If you have health insurance through your work you can keep your coverage. You do not need to worry about enrolling in one of the plans offered through the Health Care Marketplace.
Will the Marketplace plans be cheaper than my current insurance?
In most cases, your employer pays part of your premium for job-based plans. Your employer would not be covering part of your premiums under a Marketplace plan. If your employer offers insurance that meets minimum standards for affordability and coverage, then you won’t be able to get lower costs on premiums or out-of-pocket expenses no matter your income or family size, according to the U.S. Centers for Medicare & Medicaid Services.