Tax Deductions You're Probably Missing in 2026

The IRS isn't going to call you up and remind you about deductions you missed. Every dollar of legitimate deductions you overlook is money out of your pocket. And it happens more often than most people realize — even with tax software that asks guiding questions.

This guide covers the most commonly missed deductions and credits for ordinary Americans in 2026. Some will apply to you; others won't. But if even one or two are new to you, this is worth your time.

First: Standard Deduction vs. Itemizing

Before diving in, a critical concept: for 2024 taxes, the standard deduction is:

• Single: $14,600
• Married Filing Jointly: $29,200
• Head of Household: $21,900

If your itemizable deductions don't exceed these amounts, the standard deduction is better. Since the Tax Cuts and Jobs Act of 2017 nearly doubled the standard deduction, about 90% of filers now take it.

This means many traditional itemized deductions (mortgage interest, state taxes, charitable giving) only matter if you have enough to exceed the threshold. If you're taking the standard deduction, focus on above-the-line deductions and credits — those reduce your taxable income regardless of whether you itemize.

Above-the-Line Deductions (Everyone Can Use These)

These deductions reduce your Adjusted Gross Income (AGI) even if you take the standard deduction.

Student Loan Interest Deduction

If you paid interest on qualified student loans, you can deduct up to $2,500 per year. This phases out at higher incomes ($75,000-$90,000 single, $155,000-$185,000 married filing jointly for 2024).

Your loan servicer should send a Form 1098-E showing how much interest you paid. Many people forget this one, especially younger earners.

Traditional IRA Contributions

Contributions to a Traditional IRA may be fully or partially deductible depending on your income and whether you (or your spouse) have a workplace retirement plan.

For 2024, the IRA contribution limit is $7,000 ($8,000 if 50+). If you're eligible for the deduction, this directly reduces your taxable income.

Note: Roth IRA contributions are not deductible (you pay tax now in exchange for tax-free growth later).

Health Savings Account (HSA) Contributions

If you have a High Deductible Health Plan (HDHP), contributions to an HSA are fully deductible regardless of income. For 2024:

• Individual coverage: up to $4,150
• Family coverage: up to $8,300
• 55+ catch-up: additional $1,000

HSAs are arguably the best tax-advantaged account available — contributions are deductible, growth is tax-free, and withdrawals for qualified medical expenses are tax-free. It's the only triple tax advantage in the US tax code.

Self-Employed Health Insurance Premiums

If you're self-employed and pay for your own health insurance, 100% of the premiums are deductible as an above-the-line deduction. This includes dental and long-term care insurance premiums.

This is frequently missed by freelancers and contractors who don't realize it's separate from (and in addition to) Schedule C business deductions.

Self-Employment Tax Deduction

If you're self-employed, you pay both the employee and employer portions of Social Security and Medicare taxes — effectively 15.3% on net self-employment income. You can deduct half of this self-employment tax from your gross income.

This deduction is automatic in tax software, but knowing it exists helps you understand why your effective tax rate isn't as punishing as it might first appear.

Educator Expenses

K-12 teachers, instructors, counselors, and aides who work at least 900 hours per school year can deduct up to $300 ($600 married filing jointly if both are educators) for unreimbursed classroom expenses — books, supplies, software, professional development.

Small amount, but easy and automatic if you qualify.

Credits (Even Better Than Deductions)

Credits reduce your tax bill dollar-for-dollar, making them more valuable than deductions that only reduce taxable income.

Earned Income Tax Credit (EITC)

One of the most valuable credits available — and one of the most commonly missed. The EITC provides up to $7,830 for families with three or more children (2024). Even taxpayers without children may qualify for a smaller credit.

Income limits for 2024:

• No children: up to $17,640 single
• One child: up to $46,560 single
• Two children: up to $52,918 single
• Three+ children: up to $56,838 single

Married filing jointly limits are higher. The IRS estimates millions of people who qualify for EITC don't claim it, leaving billions of dollars unclaimed annually.

Use the IRS EITC Assistant (irs.gov/credits-deductions/individuals/earned-income-tax-credit) to check eligibility.

