What if I terminated my Marketplace health plan in the middle of the month?

If all the enrollees in a qualified health plan terminated the coverage before the last day of the month and the insurance company reduced the premiums for that month or issued you a refund for the remainder of the month you'll need to prorate your premium and the premium amount of the Second Lowest Cost Silver Plan (SLCSP) by the number of days enrolled that month.

So if the plan terminated on June 3rd you'd prorate the premiums and SLCSP premium by .1 (3/30)