I received premium tax credits and cost-sharing reductions in 2016, but did not file a 2016 tax return and did not reconcile my premium tax credits. Will this affect my eligibility for premium tax credit and cost-sharing subsidies in the future?

Individuals with no coverage | Eligibility for Premium Tax Credits and Cost-Sharing Reductions

Yes. If you did not file and reconcile your premium tax credits for 2016 or any year you received premium tax credits, you will not be eligible for premium tax credits and cost-sharing reductions for 2018 coverage and in the future. In general, you can file your taxes, reconcile premium tax credits using IRS Form 8962, and contact the marketplace to obtain an updated eligibility. You will also have to attest that you reconciled any previous advanced premium tax credits and filed a tax return. If you do this before the end of open enrollment, which for 2018 coverage is December 15, 2017, your premium tax credit and cost-sharing reductions may continue, if eligible. If you do nothing, the marketplace will re-enroll you into 2018 coverage if eligible, but without premium tax credits and cost-sharing reductions. (26 C.F.R. § 1.36B-2; CMS, Guidance on Annual Eligibility Redetermination and Re-enrollment for Exchange Coverage for 2018, July 13, 2017). 

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