The honest answer depends entirely on how the money left your hands. The same $600 a month can be fully deductible, partly deductible, or not deductible at all, based on nothing more than whether it passed through your taxable income on the way out.
There are exactly three routes. Most households qualify for one of them or none. Everything below was checked against IRS publications and revenue procedures on September 6, 2026, and every figure is labeled by tax year, because the 2025 return you might still be amending uses different numbers than the 2026 return you will file in spring 2027.
The Three Routes, Side by Side
| Route | Where it lands | The catch | Who it fits |
|---|---|---|---|
| Itemized medical expense deduction | Schedule A (Form 1040), line 1 | Only costs above 7.5% of AGI, and only if you itemize | Retirees, big medical years, anyone paying full-freight premiums with after-tax money |
| Self-employed health insurance deduction, IRC section 162(l) | Schedule 1 (Form 1040), line 17 | Capped at earned income from the business, blocked in any month you could join a subsidized employer plan | Schedule C and F filers, partners, more-than-2% S corporation shareholders |
| Pre-tax payroll premiums, Section 125 cafeteria plan | Nowhere. Already excluded from wages | Cannot be deducted a second time | Most employees with job-based coverage |
The third row is where most people actually sit, and it is the row that generates the most confusion. Nothing is missing from your return. The tax break already happened, silently, in every paycheck.
Route 1: Schedule A and the 7.5% Floor
IRS Publication 502 for 2025 puts it in one sentence: you can generally deduct on Schedule A only the amount of your medical and dental expenses that is more than 7.5% of your AGI. The 2025 Instructions for Schedule A say the same thing, and IRS Tax Topic 502, last updated May 20, 2026, repeats it. That floor is permanent law, not a temporary provision, and it applies to tax year 2025 and tax year 2026 alike.
Premiums qualify as medical expenses. Publication 502 says you can include premiums you pay for policies that cover medical care, listing hospitalization, surgical services, X-rays, prescription drugs and insulin, dental care, and long-term care subject to additional limits.
Here is the arithmetic for tax year 2025. AGI of $60,000 sets the floor at $4,500. If you paid $9,600 of after-tax premiums plus $1,900 in doctor visits and prescriptions, your total medical expense is $11,500 and the deductible piece is $7,000.
That $7,000 is not a $7,000 tax cut. It is $7,000 added to your itemized deductions, and it only does anything if those itemized deductions beat your standard deduction. The full rules on what counts as a medical expense are in the medical expense tax deduction guide.
Route 2: The Above-the-Line Self-Employed Deduction
If you had a net profit reported on Schedule C or Schedule F, net earnings from self-employment on a Schedule K-1 from a partnership, or wages from an S corporation in which you were a more-than-2% shareholder, the 2025 Instructions for Form 7206 say you may be able to deduct what you paid for medical, dental and vision insurance and qualified long-term care insurance on Schedule 1 (Form 1040), line 17.
This route is far better than Schedule A. There is no 7.5% floor and no need to itemize. It reduces AGI directly, which can also pull you under other income-tested thresholds.
Two limits bite. The deduction cannot exceed your earned income from the trade or business the plan is established under. And the Form 7206 instructions say to exclude amounts for any month you were eligible to participate in a health plan subsidized by your employer, your spouse’s employer, or the employer of your dependent or your child under 27, even if you did not actually enroll. The full mechanics are in the self-employed health insurance deduction guide.
Anything you cannot take on line 17 is not lost. The Form 7206 instructions say medical insurance payments not deductible on Schedule 1, line 17 can be included as medical expenses on Schedule A if you itemize.
Route 3: Pre-Tax Payroll Premiums Are Not Deductible Again
Publication 502 is direct here: do not include in your medical and dental expenses any insurance premiums paid by an employer-sponsored health insurance plan unless the premiums are included on your Form W-2.
The publication’s own example is a federal employee in the FEHB premium conversion plan whose share of the premium is paid by a pre-tax reduction in salary. Because the employee’s premiums are paid with money that is never included in gross income, they cannot be deducted.
That is what a Section 125 cafeteria plan does. Your share of the premium comes out before federal income tax and before Social Security and Medicare tax, which is a better deal than a deduction, since a deduction never touches payroll tax. The 2025 KFF Employer Health Benefits Survey, released October 22, 2025, found the average annual premium for employer coverage was $9,325 for single and $26,993 for family coverage, with covered workers contributing $1,440 and $6,850 respectively. For most of those workers, that contribution is already sheltered.
