The income that is not taxed
The U.S. does not have a single "tax-free" salary level, but the standard deduction does a similar job: it is the slice of income the federal government does not tax at all. For tax year 2026, the IRS set it at $16,100 for single filers and married people filing separately, $32,200 for married couples filing jointly and $24,150 for heads of household.
If your income is at or below your standard deduction and you have no other tax to pay, your federal income tax is zero. Credits like the Earned Income Tax Credit can even produce a refund for lower-income workers.
Source: Internal Revenue Service, Tax inflation adjustments for tax year 2026.
Read also: Year-end bonus: how it is taxed and how to use it well and Emergency fund: how much to save and where to keep it.
How the deduction and brackets work together
Federal tax is progressive: each slice of taxable income is taxed at its own rate. For 2026, a single filer pays 10% on the first $12,400 of taxable income and 12% on the next slice up to $50,400, with higher rates above that. Taxable income is what is left after the deduction.
| Step | Single filer, $40,000 in wages |
|---|---|
| Gross income | $40,000 |
| Minus standard deduction | - $16,100 |
| Taxable income | $23,900 |
| 10% on the first $12,400 | $1,240 |
| 12% on the remaining $11,500 | $1,380 |
| Estimated federal income tax | about $2,620 |
That is roughly 6.5% of the $40,000, much lower than the 12% bracket suggests. This is a simplified example: credits, other deductions, state taxes, and Social Security and Medicare taxes change the final picture.
Itemizing instead
You can itemize deductions instead, such as mortgage interest, state and local taxes and charitable gifts, but it only helps if the total is larger than your standard deduction. Most households now take the standard deduction because it is higher. People 65 and older get an additional standard deduction and, for 2025 through 2028, a temporary extra deduction of up to $6,000 depending on income.
Do you still need to file?
Even if you owe nothing, filing can be worth it: it is the only way to get back federal tax withheld from your paychecks and to claim refundable credits. Self-employed people generally must file if they earned $400 or more in net self-employment income, because of self-employment tax. The IRS offers free filing options for many taxpayers; check IRS.gov before paying for software.
Sources
- Internal Revenue Service. IRS releases tax inflation adjustments for tax year 2026. https://www.irs.gov/newsroom/irs-releases-tax-inflation-adjustments-for-tax-year-2026-including-amendments-from-the-one-big-beautiful-bill
Frequently asked questions
What is the standard deduction for 2026?
$16,100 for single filers, $32,200 for married couples filing jointly and $24,150 for heads of household.
If I earn less than the standard deduction, do I pay federal income tax?
Generally no federal income tax, though Social Security and Medicare taxes still apply to wages.
Should I file if I owe nothing?
Often yes. Filing lets you recover withheld tax and claim refundable credits like the Earned Income Tax Credit.
Is it better to itemize?
Only if your itemized deductions add up to more than your standard deduction. Most households take the standard deduction.
