Above-the-Line Deductions: The 2026 List

Above-the-line deductions are the most valuable kind of deduction most taxpayers can take, for a simple structural reason: they reduce adjusted gross income, and AGI is the number dozens of other tax provisions test. A deduction that lowers AGI does not just cut taxable income; it can unlock IRA deductibility, shrink Medicare premium surcharges, and pull you under phase-out thresholds elsewhere in the return.

They also stack with the standard deduction. Itemized deductions only help past the $16,100 single / $32,200 married standard deduction for 2026; above-the-line adjustments help from dollar one, on top of whichever below-the-line deduction you take.

This page is the working list for 2026 with limits and eligibility, a worked example for a self-employed reader, and the boundary lines people blur, particularly the difference between an adjustment and a payroll exclusion.

The line is adjusted gross income. Gross income minus the adjustments on Schedule 1 equals AGI; from there you subtract the standard or itemized deduction (and any QBI deduction) to reach taxable income. Adjustments are "above" that line, so they are available to every eligible filer, itemizer or not, and they flow into every AGI-based test in the code.

Contrast the two things people confuse them with. Below-the-line deductions, itemized deductions like mortgage interest and charitable gifts, only matter to the extent they beat the standard deduction. Payroll exclusions, your 401(k) deferral and employer-plan health premiums, never appear in gross income at all; they are already out of your W-2 Box 1, so subtracting them again on Schedule 1 double counts.

Here are the adjustments that matter for most filers, with the 2026 figures per Rev. Proc. 2025-32, Notice 2025-67, and Rev. Proc. 2025-19.

Self-employed taxpayers get the deepest bench: the SE tax deduction is automatic, health insurance premiums move above the line, and an HSA rides alongside if coverage qualifies. Here is how the stack plays for a consultant with $100,000 of net Schedule C profit, family HDHP coverage, and $10,000 of self-paid health premiums.

Your 401(k) deferral is a payroll exclusion, not an adjustment; it never reached Box 1 wages, so there is nothing to deduct on the return. The same goes for employer-plan health premiums and FSA contributions run through a cafeteria plan. Claiming these on Schedule 1 is double dipping, and it is among the most common self-prepared return errors we clean up.

The QBI deduction is also not above the line: it reduces taxable income but not AGI, which matters precisely because AGI drives so many other tests. Charitable giving is generally itemized, though 2026 adds a modest non-itemizer charitable deduction of $1,000 single / $2,000 married filing jointly for cash gifts. And the suspended categories remain suspended: unreimbursed employee expenses and moving expenses (outside limited military cases) are not deductions for 2026.

The One Big Beautiful Bill Act reshaped the deduction landscape around this list, and two additions matter for ordinary filers starting in 2026. First, the non-itemizer charitable deduction: taxpayers who take the standard deduction can now deduct up to $1,000 single or $2,000 married filing jointly of cash charitable gifts. Cash only, and gifts to donor-advised funds and certain private foundations do not qualify. It is a below-the-line companion to the adjustments here, but it changes the math for the large majority of filers whose giving previously produced no deduction at all.

Second, the senior deduction: a separate $6,000 deduction per qualifying individual age 65 or older, available for tax years 2025 through 2028, to itemizers and non-itemizers alike. It phases out at 6% of MAGI above $75,000 for single filers and $150,000 for joint filers, and a Social Security number is required. For a retired couple both 65 or older under the thresholds, that is $12,000 of deduction layered on top of the standard deduction and the existing age-65 additional amounts.

The interaction is the planning point: because the senior deduction phases out on MAGI, the above-the-line adjustments on this page can protect it. A 66-year-old with consulting income who funds an HSA or deducts SE health premiums is not just taking those deductions; they may also be preserving senior-deduction dollars the phase-out would otherwise claw back at 6 cents per dollar of MAGI.

It is worth being concrete about what AGI and its modified cousins actually gate, because this is where an adjustment earns more than its face value. On the retirement side: traditional IRA deductibility phases out over MAGI bands for plan participants, and Roth IRA contribution eligibility phases out at $153,000 to $168,000 single and $242,000 to $252,000 joint for 2026. A taxpayer hovering at the edge of those bands can buy eligibility with an HSA contribution.

On the surcharge side: the 3.8% net investment income tax switches on at MAGI of $200,000 single and $250,000 joint, thresholds that are not indexed and therefore capture more taxpayers every year. Medicare IRMAA premium surcharges key off MAGI from two years prior, so a deduction taken this year quietly lowers premiums two years out. And the new OBBBA senior deduction phases out on MAGI as described above. Several credits run their own AGI-based phase-outs on top.

None of this means chasing deductions for their own sake; it means valuing them correctly. A $5,000 adjustment for someone mid-bracket and far from every threshold is worth its marginal rate, full stop. The same $5,000 for someone straddling the NIIT line, an IRMAA tier, or a phase-out band can be worth substantially more, and only a projection that maps the thresholds reveals which taxpayer you are this year.

Because AGI gates other provisions, sequencing matters. If you are just above the IRA deduction phase-out or a credit threshold, an HSA contribution or a larger SE health premium allocation may pull you under it, converting one deduction into two benefits. High earners watching Medicare IRMAA brackets two years ahead have the same calculus.

Distinguish this from MAGI, which several provisions use instead: MAGI starts from AGI and adds back specific items, and the add-back list changes by provision. Our MAGI vs. AGI guide maps which number each rule tests. The practical takeaway: know which line the provision you care about reads, then aim the deduction at it.