When Does My Covered California Coverage Start?

Effective Date Rules

Coverage always starts on the first day of a month. If your enrollment is submitted before the end of the current month and all documents are in order, your coverage starts on the 1st of the following month.

Open Enrollment Coverage Start Calendar (2027 Coverage)

Here's when your coverage starts based on your enrollment month during open enrollment (November 1, 2026 to January 31, 2027):

During open enrollment, a plan picked in November or December is for the next year and starts January 1, as Covered California explains. Outside open enrollment, with a qualifying life event, coverage usually starts the first of the month after you pick a plan, so a special enrollment in November can start December 1.

Payment Deadlines

After enrolling, you must pay your first month's premium by the deadline for coverage to begin:

• Standard deadline: Premium due by the 23rd of the month before coverage starts
• January 1 coverage: Premium due by December 23 (or December 31 for some carriers)
• No payment = No coverage: If you don't pay, your enrollment is canceled

Payment Methods

• Online payment (credit/debit card, bank account)
• Mail a check to your insurance carrier
• Automatic monthly payments (recommended)

Set up automatic payments to ensure you never miss a payment and lose coverage.

Special Enrollment Period Coverage Dates

If you're enrolling during a Special Enrollment Period (due to job loss, marriage, birth, etc.), coverage start dates work slightly differently:

Loss of Coverage

If you lost other coverage (job-based insurance, COBRA, Medi-Cal), you have 60 days to enroll in a Special Enrollment Period. Your coverage will start on the 1st of the month following your enrollment. This means there may be a gap between your old coverage ending and new coverage starting, depending on when you apply. The only exception is for newborns—coverage for a new baby starts on the day of birth.

Other Qualifying Events

For other qualifying events (marriage, birth, moving), standard rules apply:

• Enroll within 60 days of the event
• Coverage starts the 1st of the month following enrollment

How to Avoid Coverage Gaps

A coverage gap means going without insurance, which can result in unexpected medical bills and tax penalties. Here's how to avoid gaps:

Losing Employer Coverage

• Know your last day of coverage (usually the last day of the month you lose employment)
• Enroll immediately when you lose coverage—don't wait
• Request backdated coverage to start the day after employer coverage ends

Switching Plans During Open Enrollment

• Your old plan automatically continues until December 31
• New plan starts January 1—no gap
• Make sure you pay the first premium for the new plan by December 23

Missing Payment Deadlines

• Set up automatic payments to avoid missed payments
• If you miss a payment, you typically have a 30-day grace period
• After grace period, coverage terminates and you may not be able to re-enroll until next open enrollment