HSA eligibility,
a lot more people qualify in 2026.

Field guide

HSA eligibility just expanded — here's exactly how it works for 2026.

Health Savings Accounts have always offered the best tax treatment of any account type, but eligibility used to be narrow — you needed a traditional High Deductible Health Plan (HDHP), full stop. IRS Notice 2026-5, implementing changes from the One Big Beautiful Bill Act, widens that gate substantially starting January 1, 2026.

The 2026 numbers

The annual contribution limit is $4,400 for self-only coverage and $8,750 for family coverage, plus an extra $1,000 catch-up if you're 55 or older (a fixed amount, unchanged by statute since 2009). Separately — and easy to confuse with the contribution limit, so kept visually distinct in this calculator — a traditional HDHP must have an annual deductible of at least $1,700 (self-only) or $3,400 (family), and annual out-of-pocket costs (deductible, copays, coinsurance — never premiums) capped at $8,500 (self-only) or $17,000 (family). That deductible/OOP pair defines the PLAN; the $4,400/$8,750 figures define what you're allowed to put INTO the account.

Three new eligibility paths

Bronze and Catastrophic ACA marketplace-style plans now count as HSA-eligible outright as of 2026, regardless of whether they actually meet the traditional HDHP deductible/OOP structure above — and they don't even need to be purchased through an Exchange. This alone roughly expands the pool of HSA-eligible Americans from about 15% to about 25% of the population, since Bronze and Catastrophic plans were previously locked out almost entirely. Telehealth visits before your deductible are now permanently compatible with HSA eligibility, ending years of temporary relief that kept expiring and getting renewed. And Direct Primary Care memberships no longer automatically disqualify you — though with a real limit worth understanding precisely below.

Direct Primary Care: the nuance worth getting right

It's easy to read "DPC is now HSA-compatible" as meaning DPC membership alone makes you HSA-eligible. It doesn't. Per Notice 2026-5 itself, a DPC arrangement simply stops being treated as disqualifying "other coverage" for someone who is otherwise eligible — you still need qualifying HDHP or Bronze/Catastrophic coverage underneath it. There's also a real dollar ceiling: DPC fees above $150/month (self-only) or $300/month (family — aggregated across every DPC arrangement you're enrolled in) make the DPC coverage disqualifying again, the same way it worked before 2026. Stay under that line, and your DPC fees are also now payable tax-free directly from your HSA (though not if your employer is the one paying them).

The last-month rule's real risk

If you only become HSA-eligible partway through the year, your contribution limit is normally prorated by the number of eligible months. The last-month rule is a shortcut around that: be eligible on December 1st, and you can contribute the full year's limit despite the partial-year coverage. The trade-off is a 13-month "testing period" — you have to stay eligible all the way through December 31st of the following year. Fall out of eligibility before then, and the excess above what you would have gotten through normal proration is hit with both ordinary income tax and a 10% additional tax. It's a real benefit for someone confident their coverage is stable, and a real trap for someone who isn't.

Disclaimer

This calculator is for informational planning purposes only and does not constitute tax or insurance advice. It takes your plan-type selection as given rather than independently verifying your specific plan meets HDHP requirements. Consult your plan's Evidence of Coverage, IRS Publication 969, or a tax professional for guidance specific to your situation.