Standard Deduction vs. Itemizing: How to Choose
By the FiscalData.US editorial team · Updated October 2026 · 8 min read · Sources & methodology
Every federal return gives you a choice: subtract the flat standard deductionfor your filing status, or add up specific eligible expenses and itemize on Schedule A. You take whichever is larger. Since the standard deduction roughly doubled in 2018, the large majority of filers take it — but homeowners in high-tax states, big charitable givers and people with large medical bills should still run the numbers.
What the Standard Deduction Is
The standard deduction is a fixed amount set by Congress and adjusted for inflation each year. It depends on filing status (single, married filing jointly, head of household, married filing separately), and there is an additional amount if you or your spouse are 65 or older or blind. No receipts are needed. The current figures used by our tools are listed on our methodology page, and the official numbers appear in the IRS Form 1040 instructions.
What You Can Itemize
| Category | Key rules |
|---|---|
| State and local taxes (SALT) | Income or sales tax plus property tax, subject to an annual cap |
| Mortgage interest | Interest on acquisition debt for a main or second home, within loan limits |
| Charitable gifts | Cash and property to qualified organizations, with AGI-based limits |
| Medical and dental expenses | Only the portion above 7.5% of adjusted gross income |
| Casualty and theft losses | Generally only losses in federally declared disasters |
Many expenses people expect to deduct are not itemized deductions today: unreimbursed employee job expenses, tax-preparation fees and investment advisory fees were suspended for individual taxpayers. Self-employed business costs are deducted on Schedule C instead, regardless of whether you itemize.
A Simple Decision Test
- Add your SALT (after the cap), mortgage interest, charitable gifts and the deductible part of medical costs.
- Compare the total with your standard deduction.
- If the itemized total is higher, itemize; the difference times your marginal rate is roughly your tax saving.
- If it is lower, take the standard deduction — you lose nothing by not itemizing.
Example: a married couple pays $9,000 in mortgage interest, $10,000 of capped SALT and gives $3,000 to charity, for $22,000. If their standard deduction is higher than that, itemizing would actually increase their tax. Learn how deductions interact with rates in how tax brackets work.
The Bunching Strategy
If your itemized deductions hover just below the standard deduction, consider "bunching": concentrating two years of charitable donations into one year (often through a donor-advised fund) so you itemize in that year and take the standard deduction in the next. Prepaying a January property-tax bill in December can work the same way, as long as it stays within the SALT cap and the bill has been assessed.
Deductions You Get Either Way
"Above-the-line" adjustments reduce income whether or not you itemize: traditional IRA and HSA contributions, half of self-employment tax, student loan interest (within limits) and educator expenses. These lower your adjusted gross income, which can also unlock credits. See our HSA calculator for one of the most valuable.
State Returns
States set their own rules. Some follow the federal choice, some require you to itemize on the state return only if you did federally, and others have their own standard deduction or none at all. Check your state's revenue department instructions before filing.
Frequently Asked Questions
Can I itemize if my spouse takes the standard deduction?
If you file separately and one spouse itemizes, the other must itemize too.
Does buying a home automatically mean I should itemize?
No. With a higher standard deduction, many new homeowners still come out ahead taking it.
Do I need receipts for the standard deduction?
No. Itemized deductions require records; the standard deduction does not.
Sources & legal references
Figures in this guide were checked by the FiscalData.US editorial team against these primary sources and, where relevant, state revenue department notices. See our methodology & update policy.
- IRS Schedule A (Form 1040) — Itemized Deductions
- 26 U.S.C. §63 — Standard deduction
- IRS Rev. Proc. 2025-32 — 2026 inflation adjustments (brackets, standard deduction, credits)
- IRS Rev. Proc. 2024-40 — 2025 inflation adjustments (prior-year comparison)
- Public Law 119-21 (One Big Beautiful Bill Act, July 2025)
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FiscalData.us provides estimates for informational purposes only and is not financial or tax advice. The information in this guide is general in nature, does not consider your personal circumstances and does not create a client relationship. FiscalData.US is not responsible for decisions made based on this content.