Can Anyone Have an HDHP?
Short answer: almost anyone can sign up for an HDHP if one is offered to them. But not everyone who has an HDHP can open a Health Savings Account (HSA). That's where people get mixed up. Let's sort it out.
Who can sign up for an HDHP?
You can usually choose an HDHP if:
Your job offers one. Many employers offer an HDHP as one of their plan choices.
You buy your own insurance. You can find HDHPs on the Health Insurance Marketplace (HealthCare.gov or your state's site). Starting in 2026, bronze and catastrophic Marketplace plans also count as HSA-friendly plans.
There's no age or income rule for picking an HDHP itself.
Who can open an HSA?
This is where the rules come in. To put money into an HSA, you must:
Be covered by an HSA-friendly HDHP.
Not have other health coverage that isn't an HDHP. For example, if you're also on your spouse's PPO plan, you can't add to an HSA.
Not be enrolled in Medicare. Once Medicare starts, you can't add new money to an HSA. You can still spend what's already there.
Not be claimed as a dependent on someone else's tax return.
Watch out for this common trap
A regular Flexible Spending Account (FSA) counts as "other coverage." That includes your spouse's FSA, because it can pay for your care too.
So if your spouse has a regular FSA at work, you usually can't add to your HSA. The fix? Your spouse could choose a Limited Purpose FSA instead. That kind only pays for dental and vision, so it works with an HSA.
Meet Lena
Lena picked an HDHP at her new job. She was excited to open an HSA. But her husband, Marcus, had a regular FSA through his job. Because Marcus's FSA could pay for Lena's doctor visits, Lena couldn't add to an HSA that year.
The next year, Marcus switched to a Limited Purpose FSA. Now Lena can save in her HSA, and Marcus still gets help with dental and vision costs.
Key takeaways
Almost anyone can sign up for an HDHP if it's offered.
Opening an HSA has extra rules: no other regular coverage, no Medicare, and not claimed as a dependent.
A spouse's regular FSA can block your HSA. A Limited Purpose FSA can fix that.
