Open enrollment for 2027 health coverage is running right now — most ACA marketplace windows close by mid-December, and a lot of employer and individual HDHP elections for a January 1 start lock in before that too. Buried in the plan-picker screens is a number worth knowing before you click anything: the IRS already set 2027's HSA contribution limits back in May, in Revenue Procedure 2026-24, and they're some of the only figures in a reseller's whole tax picture that don't depend on how the reselling year actually went.
The 2027 numbers
Per Revenue Procedure 2026-24, effective for HSA-qualifying coverage in 2027:
- Self-only HSA contribution limit: $4,500, up from $4,400 in 2026
- Family HSA contribution limit: $9,000, up from $8,750 in 2026
- Age-55+ catch-up contribution: $1,000 — unchanged, because unlike
- almost every other figure here, the catch-up amount is fixed by statute
- and was never written to adjust for inflation
- HDHP minimum deductible to qualify: $1,750 self-only / $3,500
- family, up from $1,700 / $3,400
- HDHP maximum out-of-pocket: $8,700 self-only / $17,400 family, up
- from $8,500 / $17,000
Two separate things move together here: the HSA contribution ceiling itself, and the HDHP design rules that decide whether a plan even qualifies you to use one. A plan with a $1,600 deductible doesn't become HSA-eligible just because you want it to — for 2027 it needs to clear $1,750 self-only or $3,500 family, or it isn't a qualifying HDHP at all, no matter what the insurer calls it on the plan-picker page.
Why this is a different kind of deduction than the one you already know
The self-employed health insurance deduction that covers your actual premium is capped hard by net self-employment income — no profit, no deduction, full stop, Section 162(l) says so directly. A SEP-IRA or Solo 401(k) employer-side contribution works off a percentage of that same net profit number. Almost everything in a reseller's return that sounds like "put money away, deduct it" is secretly asking the same question first: did the business make money this year?
The HSA deduction, on Form 8889, flowing to Schedule 1, Line 13, doesn't ask that question. Section 223 ties HSA eligibility to one thing only: being covered by a qualifying HDHP and not having disqualifying other coverage — Medicare, a spouse's non-HDHP family plan, certain other first-dollar coverage — for each month you're claiming. There's no earned-income test and no net-profit test anywhere in it. A reseller who had a genuine loss year — inventory written off, a slow Q4, both — can still fund an HSA up to the full limit and deduct every dollar of it, as long as the coverage itself qualifies and the money comes from somewhere: savings, a spouse's income, last year's profit still sitting in a bank account. Compare that to the SEP-IRA and Solo 401(k) math in our retirement-plan breakdown: both of those are literally calculated as a percentage of net profit, and both land at zero in a loss year. An HSA doesn't.
What actually disqualifies you
- Being enrolled in any part of Medicare. Once Medicare coverage
- starts, HSA contributions stop, even if you're still reselling and
- still technically covered by what used to be a qualifying HDHP.
- Being claimed as someone else's dependent.
- Having other coverage that pays before the HDHP deductible kicks in
- — a spouse's low-deductible plan you're also on, a second health plan,
- or an employer plan that isn't itself an HDHP. A spouse's dental,
- vision, or specific-disease coverage doesn't disqualify you; a spouse's
- regular PPO that covers you too generally does.
- **An "embedded deductible" family plan with too low an individual
- deductible.** Some family HDHPs pay out once one family member hits a
- lower per-person deductible, before the full family deductible is met.
- For 2027, that embedded individual deductible has to be at least
- $3,500 — the family minimum — or the plan loses HSA-qualifying status
- for everyone on it. Worth checking the actual Summary of Benefits during
- open enrollment, not assuming "high deductible" in the plan's name is
- enough.
A worked example
Say a reseller nets $0 on Schedule C for 2026 after a rough year — a dead-stock write-off, a slow Q4, maybe both — but has a spouse earning a W-2 salary, and the household is on a family HDHP that qualifies under the 2027 numbers above.
- Self-employed health insurance deduction (Section 162(l)): $0. Net
- self-employment income is $0, and the deduction can't exceed it, no
- matter what was actually paid in premiums.
- SEP-IRA or Solo 401(k) employer-side contribution: $0. Both are
- calculated as a percentage of that same $0.
- HSA contribution: still up to $9,000 for 2027, fully deductible on
- Schedule 1, funded from the spouse's income or savings — because
- Section 223 never asked how the reseller's business did this year.
Same household, same bad reselling year, three deductions that quietly ask the same underlying question — and only one of them answers "doesn't matter."
What to actually do
- **Confirm your actual HDHP numbers during open enrollment, not after
- you've already enrolled.** A plan has to meet the 2027 minimum
- deductible and maximum out-of-pocket to qualify — check the Summary of
- Benefits, not the marketing page.
- Don't assume a loss year rules out funding an HSA. It's the one
- piece of this whole picture that isn't gated by net profit, unlike the
- health insurance premium deduction or a SEP/Solo 401(k) contribution.
- **You have until the unextended tax filing deadline, not December 31,
- to actually make the contribution** — the same rule as an IRA. A 2027
- HSA contribution can still be made as late as mid-April 2028, when a
- 2027 return is due.
- **If you're on a family plan with an embedded individual deductible,
- check it against the $3,500 family minimum for 2027.** A plan that
- qualified in an earlier year under a lower threshold can fail to
- qualify this year if the embedded number didn't move with it.
PalmFlow tracks the net Schedule C profit number that the health insurance deduction and a SEP or Solo 401(k) contribution are both capped by — but the HSA deduction above doesn't run through that number at all, which is the whole point of this post. It doesn't touch health coverage, HDHP eligibility, or HSA contributions; that's a health-insurance and tax-software question, not an inventory tool's job. Free plan, 50 items, no card required.
Disclaimer: this is general information, not tax or insurance advice. The 2027 figures above come from IRS Revenue Procedure 2026-24; whether a specific plan qualifies as an HDHP, whether other coverage disqualifies you, and how much you can actually contribute depend on your full facts — confirm your plan's deductible and out-of-pocket structure, and your own eligibility, with your insurer and a CPA before relying on anything above.