Small Business Taxes for LLC Owners: The Complete 2026 Guide
Small business taxes for LLC owners in 2026: self-employment tax, the QBI deduction, four new Schedule 1-A deductions, quarterly payments, and deadlines.
Finance
Self-employed health insurance in 2027: premiums up 14%, the returning subsidy cliff at 400% FPL, and the deduction rule your spouse's job can disqualify.
Self-employed health insurance costs are rising again for 2027. Insurers have filed for a median increase near 14%, with some requesting 30%, and that lands on top of a brutal 2026 in which out-of-pocket premiums jumped an average of 58% after the enhanced subsidies expired. If you buy your own coverage, nobody absorbs any part of that for you.
Two rules decide what you actually pay. The subsidy cliff has returned, meaning one dollar of income above 400% of the federal poverty level erases your entire premium tax credit. And the self-employed health insurance deduction, which lets you write off premiums above the line, gets disqualified by an employer plan being merely available to you or your spouse, whether or not either of you enrolls. This guide covers both, plus the income planning that has to happen before open enrollment opens November 1, 2026.
Rate filings are requests, not final numbers. State regulators review them, and the approved figures usually land somewhat below what insurers asked for. Even so, the direction is settled: double-digit increases are the base case for 2027, and the range across insurers runs from roughly 10% to more than 30%.
Geography matters enormously. Two people with identical income and identical plans can see wildly different increases depending on which state and which rating area they live in, because the filings are made insurer by insurer and market by market. National averages tell you almost nothing about your renewal notice. The only number that matters is the premium on a plan you can actually buy in your county, so compare self-employed health insurance options during open enrollment rather than auto-renewing.
An employee at a mid-size company sees a premium increase too, but their employer typically covers 70% to 80% of the premium and eats most of the change. A freelancer, consultant, or single-member LLC owner buying self-employed health insurance pays 100% of it directly.
That difference compounds with the tax treatment. Employer premiums come out of an employee’s pay before income and payroll taxes apply. Self-employed premiums get deducted after the fact, and only for income tax purposes, so the money still passes through self-employment tax on its way out. Two people paying the same $600 monthly premium are not paying the same real cost.
Health insurance is frequently the single largest line item in a solo business’s budget, ahead of software, equipment, and professional fees combined. Treating the November enrollment window as a serious annual financial decision, rather than an administrative chore, is worth several thousand dollars in most years.
Between 2021 and 2025, enhanced subsidies capped marketplace premiums at a percentage of income with no upper income limit. That expired at the end of 2025, and the pre-2021 structure came back: above 400% of the federal poverty level, the premium tax credit on self-employed health insurance is zero.
For 2027 coverage, a single person in the continental United States qualifies up to roughly $63,840, slightly higher than the 2026 figure because the poverty guidelines rise each year. A family of four sits somewhere near $132,000 to $136,000 based on current projections. Confirm the exact figure for your household size when the guidelines publish, because the number is the entire game.
The word cliff is literal. Earn $63,840 and you might receive several thousand dollars of annual credit. Earn $63,900 and you receive nothing. That $60 of extra income can cost more than $5,000, an effective marginal tax rate in the thousands of percent for the dollars that cross the line.
Anyone buying self-employed health insurance has more control over modified adjusted gross income than almost anyone else, and this is where that control pays for itself.
The most powerful lever is retirement contributions. A solo 401(k) allows substantial employee deferrals plus an employer contribution calculated from net earnings, and every dollar contributed lowers MAGI. Someone projecting $71,000 of income who contributes $9,000 lands under the cliff and keeps the credit. A SEP-IRA does similar work with a simpler setup and less flexibility.
Other levers help at the margin. Deductible business equipment bought in December, an HSA contribution if you hold a qualifying high-deductible plan, and the deductible half of self-employment tax all reduce MAGI. Deferring a December invoice into January shifts income across the year boundary, though it moves the problem rather than solving it if next year runs hot too.
Leave yourself room. A buffer of $2,000 to $3,000 below the threshold protects against a late client payment, an unexpected 1099, or a bookkeeping correction discovered in February. Landing exactly on the line is a bad plan, because the penalty for missing by a little is identical to missing by a lot: you repay the entire advance credit when you file.
Build the projection before November rather than during enrollment. That means a realistic month-by-month income forecast for 2027, including any income you cannot control, and it pairs naturally with the work you already do for quarterly estimated taxes.
Separate from any subsidy, the tax code lets self-employed people deduct premiums above the line. The deduction covers medical, dental, and qualifying long-term care premiums for you, your spouse, your dependents, and children under 27.
Above the line matters here. You claim it whether or not you itemize, and it reduces adjusted gross income directly, which then feeds into other calculations including the subsidy cliff. That makes it one of the few deductions that both saves tax and improves your position on other tests.
Who can claim it: sole proprietors reporting net profit on Schedule C, partners in a partnership, members of an LLC taxed as a partnership or sole proprietorship, and shareholders owning more than 2% of an S corporation. Each follows slightly different mechanics, and the S corp route is the fussiest.
The ceiling is your net self-employment income. Premiums of $9,600 against a net profit of $40,000 deduct fully. The same premiums against a net profit of $6,000 deduct only $6,000, and the deduction never creates or increases a loss. The remainder does not carry forward, so a thin-profit year permanently wastes part of it.
