Entity choice changes how a Florida small business owner pays for and deducts health insurance. C-corps treat the owner like any other employee: full corporate deduction, no income inclusion, no FICA. S-corps treat >2% shareholders differently: premiums become W-2 Box 1 wages with a corresponding Schedule 1 Line 17 above-the-line deduction. Both produce a deduction, but the FICA, state tax, and Section 199A interactions are not the same — and one structure can be hundreds or thousands of dollars more efficient than the other depending on the owner's compensation profile.
| Item | C-Corp Owner | S-Corp >2% Shareholder |
|---|---|---|
| Corporation deducts premium | Yes (Line 24 Form 1120) | Yes (Line 7 wages, Form 1120-S) |
| Owner W-2 Box 1 (income tax wages) | Premium NOT included | Premium INCLUDED |
| Owner W-2 Box 3/5 (FICA wages) | Premium NOT included | Premium NOT included |
| Owner personal return | No deduction needed | Sch 1 Line 17 deduction (recovers Box 1 inclusion) |
| Net income tax effect on owner | $0 (deduction at corporate level only) | $0 (deduction equals inclusion) |
| Section 125 pre-tax employee contribution allowed? | Yes | No (>2% shareholders excluded) |
The federal income tax outcome looks similar for both — a deduction either way. The differences show up in three places:
Owner takes $80,000 W-2 + $50,000 distribution; entity pays $20,000 premium for owner.
| Cost / Tax | C-Corp | S-Corp |
|---|---|---|
| Owner W-2 Box 1 | $80,000 | $100,000 (incl. premium) |
| Owner Schedule 1 Line 17 | $0 | ($20,000) |
| Net AGI from wages | $80,000 | $80,000 |
| Section 125 FICA savings on $20K premium | ~$1,530 (yes, 7.65% × $20K) | $0 (>2% excluded) |
| Section 199A on distribution | n/a | ~20% × $50K = $10,000 deduction |
IRS Notice 2008-1 treats >2% S-corp shareholders the same as partners for fringe-benefit purposes. They are not considered employees for purposes of cafeteria plans, so they cannot make pre-tax salary reductions for premiums. The above-the-line deduction on Schedule 1 Line 17 partly offsets this by recovering the federal income tax — but FICA savings are unrecoverable.
Sometimes. C-corp double tax applies only if profits are distributed as dividends. If the C-corp pays out all profits as W-2 wages and benefits, there's no second layer of tax. The 5.5% Florida corporate rate (vs zero for S-corp pass-through) and 21% federal rate matter most when the corp accumulates earnings.
Yes — file Form 2553 to elect S-corp from C-corp (or vice versa via revocation). Election changes are typically effective at the start of a tax year. The decision should consider compensation strategy, profit profile, and Section 199A position — not just health-insurance treatment.
A licensed Florida broker plus a CPA can model the C-corp vs S-corp difference for your business.
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