ACA Marketplace 2027 Premiums Rise Again, Fueled by Costs and Subsidy Sunset

Rate filings from 77 ACA Marketplace insurers across 16 states/DC show a median 14% proposed increase for 2027, continuing a double-digit rise driven by higher medical costs (about 10% trend), inflation, labor shortages, GLP-1 drug costs, and the expiration of enhanced premium tax credits that raised morbidity in 2026. Some insurers seek more than 20% hikes; final rates will be set in late summer, with many enrollees still subsidy-eligible but facing a larger subsidy cliff that raises net premiums.