One consolation and one disappointment. The deduction reduces income tax and, unlike most business expenses, it does not reduce self-employment tax, because it comes off after net earnings are computed. Anyone modeling their total burden should account for that, the same way our guide to setting aside money for taxes handles it.
This disqualifier costs more people the deduction than any other, and it surprises them because the rule tests availability rather than enrollment.
You cannot claim the self-employed health insurance deduction for any month in which you or your spouse were eligible to participate in an employer-subsidized health plan. Declining the coverage changes nothing. Choosing a marketplace plan you prefer changes nothing. If your spouse’s employer offered a plan they could have joined, those months are out.
The test runs month by month, which cuts both ways. A spouse who leaves a job in June makes the remaining months eligible, so the deduction covers July through December premiums even though the first half of the year does not qualify. Track the transition date rather than treating the year as all or nothing.
Couples where one spouse holds a traditional job and the other freelances should price this deliberately. Sometimes joining the employer plan costs less overall than buying marketplace coverage that carries no deduction. Sometimes the reverse holds, particularly when the employer contributes little toward family coverage. Run both scenarios with real quotes rather than assuming, because self-employed health insurance only wins when the deduction survives.
Claiming both a premium tax credit and the self-employed health insurance deduction creates a genuine mathematical loop. The deduction lowers your MAGI. Lower MAGI increases your premium tax credit. A larger credit reduces the net premium you actually paid, which reduces the deductible amount, which raises MAGI again.
The IRS provides two acceptable approaches: an iterative method that repeats the calculation until the numbers stabilize, and a simplified alternative that gets close enough without endless loops. Publication 974 walks through both.
Most tax software handles this automatically once you enter both the Schedule C and the Form 1095-A, and most preparers do it without comment. The reason to understand it anyway is planning. When you model whether an extra $5,000 of income pushes you over the cliff, the interaction between deduction and credit shifts the answer, and a rough mental calculation that ignores it can put you on the wrong side of a $5,000 decision.
Shareholders owning more than 2% cannot claim self-employed health insurance the way a sole proprietor does. The corporation must pay or reimburse the premiums, then include that amount in box 1 of the shareholder’s W-2 as wages. The shareholder then takes the self-employed health insurance deduction on their personal return.
Skipping the W-2 step forfeits the deduction. The premiums stay a corporate expense but the individual loses the personal deduction, which is a worse outcome than either party expects. Most payroll platforms have a specific setting for two-percent shareholder health insurance, and it is not enabled by default.
Owners weighing whether the S corp structure makes sense at all should read that decision alongside this one, since health insurance handling is one of the ongoing compliance costs covered in our breakdown of when an S corp election is worth it. The premiums included in W-2 wages also affect the reasonable compensation analysis.
Marketplace coverage is the default, not the only option. Price these against each other before you renew.
| Option | Best for | Watch out for |
|---|---|---|
| Marketplace plan with subsidy | Income under 400% FPL | The cliff, and repaying advance credits |
| Marketplace plan, full price | Income over the cliff | Compare bronze and silver carefully |
| Spouse’s employer plan | Households with one W-2 earner | Kills the deduction for those months |
| COBRA continuation | Recently left a job | Expensive, time-limited |
| Professional association plan | Members of qualifying groups | Coverage varies, verify networks |
| Health care sharing ministry | Cost-sensitive, healthy households | Not insurance, no legal guarantee of payment |
Health care sharing ministries deserve a specific warning. They are not insurance, they carry no obligation to pay claims, and premiums paid to them do not qualify for the self-employed health insurance deduction. People choose them for the price and occasionally discover the difference at the worst possible moment.
If your income clears the cliff and no subsidy is available, compare metal tiers seriously. Bronze plans carry lower premiums with higher deductibles, and for someone paying full price with an HSA-qualified option, the combination can beat a silver plan that was only attractive because of cost-sharing reductions you no longer receive.
Pairing an HSA with self-employed health insurance gives you a rare triple advantage: contributions reduce MAGI, growth is untaxed, and withdrawals for medical costs are untaxed. Lowering MAGI matters twice over when you are managing distance from the subsidy cliff.
The trade is real risk exposure. Higher deductibles mean more out-of-pocket spending before coverage engages, which suits healthy households with cash reserves and punishes those managing a chronic condition or expecting a major medical event. Check whether your plan carries the HSA-qualified designation before assuming a high deductible is enough, since the two are not the same thing.
Yes. Premiums for you, your spouse, dependents, and children under 27 are deductible above the line, limited to your net self-employment income and unavailable for months when an employer plan was available to you or your spouse.
Four hundred percent of the federal poverty level, roughly $63,840 for a single person in the continental US. Above that, the premium tax credit is zero.
Yes. Eligibility disqualifies you for those months regardless of whether you enroll. The test is availability, not participation.
No. The self-employed health insurance deduction reduces income tax only, because it applies after net earnings from self-employment are calculated.
November 1, 2026 through January 15, 2027. Enroll by December 15 for coverage beginning January 1.
You repay the excess advance premium tax credit when you file. Crossing 400% FPL means repaying the entire year’s credit, which is why a buffer matters.
Yes, if the corporation pays or reimburses the premiums and includes them in box 1 of the shareholder’s W-2. Skipping that step forfeits the deduction.
No. They are not insurance premiums and do not qualify for the self-employed health insurance deduction.
Sources: KFF, 2027 preliminary rate filings · healthinsurance.org, return of the subsidy cliff · IRS Publication 974, premium tax credit · HealthCare.gov