Chile enters the second quarter of 2026 with almost every macroeconomic indicator pointing in the same encouraging direction — and almost every political indicator pointing the opposite way. The result is a country whose financial markets are celebrating a future its legislature has not yet agreed to deliver.
The numbers that justify the optimism
Chile's economy grew 2.5% in 2025, beating consensus estimates, with the fourth quarter delivering a sharp upside surprise driven by mining output and a wave of investor confidence following Kast's December 2025 election win. Inflation, which peaked near 14% in 2022, fell to 2.4% in February 2026 — the first sub-3% reading in five years — letting the central bank hold its policy rate at 4.50% after cutting it by a cumulative 675 basis points since 2022. The Santiago stock exchange's IPSA index posted a 56% total return in 2025, its best calendar year in three decades, then hit an all-time high of 11,721 points on the very day of Kast's inauguration. Net foreign direct investment reached $14.5 billion in 2025, up from $13.1 billion the year before. Copper, which drives roughly half of Chile's export revenue and a tenth of its GDP, is trading well above historical averages, with consensus 2026 price forecasts between $11,400 and $12,500 per tonne.
The reform that triggered the rally
Kast took office on March 11, 2026, and within five weeks unveiled what local press has called a "megareform": a package of more than 40 measures covering tax competitiveness, post-fire reconstruction, construction revival, investment certainty, and spending discipline. The centerpiece is a corporate tax cut from 27% to 23%, which would bring Chile closer to the OECD average and affect an estimated 150,000 companies employing half the country's formal workforce. A $1.4 billion annual payroll tax credit targets 235,000 small and mid-sized businesses. The package would also reinstate the fully integrated tax system that existed before Boric-era reforms, eliminating double taxation on profits distributed to shareholders, and offer a 25-year tax-invariability guarantee for long-term investment projects.
Why the math doesn't work in Congress
Kast's coalition controls neither chamber: the Senate is tied and his alliance holds a minority in the Chamber of Deputies, meaning every meaningful provision needs opposition votes to pass. University of Chile economist Jorge Berríos has said the package's full corporate-to-personal tax integration credit "will not pass under any circumstances," and a political analyst quoted in local coverage described even a September 2026 timeline for partial passage as "difficult." International observers have echoed the skepticism: a Bloomberg analysis flagged that the near-term tax cuts risk widening the fiscal deficit before any growth dividend materializes, while Fitch Ratings has said the spending pressures are testing Kast's ability to keep his consolidation plan on track. Kast's approval rating had already slipped to 47% after a controversial fuel-price decree, adding domestic political pressure on top of the legislative arithmetic.
The copper complication
The commodity windfall that's lifting Chile's markets is also masking a structural problem at the country's largest copper producer. State-owned Codelco produced just 1.332 million tonnes in 2025 — a marginal gain that included the loss of roughly 45,000 tonnes to a fatal accident at its El Teniente mine — and in January 2026 the company pushed back its own peak-production timeline from 2027 to 2034, citing aging infrastructure and more than $20 billion in debt. National copper output actually fell 3% year-on-year in January 2026, hitting a nine-year low. Kast has promised to accelerate mining permits, but the production fixes Codelco needs are measured in years, not legislative sessions.
Lithium: pro-market rhetoric meeting a state-run reality
Kast campaigned on reclassifying lithium so it could be mined under ordinary concessions rather than the current state-partnership model — a change that requires amending Chile's mining code, which is exactly the kind of legislative majority he doesn't have. The Boric-era joint venture between SQM and Codelco, which now governs lithium production in the Salar de Atacama through 2060 and gives the state 70% of operating margins through 2030, remains untouched; Kast has pledged to honor it. One legal analysis summed up the gap bluntly: until new legislation says otherwise, investors should assume Chile's lithium sector keeps operating under the state-led model Kast campaigned against.
What's actually at stake through the rest of 2026
Public debt has climbed from 28% of GDP before 2019 to 42.7% in 2025, narrowing the buffer against Chile's self-imposed 45% fiscal ceiling — which is part of why economists are watching whether Kast's tax cuts pass before or after his promised $6 billion in spending reductions actually materialize. Most forecasters, including the IMF and Chile's own finance ministry, see 2026 growth landing between 2.0% and 2.4%, roughly in line with the country's structural potential — solid, but not the breakout some of the market enthusiasm implies. The practical question through the second half of 2026 is whether Kast can convert a market mandate into a legislative one: whether enough of the megareform survives committee negotiations to count as a win, or whether Chile ends up with another example of a market-friendly president whose agenda is real but, in the words of one post-election assessment, "incremental rather than transformative."