Tax Deductions
Covers 2026 standard and itemized tax deductions, common deductible expenses, and strategies to reduce taxable income.
TL;DR
- 01Choose standard or itemized deductions by comparing which reduces taxable income more.
- 02Claim above-the-line deductions to lower AGI before other deductions apply.
- 03Track deductible expenses year-round to avoid missing write-offs at filing time.
Tips
- 01Bunch two years of charitable donations into one year if your itemized deductions are close to the standard deduction.
- 02Contribute to an HSA for a triple tax advantage, since contributions, growth, and qualified withdrawals are all tax-free.
Warnings
- 01The SALT deduction caps state and local tax write-offs at $40,400 per return for 2026, with a phase-down for higher earners.
- 02Itemized deductions only help if your total qualifying expenses exceed the standard deduction for your filing status.
How Tax Deductions Work
Tax deductions reduce your taxable income, which lowers the amount of income subject to tax. They are not dollar-for-dollar savings like credits.
- Above-the-line deductions: Reduce adjusted gross income (AGI) directly. Available to all filers regardless of whether they itemize. Examples include student loan interest, HSA contributions, and self-employed health insurance premiums.
- Below-the-line deductions: Taken after AGI is calculated. Taxpayers choose between the standard deduction or itemized deductions — whichever is larger.
- Impact on tax owed: A $10,000 deduction for a filer in the 22% bracket reduces taxes owed by $2,200.
2026 Standard Deduction
| Filing Status | Standard Deduction |
|---|---|
| Single | $16,100 |
| Married Filing Jointly | $32,200 |
| Head of Household | $24,150 |
| Married Filing Separately | $16,100 |
Most taxpayers take the standard deduction because it exceeds their total itemized deductions. Itemizing is generally worthwhile only when total qualifying expenses exceed the standard deduction amount. Taxpayers 65 or older can also claim an additional $2,050 if unmarried or $1,650 per condition if married, plus the OBBBA senior bonus deduction of $6,000 (2025–2028, subject to a MAGI phase-out).
Common Itemized Deductions
| Deduction | Limit or Threshold | Notes |
|---|---|---|
| Medical & Dental Expenses | Expenses above 7.5% of AGI | Only the excess above the threshold is deductible |
| State & Local Taxes (SALT) | Up to $40,400 per return | Includes state income, sales, and property taxes; phases down above $505,000 MAGI |
| Mortgage Interest | Interest on up to $750,000 of debt | Applies to primary and one secondary residence |
| Charitable Contributions | Generally up to 60% of AGI | Must be to qualified organizations; keep records |
| Casualty & Theft Losses | Federally declared disaster areas only | Subject to AGI thresholds |
Above-the-line deductions (available to all filers):
- Student loan interest: Deduct up to $2,500 per year (income limits apply).
- HSA contributions: Up to $4,400 (self-only) or $8,750 (family) in 2026.
- IRA contributions: Up to $7,500 ($8,600 if age 50+) may be deductible.
- Self-employed health insurance: Full premiums may be deductible.
Strategies to Maximize Deductions
- Bunch itemized deductions: Concentrate charitable gifts, medical expenses, or other deductible costs into one tax year to push totals above the standard deduction threshold.
- Max retirement contributions: Traditional 401(k) contributions up to $24,500 in 2026 reduce taxable income directly through payroll. Traditional IRA contributions may also be deductible.
- Contribute to an HSA: Triple tax advantage — contributions are deductible, growth is tax-free, and qualified withdrawals are tax-free.
- Track business expenses: Self-employed individuals can deduct ordinary and necessary business costs, including home office, equipment, and vehicle use.
- Review above-the-line deductions first: These reduce AGI before you decide whether to itemize, and lower AGI can improve eligibility for other credits and deductions.
Tools and Resources
| Tool | Purpose |
|---|---|
| IRS Publication 17 | Comprehensive guide to individual tax deductions |
| IRS Interactive Tax Assistant | Check eligibility for specific deductions |
| IRS Free File | Free federal filing for taxpayers under income limits |
| TurboTax / H&R Block | Guided deduction identification and comparison |
Consult a tax professional or CPA if your deductions are complex — especially for large charitable gifts, business expenses, or rental property deductions.
FAQ
Tax deductions reduce your taxable income, which lowers the amount of income subject to tax. They are not dollar-for-dollar savings like credits.
Claim above-the-line deductions to lower AGI before other deductions apply. These reduce AGI directly and are available to all filers, whether or not they itemize.
The standard deduction is a fixed amount based on your filing status, while itemizing totals specific deductible expenses like mortgage interest and charitable gifts. You should choose whichever produces the larger deduction, since only one option is allowed per return.
Yes, above-the-line deductions like student loan interest and HSA contributions reduce your adjusted gross income (AGI) before you choose between the standard deduction and itemizing. All filers can claim them regardless of which option they pick.
Talk to a CPA or tax professional if your deductions are complex, such as large charitable gifts, business expenses, or rental property write-offs. A professional can confirm you are capturing every deduction you qualify for.