No — you cannot take the standard deduction and itemize on the same federal return. Under 26 U.S.C. § 63, you pick one method each tax year: either the flat-dollar standard deduction for your filing status or a line-by-line total of qualifying expenses on Schedule A.1Office of the Law Revision Counsel. 26 USC 63 – Taxable Income Defined You can calculate your tax both ways to see which is lower, but the return you file reflects only one. A separate category of deductions applies regardless of which you pick, and a few filers are barred from the standard deduction entirely.
How the One-or-the-Other Rule Works
Section 63 defines taxable income two different ways depending on the path you take. If you do not elect to itemize, taxable income equals your adjusted gross income minus the standard deduction. If you do elect to itemize, the standard deduction drops out and your Schedule A total replaces it.1Office of the Law Revision Counsel. 26 USC 63 – Taxable Income Defined Layering one on top of the other is not an option the statute contemplates.
Practically, this reduces to an annual comparison. Add up your potential itemized deductions. If they exceed the standard deduction for your filing status, itemize. If they do not, take the standard deduction. The choice resets every year, so a change in mortgage interest, medical bills, or charitable giving can tip the balance one way this year and the other way next year.
For tax year 2026, the standard deduction amounts are $16,100 for single or married filing separately, $32,200 for married filing jointly or a surviving spouse, and $24,150 for head of household.2Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026, Including Amendments From the One, Big, Beautiful Bill Filers who are 65 or older, blind, or both qualify for an additional amount on top of the base, with the extra figure depending on filing status and whether the filer is married or unmarried. If someone else can claim you as a dependent, your standard deduction is capped by a separate formula the IRS publishes each fall for the following year.3Internal Revenue Service. Topic No. 551, Standard Deduction
Deductions You Get Either Way
Some deductions sit outside the standard-versus-itemized choice, so it is fair to say you keep them no matter which box you land in. These “above-the-line” deductions reduce your adjusted gross income on Schedule 1 of Form 1040 before the standard-versus-itemized question ever comes up. Common examples are traditional IRA contributions, student loan interest, health savings account contributions, and the deductible portion of self-employment tax.
Eligible educators can deduct up to $300 in unreimbursed classroom expenses above the line, or $600 for a married couple where both spouses qualify. Starting in 2026, taxpayers who take the standard deduction can also claim an above-the-line deduction for up to $1,000 in qualified cash charitable contributions, or $2,000 for married couples filing jointly. That charitable break for non-itemizers was not available in recent prior years.
The Section 199A qualified business income deduction also sits outside the choice. If you have income from a sole proprietorship, partnership, or S corporation, you can claim it whether you take the standard deduction or itemize.4Internal Revenue Service. Qualified Business Income Deduction The One, Big, Beautiful Bill Act made this deduction permanent starting in 2026, removing its original December 31, 2025 sunset.
When You Do Not Get to Choose
Several categories of filers are barred from the standard deduction by statute. For them, the standard deduction is set to zero, so their only options are itemizing whatever qualifies or claiming no deduction at all.1Office of the Law Revision Counsel. 26 USC 63 – Taxable Income Defined
Married Filing Separately When One Spouse Itemizes
If you and your spouse file separate returns and one of you itemizes, the other spouse’s standard deduction becomes zero.1Office of the Law Revision Counsel. 26 USC 63 – Taxable Income Defined The rule keeps couples from combining methods across two returns. Even if the second spouse has almost nothing to itemize, they cannot fall back on the standard deduction; they must file with whatever documented expenses they have. Spouses who file separately should coordinate before either return is submitted, because one partner’s decision to itemize can push the other into a much higher tax bill.
The consistency rule extends to amended returns. If one spouse wants to switch methods after filing, the other generally has to make a matching change, both must consent in writing, and both must agree to let the IRS assess any additional tax that results.1Office of the Law Revision Counsel. 26 USC 63 – Taxable Income Defined
Nonresident and Dual-Status Aliens
Nonresident aliens cannot claim the standard deduction.1Office of the Law Revision Counsel. 26 USC 63 – Taxable Income Defined They itemize allowable expenses or claim none. Dual-status aliens, meaning people who were both a U.S. resident and a nonresident during the same tax year, face the same restriction and must itemize instead.5Internal Revenue Service. Publication 519 (2025), U.S. Tax Guide for Aliens
Short Tax Years
A return covering fewer than 12 months because you changed your annual accounting period also carries a zero standard deduction.1Office of the Law Revision Counsel. 26 USC 63 – Taxable Income Defined This is unusual for most individual filers but comes up in some business and estate transitions.
Making the Election and Changing It Later
You make the election simply by filing. To itemize, complete Schedule A, total your qualifying expenses, and put the number on the designated line of Form 1040. To take the standard deduction, enter the amount for your filing status on Form 1040 and skip Schedule A.1Office of the Law Revision Counsel. 26 USC 63 – Taxable Income Defined Filing the return is the legal election; no separate statement is required.
If you later find that the other method would have saved you money, you can switch by filing Form 1040-X. You generally have three years from the date you filed the original return, or two years from the date you paid the tax, whichever is later.6Internal Revenue Service. File an Amended Return If the switch is to itemized deductions, attach a corrected Schedule A to the amended return.7Internal Revenue Service. Instructions for Form 1040-X
Before deciding, run the numbers both ways. Add your potential Schedule A items — state and local taxes (subject to the 2026 cap), deductible mortgage interest, unreimbursed medical expenses above 7.5 percent of adjusted gross income, and qualifying charitable contributions — and compare the total to the standard deduction for your filing status. Whichever is larger is the one to claim, and the comparison is worth redoing every year your finances shift.