The short answer: ask before you cancel anything. The new policy is in force first, then the old one is cancelled effective the same date. Done in that order, you are never double-paying and never uncovered.
Why order matters
Cancel first and you may have a stretch with no coverage, if the new plan's start date is later than you expected or the new application is not approved. Wait too long to cancel and you pay two premiums. Lining the dates up so one ends the day the other begins avoids both.
When a new plan can start
- Marketplace: Open Enrollment in most states runs November 1 through January 15, and you enroll by December 15 for a January 1 start. A few state-run exchanges use their own windows.
- Private plans: enroll any month. For most private plans on our site, applications submitted by the 23rd of the month start on the 1st of the next month; some carriers allow mid-month starts. We confirm the exact effective date before you sign, and never backdate.
Picture it
You get approved for a new plan and, relieved, call your old insurer that afternoon to cancel. A week later you learn the new plan starts on the 1st of next month, not today. For the days in between, you have no coverage, and that is the week your son breaks his wrist.
Now picture the other version. You tell us before you cancel. We confirm the new plan's start date in writing, then cancel the old plan effective that same date. Some policies refund unused premium and some need written notice, and we handle that paperwork with you. The day one ends, the other begins.
Your switch checklist
- Do not cancel anything until the new plan is approved and you have its start date.
- Check your doctors against the new plan's network by name. Networks change, so we verify at enrollment.
- Starting late in the year? Check when the new deductible resets, because a calendar-year deductible starts over every January 1.
- Then cancel the old plan effective the new plan's start date.
Wondering whether switching is worth it at all? Your health insurance went up: should you stay?
This is general education, not a guarantee of coverage. Approval, start dates and cancellation terms depend on the carrier, your state and underwriting.