Calculate ACA subsidies, tax deductions, and total health insurance costs for self-employed individuals
When you go freelance or start a business, health insurance feels like it just got 3x more expensive. But that sticker price on the marketplace plan isn't what you'll actually pay. Between ACA subsidies and the self-employed health insurance deduction, your true cost can drop by half or more. The trick is knowing how to stack those benefits correctly.
If you're self-employed and your income lands between 100-400% of the federal poverty level, you qualify for marketplace subsidies. That's roughly $15,000 to $60,000 for a single person, or $31,000 to $124,000 for a family of four in 2025. Unlike W-2 employees with employer coverage, you don't get disqualified just because you run a business. The subsidy's based on your projected net self-employment income—the number after business deductions—so there's legitimate room to optimize here.
This deduction's a big deal because it's above-the-line, meaning you don't have to itemize to claim it. You can deduct 100% of premiums for yourself, your spouse, and dependents on Schedule 1. It reduces both your income tax and self-employment tax. The catch: you have to subtract any ACA subsidies you received, and you can't deduct more than your net self-employment profit. So if you made $30,000 and paid $12,000 in premiums after a $6,000 subsidy, you can deduct the remaining $6,000.
Here's where it gets interesting. You stack the ACA subsidy first, then the tax deduction on what's left. Let's say a $800/month plan costs $9,600 annually. You get a $4,800 subsidy. Now you're paying $4,800 out of pocket. That $4,800 is deductible, saving you roughly $1,440 in taxes if you're in the 30% effective bracket (federal + state + self-employment). Your true net cost? $3,360 for a plan that listed at $9,600. That's why marketplace plans beat COBRA for most self-employed folks.
COBRA lets you keep your old employer plan at 102% of the full premium—no subsidies, and it's only deductible as an itemized medical expense if you clear the 7.5% AGI threshold (most people don't). The marketplace offers subsidies based on your new self-employment income, plus full deductibility. For someone making $40,000 self-employed, a marketplace plan that costs $600/month might drop to $200/month after subsidies, then save another $1,800 in taxes. COBRA at $700/month? You're paying $8,400 with zero help.
We built this calculator to show you the actual number you'll pay after subsidies and tax savings, because the marketplace sticker price is basically meaningless for self-employed people who know how to use these benefits.