Every year I sit across from an owner or an HR director who is absolutely certain their company is fine on the Affordable Care Act. Most of the time they are wrong about at least one number — usually because the number changed in the last twelve months and nobody told them. So here is every 2026 figure that matters, in one place, with what each one actually does to your P&L.
Penalty A: the sledgehammer
If you are an Applicable Large Employer (ALE) — you averaged 50 or more full-time employees plus full-time equivalents last year — and you fail to offer minimum essential coverage to at least 95% of your full-time people, one employee taking a subsidized exchange plan triggers §4980H(a): $3,340 for every full-time employee you have, minus the first 30. A 130-person company that misses the 95% test is looking at 100 × $3,340 — $334,000 for the year. Not per incident. Per year.
Penalty B: the tack hammer
Offer coverage but make it too expensive, and §4980H(b) charges $5,010 per year for each full-time employee who takes a premium tax credit instead. "Too expensive" in 2026 means the employee's share of self-only coverage exceeds 9.96% of household income. The clean way through is the federal-poverty-line safe harbor — a rule that, if you follow it, automatically satisfies the affordability test: keep at least one self-only option at $129.89 a month or less and affordability is settled automatically for calendar-year plans. The two penalties never stack in the same month — (a) is the ceiling — but either one arrives with interest.
The paperwork penalty nobody budgets
Separate from all of the above: ALEs must file Form 1094-C and a 1095-C for every full-time employee. Furnish employee copies by March 2; e-file with the IRS by March 31 (e-filing is mandatory once you have ten or more information returns — effectively everyone). A late or incorrect form costs $340. Both the employee copy and the IRS copy count, so one employee's bad form is $680. The annual cap is $4,098,500 — and there is no cap at all if the IRS decides you disregarded the rules intentionally.
Why this bites years later
The IRS doesn't audit you the way you imagine. It cross-references your W-2 filings against exchange subsidy data, and two or three years later a Letter 226-J — the IRS's ACA penalty notice — arrives proposing an assessment, with the burden on you to rebut it, line by line, from records you may not have kept. The statute of limitations on §4980H penalties runs six years. I have walked a 300-life client's CPA through these rules on a call the CPA didn't know he needed; he is excellent at taxes, and this simply is not taxes.
What to do this quarter
Count honestly — full-time plus equivalents, using last year's monthly averages. Check your cheapest self-only premium against $129.89. Pull last year's 1094-C acknowledgment and confirm somebody actually e-filed. If any of those three checks makes you pause, that pause is worth three minutes: our free audit runs the same tests an advisor would, in your browser, and puts a dollar figure on whatever it finds.
Find your number before the IRS does. The free ACA audit takes about three minutes and nothing is stored on this site.
Run the free ACA auditSources & notes: IRS §4980H indexed amounts for 2026 plan years; IRS Instructions for Forms 1094-C and 1095-C; Rev. Proc. 2025-25 (9.96% affordability; $129.89 FPL safe harbor); 2026 information-return penalty schedule ($340/form; $4,098,500 cap). Educational only — not tax or legal advice. Figures change annually; this page is reviewed each Q4.
