and advisors should treat the provision as legislatively approved but not yet in force.
Domestic Reactions
Argentine tax specialists disagree on the provision’s merits.
Noelia Girardi, a manager at Buenos Aires firm Lisicki, Litvin and Abelovich, told Infobae the reform adds predictability and prevents naturalization by investment from automatically generating a broader tax burden. Martin Caranta, a tax partner at the same firm, told Infobae the provision struck him as odd and that its practical effect simply delays when CBI investors become subject to worldwide taxation.
That asymmetry is tangible. Native Argentines who spend eight months a year in-country and the rest abroad remain tax residents; CBI-naturalized citizens following the same pattern may not, depending on which reading of the 12-month rule prevails.
Once promulgated and activated by the Ministry of Economy, the tax carve-out would remove what practitioners widely view as the program’s single largest fiscal obstacle.
