The Portuguese government faces mounting pressure to overhaul its taxation system as Nobel Prize–winning economist Abhijit Banerjee cautioned that undertaxing the ultra-wealthy while cutting social programmes is "unsustainable" and fueling a widening inequality gap worldwide.
Speaking to Lusa news agency in June 2026, Banerjee—who shared the 2019 economics Nobel for pioneering experimental methods to combat global poverty—argued that something fundamental shifted after 2019. "Until the pandemic, real incomes for the poorest were rising, and now, in many places, they are stagnating," he said.
Three Key Pressures on Portuguese Households
Portugal's residents face convergent challenges that make Banerjee's analysis particularly urgent. Real wages for low-income households have flatlined since 2020, reversing pre-pandemic progress and eroding purchasing power as inflation surges. More troubling still, artificial intelligence is expected to eliminate white-collar jobs faster than manual labour, creating unprecedented demand for social safety nets beyond traditional poverty relief.
Compounding these pressures is Portugal's tax structure, which largely exempts capital income—dividends, interest, rental income—from progressive income tax rates, limiting redistribution potential precisely when the middle class faces unprecedented vulnerability.
The economist pointed to soaring food prices and structural labour market changes as immediate culprits, but emphasized that deeper forces are at work. His diagnosis challenges a narrative gaining traction among right-wing parties across Europe: that welfare states have become "too generous." Banerjee called this framing baffling. "I don't understand why this idea has received any legitimacy," he said, noting that inequality is exploding globally even as politicians talk about trimming social spending.
Many European nations, including Portugal, maintain well-developed social insurance systems but fail to deploy them effectively. The bottleneck, Banerjee insisted, is not generosity but revenue: governments are mismanaging their budgets "mainly because we are not managing to tax the rich."
The Loophole Economy
The ultra-wealthy, Banerjee observed, have become experts at "disinformation and exploiting regulatory gaps to render their income invisible to tax authorities." He elaborated: "They are very good at pretending they have no income at all so they don't get taxed." The result is a vicious cycle: the rich pay minimal tax, governments slash spending elsewhere, and the system buckles under its own contradictions.
He sees an opening for reform, though, grounded in public frustration. "I hope people really accept that this is unsustainable," he remarked, signaling optimism that political will may be coalescing around aggressive taxation of extreme wealth.
Banerjee and fellow laureates—including Esther Duflo—have since 2025 advocated for a global minimum 2% wealth tax on ultra-high-net-worth individuals, a measure projected to generate $250B annually worldwide.
What This Means for Portugal
Speaking to Lusa news agency in June 2026, Banerjee's comments resonate particularly in Portugal, where economic inequality and fiscal debates are reshaping national policy. Portugal operates without a comprehensive wealth tax, aligning with most EU member states. Its main tools for taxing affluence include:
• AIMI (Additional Property Tax): Levied on real estate portfolios exceeding €600,000, with rates between 0.7% and 1.5%.
• Solidarity Surcharge: An extra 2.5% on income above €80,000 and 5% above €250,000.
• Stamp Duty on Inheritance: A flat 10% plus 0.8% on property transfers, though direct family members are exempt.
Yet a June 2026 study revealed a critical weakness: capital income largely escapes progressive taxation in Portugal. Dividends, interest, rents, and capital gains slip through the income tax net, meaning the IRS (Personal Income Tax) primarily redistributes through taxing wages and pensions—leaving the wealthy relatively untouched.
Meanwhile, the 2026 State Budget reduced IRS rates by 0.3 percentage points across the second to fifth brackets and cut the general corporate tax rate to 19% (down from 20%, with a target of 17% by 2028). The national minimum wage rose to €920, with a legislative goal of €1,100 by term's end, and the lowest pensions increased 2.8%.
The government also replaced the controversial Non-Habitual Resident (NHR) regime with the IFICI incentive, offering a 20% flat tax rate for 10 years to elite professionals in technology, engineering, executive management, and innovation sectors. This shift illustrates competing fiscal priorities: while the government aims to broaden the tax base for ordinary workers, it simultaneously offers sweeping breaks for high-earning expatriates, raising questions about equity and revenue strategy.
A separate proposal modeled on Spain's wealth tax could generate significant annual revenue, though no legislative action has been taken as of mid-2026.
The AI Wildcard
Banerjee also flagged an emerging threat: artificial intelligence decimating middle-class employment. Unlike past automation waves that targeted manual labour, AI disproportionately affects white-collar cognitive work—accountants, lawyers, programmers, journalists, customer service agents, market analysts.
The International Monetary Fund warned that AI will affect nearly 40% of jobs globally, with exposure climbing to 60% in advanced economies. A 2026 Goldman Sachs analysis estimated 11,000 job losses per month attributable to AI, while the World Economic Forum projected 92M roles eliminated by 2030, offset by 170M new positions requiring different skill sets.
Banerjee argued that taxing the wealthy becomes even more urgent in this context, as traditional middle-class workers—who historically did not require safety-net assistance—will need income support, retraining, and healthcare during transitions. He also proposed taxing AI infrastructure inputs, such as the massive water consumption by data centres, to fund these programmes.
Implementation Obstacles
Despite rhetorical support for progressive taxation, concrete progress remains elusive. Brazil and Spain jointly proposed a 2025 initiative on taxing ultra-high-net-worth individuals, but it has yet to yield binding multilateral agreements. In the United States, proposals like Senator Elizabeth Warren's "Ultra-Millionaire Tax Act" and President Biden's billionaire minimum tax have stalled in Congress.
California will vote in November 2026 on a one-time 5% wealth levy on billionaires to fund health and education, though analysts warn it could trigger capital flight. Several European countries—Germany, Norway, Belgium—have reportedly tightened exit taxes on wealthy residents relocating to lower-tax jurisdictions, charging a percentage on unrealized capital gains.
Banerjee emphasized that the problem is not inventing new policies but ensuring existing support reaches the right people. He cited research in Spain showing that many eligible poor households fail to access subsidies because application processes are "too complicated." His prescription: simplify access, expand funding, and restore progressive taxation. "This is not about reducing the welfare state; it is about increasing funds and reapplying taxation to the richest," he concluded.
Implications for Foreign Residents in Portugal
For expat residents in Portugal, these fiscal debates carry practical consequences. Any wealth tax implementation could directly affect property holdings, investment income, and tax planning strategies—particularly for those who relocated under favourable tax regimes like the now-superseded NHR regime. Foreign investors and remote workers should monitor parliamentary discussions and civil society advocacy around wealth taxation, as legislative changes could reshape the financial landscape in which they operate.
What's Next
The Portuguese parliament has not scheduled formal debates on comprehensive wealth taxation for the current legislative session, though civil society groups including advocacy organizations focused on inequality have begun pressing for urgent action. Banerjee's intervention adds international credibility to domestic arguments that Portugal's current fiscal model faces structural limits.
Portugal's National Strategy to Combat Poverty (2021–2030) and the new Gender Equality Strategy (2026–2030) outline ambitious social goals, including reducing child poverty, improving youth integration, and closing wage gaps. The Complemento Solidário para Idosos rose to €670 in 2026, a €40 increase, and the Social Support Index (IAS) was updated to €537.13.
Yet without addressing the structural revenue shortfall—what happens when capital income flows untaxed—these measures risk becoming unsustainable. Whether Portugal will join the handful of jurisdictions experimenting with wealth taxation, or continue relying on incremental adjustments to income and property taxes, remains an open question. What is clear, according to one of the world's foremost poverty researchers, is that the clock is ticking.
