Colorado Special Enrollment Period Checker

How the Special Enrollment check works

The checker matches the event you pick against the qualifying life changes Connect for Health Colorado lists, then counts days from the date you enter.

Timing rules differ by event. A loss of coverage looks both backward and forward; a marriage, birth or move looks only forward from the date it happened. The checker treats each event the way Connect for Health Colorado describes it.

1. Sort the event. Losing coverage, marriage, a birth or adoption, a move with prior coverage, and gaining citizenship or lawful presence are treated as qualifying. A voluntary drop or a lapse for non-payment is not.
2. Apply the move test. For a move it asks whether you had qualifying coverage in the 60 days before; moving while uninsured usually opens nothing.
3. Count the days between the event and today, against the 60-day window Connect for Health Colorado gives.
4. Look ahead for losses. If coverage ends in the future, it says apply now, since a loss usually lets you apply in the 60 days before it.
5. Name the paperwork an insurer most often asks for to prove the event.

Ways people lose a Special Enrollment Period

• Waiting out the COBRA decision. COBRA’s 60-day election clock and the marketplace window start together (CMS). Choosing COBRA and later dropping it voluntarily does not usually reopen enrollment.
• Moving without prior coverage. A new ZIP code alone rarely qualifies unless you had coverage in the 60 days before the move.
• Assuming enrollment happens on its own. Nothing starts until you apply and choose a plan.
• Losing the proof. Your insurer may ask for proof after you enroll (Connect for Health Colorado). Keep the termination letter, certificate or lease.
• Forgetting Medicaid is year-round. If income drops, Health First Colorado and CHP+ accept applications in any month.
• Mixing up a Medicare clock with a marketplace clock. Turning 65 starts your Medicare Initial Enrollment Period. Plan the move from a marketplace plan to Medicare on that timeline rather than waiting for a marketplace window.

Colorado-only routes into coverage

Connect for Health Colorado decides Special Enrollment eligibility for Coloradans; HealthCare.gov does not handle Colorado plans.

Tax Time Enrollment: checking a box when you file your Colorado state return by April 15 can connect you with free or low-cost coverage and qualify you for a Special Enrollment Period (Connect for Health Colorado).

Members of federally recognized tribes can enroll any time of year.

The state list also counts losing Health First Colorado or Medicare Part A eligibility, turning 26 and ending a student plan. Adults 19 to 64 with income up to 133% of the poverty level may qualify for Health First Colorado itself (HCPF).

Key terms: Special Enrollment checker

Qualifying life change

An event such as losing coverage, marriage, a birth or a move that opens enrollment outside the yearly window.

Special Enrollment Period

The 60 days after a qualifying change during which you can buy or switch a marketplace plan.

Prior coverage rule

For many moves, you must have had qualifying coverage for at least one day in the 60 days before.

Open Enrollment

The yearly window, November 1, 2026 to January 15, 2027, for 2027 coverage.

Tax Time Enrollment

A Colorado option that starts with a checkbox on your state income tax return.

Proof insurers commonly request

• A letter from the employer or insurer stating the exact termination date.
• Marriage certificate, birth certificate, or adoption or placement papers.
• Lease, mortgage statement or official mail at both the old and new address.
• Naturalization or immigration documents, and income estimates for everyone in the household.