You can cancel your ACA insurance at any time by logging into your HealthCare.gov account, calling the Marketplace Call Center, or sending a written request by mail. Federal rules ask for at least 14 days’ notice before the end date you choose, and there is no penalty for leaving a Marketplace plan early. The parts that take more thought are the end date you pick, the tax reconciliation you will owe if you received premium tax credits, and the fact that voluntarily canceling does not open a Special Enrollment Period if you change your mind later.
The Three Ways to Cancel
Online is the fastest. Log into HealthCare.gov and go to “My Plans & Programs.” If everyone on the application is dropping coverage, choose “End (Terminate) All Coverage” and enter your end date. If only some household members are leaving, use “Report a life change” to update the application instead. The system will ask you to confirm that you understand you are ending your benefits and any financial assistance tied to them. A confirmation screen should appear once the request goes through, and when you end coverage for everyone, a “Status: Terminated” banner should show above the plan on your “My Plans & Programs” screen.1Centers for Medicare & Medicaid Services. Terminating a Marketplace Plan
By phone, call the Marketplace Call Center at 1-800-318-2596 (TTY: 1-855-889-4325). It is open 24 hours a day, 7 days a week, except on holidays.2HealthCare.gov. Contact Us A representative will verify your identity and household information and set the termination date with you.
By mail, send a written cancellation request to the Marketplace’s official mailing address, listed on the HealthCare.gov “Contact Us” page.2HealthCare.gov. Contact Us Mail takes longer to process, so give yourself extra lead time if you go this route.
If you are only removing some household members rather than ending the whole policy, call the Marketplace Call Center after you submit the change online to confirm the coverage end date for the people being dropped.1Centers for Medicare & Medicaid Services. Terminating a Marketplace Plan
What to Have Ready
Before you start, pull together a few things for every household member whose coverage is changing:
- The HealthCare.gov username and password for the primary account holder.
- Full legal names and Social Security numbers for everyone on the application, which the Marketplace uses to verify identity.
- Your Plan ID, a 14-character mix of letters and numbers listed in your account under “My Plans & Programs” or below the plan name on the plan preview screen. It is not the same as your Application ID.3HealthCare.gov. Plan ID – Glossary
If some household members are staying on the plan while others leave, be clear about who is dropping. Removing a person changes your household size, which can prompt the Marketplace to recalculate your advance premium tax credits since those credits depend on family composition and projected income.4Internal Revenue Service. Questions and Answers on the Premium Tax Credit Flagging this upfront helps you avoid billing errors.
Picking Your End Date
Federal rules define reasonable notice as at least 14 days before the end date you want.5eCFR. 45 CFR 155.430 – Termination of Exchange Enrollment or Coverage Give that much notice and your coverage ends on the exact date you chose. Ask for a date fewer than 14 days out and the system will typically shift your termination to 14 days after you file the request.
There are a few exceptions. The Marketplace or your insurer may agree to an earlier end date if you ask for one. If you have just been determined eligible for Medicaid, CHIP, or the Basic Health Program, the Marketplace can end your coverage retroactively to the day before your new eligibility began.5eCFR. 45 CFR 155.430 – Termination of Exchange Enrollment or Coverage State law may allow retroactive termination in other situations as well.
Outside those exceptions, your end date must be in the future. You cannot backdate a voluntary cancellation. If you are moving to a new plan, line up the dates so you do not pay for overlapping coverage or leave yourself with a gap.
Confirming It Went Through
After you submit, the Marketplace sends an electronic notice to your insurer, but the two systems are separate and delays happen. Call your insurance company within a few business days to confirm it has updated your policy, and ask the representative to read back the exact coverage end date and tell you whether a final premium is still due.
Both the Marketplace and the insurer will send you a formal termination notice, by mail or through a secure online inbox. It shows the date your coverage became inactive and confirms that no further tax credits will be applied to the plan. Hold onto it. You may need it at tax time or if you apply for new coverage later.
Your Final Bill
You owe the full premium for any month in which you had active coverage. Marketplace plans bill by the month, so even if your end date falls mid-month, you generally owe the whole premium for that final month. The specifics come from your insurance contract, so call your insurer to confirm the final amount.
Don’t Just Stop Paying
Letting a plan lapse is riskier than canceling it. If you receive advance premium tax credits, which most Marketplace enrollees do, your insurer must give you a three-month grace period before terminating the plan. The insurer keeps paying claims during the first month. In months two and three, it can hold claims in a pending status and warn your doctors that payment may be denied. If you still have not caught up by the end of month three, the insurer terminates your coverage retroactively to the last day of the first month, leaving you to pay out of pocket for anything you used in months two and three.6eCFR. 45 CFR 156.270 – Termination of Coverage or Enrollment for Qualified Health Plans
If you do not receive advance tax credits, the grace period is usually shorter, often 30 days depending on state law, and claims may not be covered during that window at all. A formal cancellation is the cleaner choice either way.
Coming Back After You Cancel
Voluntarily dropping your Marketplace plan does not qualify you for a Special Enrollment Period. The Marketplace treats a chosen cancellation differently from involuntary losses of coverage like a layoff or aging off a parent’s plan. If you cancel outside Open Enrollment and later want back in, you generally wait until the next Open Enrollment Period. On HealthCare.gov, that runs November 1 through January 15.7HealthCare.gov. When Can You Get Health Insurance?
Unpaid premiums add another complication. Under a rule that took effect in August 2025, insurers can require you to pay any past-due premiums before enrolling you in a plan with the same carrier or a related insurer. An outstanding balance can delay or block your new coverage even during Open Enrollment.
State Coverage Rules
The federal individual mandate penalty has been $0 since 2019, so canceling will not cost you a federal tax penalty. A handful of states and the District of Columbia keep their own coverage requirements, with penalties typically figured as the higher of a flat dollar amount per adult (and a reduced amount per child) or a percentage of household income, capped at the average cost of a bronze-tier plan. If you live in one of those states, check the rules before you cancel so you know what you might owe for months without qualifying coverage.
Tax Forms You Still Need
If you received advance premium tax credits for any part of the year, canceling mid-year still leaves you with a filing obligation.
The Marketplace sends Form 1095-A by January 31 of the following year.8Internal Revenue Service. Instructions for Form 1095-A It lists your monthly enrollment premiums, the benchmark premium used to figure your credit, and the advance credit amounts paid on your behalf. You get this form even if you only had coverage for part of the year.
You then file Form 8962 with your federal return to reconcile the advance credits you received against the credit you were actually entitled to based on your final income. Because you were not enrolled all 12 months, you use the monthly calculation on lines 12 through 23 rather than the annual totals.9Internal Revenue Service. Instructions for Form 8962 If your actual income came in higher than your enrollment estimate, you may owe some of those credits back. If it came in lower, the difference can show up as an extra credit on your refund.