Child and Dependent Care Credit

If you paid for childcare, after-school programs, or summer day camps so you could work, you may qualify for this credit. It covers 20-35% of expenses up to $3,000 for one child or $6,000 for two or more.

Commonly missed: This also applies to care for a disabled spouse or dependent who can't care for themselves.

American Opportunity Tax Credit (AOTC)

For the first four years of post-secondary education, you can claim up to $2,500 per eligible student — 100% of the first $2,000 in qualified education expenses and 25% of the next $2,000. 40% of the credit is refundable (up to $1,000 back even if you owe no tax).

Income limits: phases out at $80,000-$90,000 (single) or $160,000-$180,000 (married filing jointly).

Lifetime Learning Credit

If you're beyond the first four years of college, taking graduate courses, or taking a single class to improve job skills, the Lifetime Learning Credit covers 20% of the first $10,000 in qualified education expenses — up to $2,000.

Unlike AOTC, there's no limit on the number of years you can claim this.

Saver's Credit

Low and middle-income taxpayers who contribute to a 401(k), IRA, or other retirement account may qualify for the Saver's Credit — 10-50% of up to $2,000 in contributions.

For 2024, single filers with AGI up to $38,250 (up to $57,375 married filing jointly) qualify for some level of credit. This is commonly missed by people who assume they earn too little to benefit from tax planning.

Child Tax Credit

Up to $2,000 per qualifying child under 17, with up to $1,700 refundable (Additional Child Tax Credit). Phases out above $200,000 single ($400,000 married filing jointly).

Most parents know about this one, but the refundable portion is sometimes missed.

Itemized Deductions (If You Have Enough to Exceed the Standard Deduction)

State and Local Taxes (SALT) — Capped at $10,000

Property taxes plus state income or sales taxes, capped at $10,000 ($5,000 married filing separately). In high-tax states or for homeowners with significant property taxes, this can be meaningful.

Mortgage Interest

Interest on loans up to $750,000 for a primary or secondary home purchased after December 2017. If your mortgage balance is close to or under $750,000 and you have other deductions, you may benefit from itemizing.

Charitable Contributions

Cash donations to qualified nonprofits are deductible if you itemize. Also deductible: non-cash donations (clothing, household items to Goodwill), mileage driven for charity (14 cents/mile in 2024), and out-of-pocket expenses when volunteering.

Important: Non-cash donations over $500 require Form 8283. Donations over $250 require written acknowledgment from the charity.

Medical Expenses Over 7.5% of AGI

Only the portion of medical expenses exceeding 7.5% of your AGI is deductible, so this only helps people with very high medical bills relative to income. But if you had a major health event, it's worth calculating.

Includes: health insurance premiums (if not already deducted elsewhere), prescription drugs, dental, vision, long-term care, transportation to medical appointments, and some home modifications for medical necessity.

Commonly Missed Situations

Job search expenses: No longer deductible at the federal level since 2018, but check your state — many states still allow this deduction.

Home office deduction (self-employed only): If you're self-employed and use part of your home exclusively and regularly for business, you can deduct a portion of housing costs. W-2 employees cannot take this deduction since 2018.

Jury duty pay turned over to employer: If your employer paid your full salary during jury duty and required you to turn over your jury pay to them, you can deduct the amount turned over.

Gambling losses: If you report gambling winnings, you can deduct gambling losses up to the amount of winnings (if itemizing).

Energy efficiency credits: The Inflation Reduction Act created substantial credits for energy-efficient home improvements — up to $3,200/year for insulation, windows, heat pumps, and related improvements. Also up to $7,500 for new electric vehicles and $4,000 for used EVs.

The Bottom Line

Tax deductions and credits aren't loopholes — they're benefits the government explicitly created to incentivize certain behaviors (saving for retirement, getting education, raising children, improving energy efficiency). Not claiming them isn't noble; it's just leaving money on the table.

Go through this list with your tax software or preparer before filing. You may be surprised how much you can legitimately reduce your bill.