What Is the Standard Deduction and How Does It Work?

4 min read · Updated for 2026

The standard deduction is one of the most powerful numbers on your tax return — and one of the least understood. It directly reduces the income you're taxed on, requires no receipts, and applies automatically. Here is exactly how it works and how much it saves you in 2026.

What the Standard Deduction Is

The standard deduction is a flat dollar amount the IRS lets you subtract from your gross income before applying the federal income tax brackets. You do not need to track expenses, gather receipts, or prove anything — you simply claim it and reduce your taxable income by that amount.

For 2026, the standard deduction amounts are:

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

Additional standard deduction amounts apply if you are 65 or older, or blind: an extra $1,550 per qualifying condition for single filers, or $1,250 per qualifying condition per qualifying spouse for married filers. A single filer who is both 65 and blind, for example, gets $14,600 + $3,100 = $17,700.

How It Works in Practice

The standard deduction reduces your taxable income — the number that the tax brackets are applied to. It does not reduce your gross wages or your FICA taxes. Social Security and Medicare are withheld on your gross wages regardless of any deductions.

Here is the math for a single filer earning $75,000:

  1. Gross income: $75,000
  2. Subtract standard deduction: − $14,600
  3. Taxable income: $60,400
  4. Apply 2026 tax brackets to $60,400 (not $75,000)

That $14,600 deduction saves about $1,606–$3,212 in federal income tax depending on your marginal bracket (11–22%). The deduction itself is worth more the higher your tax bracket.

Standard Deduction vs Itemizing

You can only use one approach per year: the standard deduction or itemized deductions. Itemizing means listing out qualifying expenses — mortgage interest, state and local taxes (capped at $10,000), charitable donations, and qualifying medical expenses above 7.5% of income — and deducting the actual total.

You should itemize only if your total qualifying deductions exceed the standard deduction for your filing status. For most people, that threshold is hard to clear. A homeowner with $12,000 in mortgage interest and $7,000 in state taxes could itemize $19,000 — beating the $14,600 standard deduction by $4,400. But most renters and low-mortgage homeowners will not exceed the standard deduction.

About 90% of filers take the standard deduction. The Tax Cuts and Jobs Act of 2017 roughly doubled the standard deduction from 2017 levels, which is why so few people itemize today compared to a decade ago.

Standard Deduction Impact at Different Income Levels (Single Filer, 2026)

Gross IncomeStandard DeductionTaxable IncomeEst. Federal Tax
$40,000$14,600$25,400~$2,816
$60,000$14,600$45,400~$5,420
$80,000$14,600$65,400~$9,860
$100,000$14,600$85,400~$14,260
$150,000$14,600$135,400~$26,948

Estimates use 2026 federal income tax brackets for single filers and assume no other deductions or credits. Actual tax may differ.

What the Standard Deduction Does NOT Affect

Two important limitations to understand:

  • FICA taxes are not reduced. Social Security (6.2%) and Medicare (1.45%) are withheld from your gross wages before any deductions are considered. The standard deduction only reduces your federal income tax — not your payroll taxes.
  • State income taxes have their own rules. Most states have their own standard deduction amounts, which are typically much smaller than the federal amount. Some states require you to use the same method (standard or itemized) as your federal return. Others let you choose independently.

The standard deduction also does not affect your eligibility for above-the-line deductions — things like student loan interest, HSA contributions, and self-employed health insurance premiums. Those are subtracted from income before the standard deduction comparison is even made.

Want to see how the standard deduction affects your actual take-home pay? Use the Pay-Breakdown paycheck calculator to model your federal income tax with real 2026 brackets and deductions applied.