Compute SE health insurance deduction.
Deduction allowed
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Your breakdown
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An above-the-line deduction worth chasing
Employees buy health insurance with pre-tax dollars through their employer and rarely think about it. The self-employed have to buy their own coverage, often at full retail, but the tax code throws them a meaningful bone: the self-employed health insurance deduction. It lets you subtract 100 percent of the premiums you pay for yourself, your spouse, and your dependents directly from your income, claimed above the line on Schedule 1 of Form 1040. Above the line matters because you get it whether or not you itemize, and it lowers your adjusted gross income, which can unlock other income-tested breaks. This tool takes your premiums and your business net profit and returns the deduction allowed plus the tax it saves.
Premiums that count include medical, dental, vision, and qualifying long-term care coverage, the latter subject to age-based dollar caps. Medicare premiums also qualify once you are self-employed and on Medicare.
Deducting $15,000 in premiums
Use the defaults: $15,000 of premiums paid across the year and $80,000 of business net profit, at a 22 percent marginal rate. The deduction is the lesser of premiums paid and your net self-employment earnings, and $15,000 sits comfortably below $80,000, so the full $15,000 is deductible. At a 22 percent marginal rate, that removes $15,000 from taxable income and saves $3,300 in federal income tax. For a freelancer or consultant carrying a family policy off the exchange, that is a real offset against premiums that often feel punishing.
The eligibility test that disqualifies many
The deduction has a sharp gatekeeper. You cannot take it for any month in which you were eligible to participate in a subsidized health plan through your own employer or your spouse's employer. Eligibility is what counts, not enrollment, so if your spouse's job offers family coverage you could have joined, you lose the deduction for those months even if you declined that plan and bought your own. This catches a lot of dual-income households by surprise. The deduction is available to sole proprietors filing Schedule C, partners, and more-than-2-percent S-Corp shareholders, with the S-Corp version requiring the premiums to be reported as wages on your W-2.
Where this deduction stops short
Two limits keep it from being a free-for-all. First, the deduction cannot exceed your net self-employment earnings; it cannot create a loss, and if premiums run higher than profit, the excess is simply not deductible here. The real statutory ceiling is marginally tighter than the plain profit figure this tool uses, because it is measured against net earnings after subtracting the deductible half of self-employment tax and any retirement plan contributions, so treat the output as a close estimate rather than the exact maximum. Second, and this is the mistake worth flagging, the deduction reduces your income tax but not your self-employment tax. The 15.3 percent SE tax is computed on your Schedule C profit before this deduction is applied, so it does not shrink your Social Security and Medicare bill at all. A practical tip: if your income is also low enough to qualify for a premium tax credit on a marketplace plan, the interaction between that credit and this deduction is circular and genuinely tricky, so use the IRS worksheet or software to avoid double-counting.
Can I deduct premiums for months before my business was profitable?
The deduction is capped by net profit for the year as a whole, not month by month, but you must have self-employment income to support it. If the business showed no net profit for the year, there is nothing to deduct against and the premiums fall to a potential itemized medical deduction instead, which is far less valuable.
Does this work alongside an HSA contribution?
Yes. If your self-employed plan is a qualifying high-deductible health plan, you can deduct the premiums here and separately deduct your HSA contribution above the line as well. They are two distinct deductions, and a self-employed person with an eligible plan can claim both in the same year.