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Adding a spouse to health coverage: an employer plan may give you only 30 days, not 60
Marriage is a "qualifying life event" for health insurance, allowing you to add a spouse without waiting for year-end open enrollment. But how long that window lasts depends on which route you take, and the two routes do not offer the same number of days.
30 days vs 60 days
- Employer group plan: marriage is a HIPAA special enrollment event, with a statutory minimum of 30 days. An employer may allow longer, but that's the employer's choice, not your right. Go by what your company's HR says.
- ACA Marketplace (bought yourself on healthcare.gov): 60 days. The official wording is "You may qualify for a Special Enrollment Period if in the past 60 days you or anyone in your household: Got married."
❗ The danger here: "you have 60 days after the wedding to add coverage" is all over the internet, because the Marketplace rule is written more clearly and gets quoted more often. Anyone on an employer plan who treats 60 days as safe may already be past the deadline.
So the first thing to do once the wedding is over is look up how many days your company's HR actually allows. Don't go on impressions.
The Marketplace effective date isn't what you'd expect
The official wording: "Pick a plan by the last day of the month and your coverage can start the first day of the next month."
In other words, a marriage special enrollment isn't retroactiveIf you pick a plan by the end of this month, coverage starts on the first of next month. That is different from events like having a child, which can be backdated to the birth date.
Practically: if you want your spouse covered as soon as possible, settle on a plan before the end of the month; slip past it and you've lost a full month.
What happens if you miss it
You wait until year-end open enrollment to add them, and in the intervening months your spouse simply has no insurance. In America, a single ER visit in those months can be a five-figure bill.
That is why this item is flagged on the checklist as the one most easily missed while busy with the wedding. Its window lands right during your honeymoon, collecting cash gifts, opening presents, and writing thank-you cards, and nobody is going to remind you.
Four things to handle in the same sitting
Since you're going into the HR system anyway, do these four at once rather than logging back in later:
- Your name (if you changed it, the SSA has to be done first, see item 11 of the checklist)
- W-4 filing statusDual-income households especially need to recalculate this. If you each filled out your forms as single, filing jointly might reveal under-withholding and leave you owing a large tax bill.
- Adding your spouse to health coverage
- 401(k) and life insurance beneficiariesThis is the most commonly missed one. A beneficiary designation overrides a will, and a pre-marriage policy usually still names a parent.
What to have ready
Most HR departments want a certified marriage certificate as proof of the event (which is why item 10 of the checklist tells you to order several). Some companies accept an uploaded scan instead. Ask first.
Official source
Marketplace special enrollment rules: healthcare.gov. For an employer plan, go by your own company's HR documents.
In one line
The moment the wedding is over, ask HR "how many days do I have": the answer may be 30, not 60.