Argentina’s inflation collapse is easiest to understand if the calendar and the denominator are kept in view. INDEC’s December 2023 report put monthly consumer-price inflation at 25.5% after the incoming government’s peso adjustment; its 2023 full-year increase was 211.4%. INDEC’s August 2026 release reported monthly inflation of 1.7%, 21.3% accumulated since December 2025 and 33.5% over the preceding twelve months. The achievement is a much slower rate of price increase. It is not a return to December 2023 prices.
Read the three measures separately
Monthly inflation compares a month’s overall consumer basket with the preceding month. The year-to-date figure compounds monthly increases since the previous December. The twelve-month figure compares a month with its counterpart a year earlier. These statistics can move in different directions: the annual measure can rise even as the latest month moderates, depending on which older monthly reading drops out of the comparison. An annual percentage is not twelve times the latest monthly number, and no single month proves a permanent trend.
A useful sequence comes from three official snapshots. INDEC reported 2.7% for December 2024 and 117.8% for 2024 as a whole. Its August 2026 report gave 1.7% for the month and 33.5% for the preceding twelve months. The index’s August 2026 monthly core component was 1.8%, regulated prices rose 2.2%, and seasonal prices fell 0.9%. Differences between those categories matter because the headline rate can be pulled down by seasonal items even while underlying or administered costs continue increasing.
The agency measured housing, water, electricity, gas and other fuels at 2.8% for August 2026, compared with 1.7% for all items. Household experiences therefore vary. A renter buying different products in a different region does not live exactly inside the national index. INDEC publishes a standard national basket and regional comparisons; the index is meant to compare prices consistently, not to declare every family’s bill identical.
Why it slowed
Milei’s December 2023 inaugural address made the fiscal deficit and money creation the centre of his diagnosis. The first shock was inflationary: a large relative-price and exchange-rate adjustment arrived in an economy already under severe pressure. Subsequently, fiscal restraint, a restrictive monetary stance and slower exchange-rate adjustment helped contain peso demand and expectations. The BCRA’s April 2025 policy statement set out its prohibition on monetary financing of the fiscal deficit and its shift to a currency band. These are mechanisms and stated policy choices; a single official time series cannot measure precisely how much of the disinflation came from each.
Weak demand can also restrain prices: customers unable to afford higher prices force sellers to absorb costs or cut activity. A stronger relative peso can reduce pressure on imported goods, but also strain exporters’ competitiveness if domestic costs rise faster. Changes in regulated utility prices can delay or front-load measured inflation. An international reader should be sceptical of an account that attributes the whole path to one lever, whether government spending, the exchange rate, or subdued consumption.
The 2025 foreign-exchange liberalisation is another reason to avoid a straight-line narrative. The BCRA removed the individual USD200 dollar-purchase cap in April 2025 and set an ARS1,000–1,400 per dollar band, initially widening monthly. In January 2026 the bank linked the monthly adjustment of band edges to an INDEC inflation reading lagged by two months. That makes inflation both an outcome the authorities hope to contain and an input to the exchange-rule parameters; it does not guarantee that the market rate follows the edge of the band.
The remaining question
Disinflation is economically valuable because it makes wages and contracts easier to interpret, but it does not automatically repair purchasing power. If wages lag the accumulated rise in prices, families may still be worse off while headline inflation falls. Conversely, a fall in inflation can eventually allow nominal wage increases to become real gains. Measure those effects with income data over matching periods, not an anecdote about one shopping trip.
As of the September 10, 2026 CPI release, the latest confirmed monthly national reading in this explainer was 1.7% for August. Inflation was still positive, and the annual rate still 33.5%. To assess the next stage, watch the headline, core and regulated components together, the currency band, and wage and poverty measures. The question is no longer whether a 25.5% monthly reading could be reduced. It is whether low inflation can endure without sacrificing the income recovery that would make stabilisation broadly felt.
The index’s compounding also matters for real pay. If a basket rises in consecutive months, the second increase applies to the already higher first-month price. A later 1.7% month does not cancel an earlier 25.5% shock. A household may therefore feel little relief until its nominal earnings outpace the entire accumulated change in its own spending basket. This is why an inflation chart and a real-wage chart answer different questions; both are required before declaring that stabilisation has restored living standards.
