When should I return to the marketplace to renew my plan and update my eligibility for subsidies?

In most states, open enrollment for 2019 coverage is from November 1, 2018 to December 15, 2018. You must return to the marketplace to update your eligibility and enroll into a health plan by December 15, 2018. Some states may have a longer open enrollment so check with your state marketplace. (45 C.F.R. § 147.104; 82 Fed. Reg. 18346, April 18, 2017; 83 Fed. Reg. 16930, April 17, 2018).