Global Medical Trend 2026: The Numbers Are In — and Latin America Is the Story

The 2026 medical trend surveys are out. Global medical inflation remains near double digits — and the sharpest acceleration is happening in MDabroad's home region.

Every year, the two benchmark surveys of global medical inflation — WTW's Global Medical Trends Survey and Aon's Global Medical Trend Rates Report — set the baseline that IPMI actuaries, underwriters, and employers use to price the year ahead. The 2026 editions are now available, and the headline numbers deserve a closer read than they usually get.

The Headline Numbers

WTW projects global medical costs to rise 10.3% in 2026, based on responses from 346 health insurers covering 82 countries. Aon projects 9.8% — which Aon notes is the first return to single-digit global growth since 2023.

Two respected surveys, half a point apart, both telling the same story: the post-COVID inflation spike has plateaued, but at a level far above historical norms. A decade ago, global trend ran 6–8%. The industry's new baseline is roughly 10% — every year, compounding.

The Regional Breakdown Is Where the Signal Is

Aon's regional picture is directionally similar: North America and Asia-Pacific rising, at 9.3% and 11.3% respectively; Europe declining to 8.2%.

For payers with Americas exposure, the number that matters is Latin America's jump from 10.5% to 11.9% — the sharpest regional acceleration in the WTW dataset. Currency instability, provider consolidation in Brazil and Mexico, and the international patient premium we've documented in our pricing series all compound on top of that headline rate. A foreign insurer paying non-contracted rates does not experience 11.9% trend. It experiences 11.9% on top of a rate base that was already 20–300% above domestic contracted rates.

What This Means in Practice

1. Trend is not destiny — it's the price of passivity. The survey numbers describe what happens to a payer who does nothing: no network steering, no repricing, no prompt-pay leverage, no length-of-stay management.
2. The U.S. remains the severity engine. North America's 9.2% looks moderate next to LATAM's 11.9%, but it applies to the highest cost base in the world.
3. LATAM programs need local repricing infrastructure now. At 11.9% and accelerating, the passive approach — pay the bill, book the loss — deteriorates faster each year.
4. Underwriters should pressure-test 2027 assumptions early. Both surveys were fielded in mid-2025, so interim signals matter.

The MDabroad View

We operate in the region where trend is accelerating fastest, and in the market where severity is highest. That is not a coincidence of geography — it is why our model exists. Network access, hospitalist deployment, UCR repricing, prompt-pay discounts, and AI adjudication are each worth points against trend.

Sources: WTW 2026 Global Medical Trends Survey; Aon Global Medical Trend Rates Report 2026; Risk & Insurance, “Global Medical Costs to Rise 9.8% in 2026.”