Over the weekend, open enrollment began in most states for those who buy their health insurance though the Affordable Care Act (ACA) marketplace.

This year saw the expiration of the enhanced premium tax credits and further changes are expected in 2027.

Here's what to know about open enrollment for the upcoming year: How long does open enrollment last? Open enrollment typically runs from Nov. 1, 2026 through Jan. 15, 2027. Three states -- Connecticut, Idaho and Massachusetts -- saw their open enrollment period begin last month.