How Much and Why ACA Marketplace Premiums Are Going Up in 2027 Authors: Matt McGough, Jared Ortaliza, Ashley Ferguson, Imani Telesford, Shameek Rakshit, Lynne Cotter, and Cynthia Cox Published: Aug 3, 2026

https://www.kff.org/affordable-care-act/how-much-and-why-aca-marketplace-premiums-are-going-up-in-2027/ ACA Marketplaces insurers are proposing a median premium increase of 15% in 2027, according to KFF's updated analysis of 276 insurers with publicly available filings across all 50 states and the District of Columbia.