The same logic knocks out other pre-tax health money. Publication 502 says you cannot include amounts you contribute to a health savings account, cannot include expenses paid with a tax-free HSA distribution, cannot include expenses reimbursed by a health reimbursement arrangement, and cannot include amounts fully reimbursed by a flexible spending arrangement funded with pre-tax income. For tax year 2026, Revenue Procedure 2025-32 sets the health FSA salary reduction limit at $3,400 with a $680 carryover, up from $3,300 and $660 for tax year 2025. If you are weighing those accounts, start with HSA vs. FSA.
Marketplace Premiums Count Only Net of Subsidy
Publication 502 says you cannot include the amount of health insurance premiums paid by or through the premium tax credit, and you cannot include any advance payments of the credit that you did not have to pay back. Advance payments you did have to repay can be included.
Its 2025 example: premiums of $8,700, advance credit payments of $4,200, your own payments of $4,500, an allowed credit of $3,600 and $600 of excess advance payments repaid. You are treated as paying $5,100, which is $8,700 minus the $3,600 allowed credit, and $5,100 is what goes on Schedule A, line 1. In its second example, an allowed credit of $4,900 leaves only $3,800 deductible.
Note what that means. The bigger your subsidy, the smaller your deduction. Reconciliation on Form 8962 determines the final credit, so the deduction cannot be finished until the credit is.
Medicare, COBRA and Long-Term Care Premiums
Medicare. Publication 502 for 2025 says Part B premiums are a medical expense and Part D premiums can be included. Part A premiums count only if you were not covered under Social Security and voluntarily enrolled. The payroll tax paid for Part A is never a medical expense, and the publication adds that taxes imposed by any governmental unit, such as Medicare taxes, are not insurance premiums.
COBRA. Continuation premiums are ordinary after-tax medical insurance premiums, so they ride the general Schedule A rule above. What they are not is above-the-line deductible, because the plan is established under a former employer, not under your trade or business. Details in are COBRA premiums tax deductible.
Long-term care. Qualified long-term care insurance premiums are includible only up to an age-based cap. For tax year 2025, the Schedule A instructions and Publication 502 both list $480 at age 40 or under, $900 for 41 to 50, $1,800 for 51 to 60, $4,810 for 61 to 70, and $6,020 at 71 or older. Revenue Procedure 2025-32 raises those to $500, $930, $1,860, $4,960 and $6,200 for tax year 2026. More in is long-term care insurance tax deductible.
The Itemize Versus Standard Deduction Math
This is where most Schedule A medical deductions die. Public Law 119-21 made the higher standard deduction permanent and raised the base amounts, which Revenue Procedure 2025-32 records at section 2.08 and then applies.
| Filing status | Tax year 2025 | Tax year 2026 |
|---|---|---|
| Single or married filing separately | $15,750 | $16,100 |
| Head of household | $23,625 | $24,150 |
| Married filing jointly or surviving spouse | $31,500 | $32,200 |
The IRS confirmed the 2026 figures in IR-2025-103 on October 9, 2025. Add the additional standard deduction for being 65 or older or blind: $1,600 per qualifying condition for tax year 2025, or $2,000 if you are unmarried and not a surviving spouse, and $1,650 or $2,050 for tax year 2026. As of September 6, 2026 the IRS has not published the general inflation adjustments for tax year 2027, so treat any 2027 figure you see elsewhere as an estimate.
One more wrinkle for older filers. The IRS says the new enhanced deduction for seniors, $6,000 per eligible individual aged 65 or older for tax years 2025 through 2028 and phasing out above $75,000 of modified AGI ($150,000 joint), is available to eligible taxpayers whether they itemize or not. It does not make itemizing easier or harder. It stacks on top either way.
Run the comparison honestly. A single filer for tax year 2026 needs itemized deductions above $16,100 before the first dollar of medical expense saves anything, and state taxes and mortgage interest usually have to do most of that lifting.
The Bottom Line
If your premiums come out of your paycheck pre-tax, stop looking. You already got the break, and you got a better version of it than a deduction.
If you are self-employed, take Route 2. It skips the AGI floor entirely and works whether or not you itemize. If you are shopping first, self-employed health insurance costs covers what those plans actually run.
Everyone else lands on Schedule A, where the deduction only shows up in a genuinely expensive year. If you are staring at bills big enough to clear 7.5% of AGI, the deduction is worth chasing, but so is cutting the bill itself. Start with negotiating the bill, then deduct whatever is left. This page explains the rules, not your return. For your own numbers, work from the IRS instructions for your tax year or use a preparer.