Meta Brazil Ad Costs Rise 12.15% on Tax Pass-Through, Squeezing Advertisers

Meta has passed federal taxes (PIS/Cofins, ISS) to Brazilian advertisers, raising ad costs by an average of 12.15% since January 1, 2026. This reduces ad volume for the same budget amid rising auction competition, pressuring advertiser ROI and potentially shifting spend to alternatives. The move reflects Meta's pricing power and tax environment changes in Brazil.