The Internal Revenue Service (IRS) has announced inflation-adjusted tax changes for the 2027 tax year, including updated federal income tax brackets, deductions, and credits. The adjustments, which apply to income earned in 2027 and payable in 2028, were revealed in a statement issued on November 5, 2025.
The IRS confirmed two primary developments: First, the standard deduction for single filers will increase by $500, rising to $16,600 for tax year 2027. For married couples filing jointly, the standard deduction will rise by $1,000, reaching $33,200. Second, all seven federal income tax brackets will see higher income thresholds, meaning taxpayers can earn more before moving into a higher tax bracket.
The changes follow the Working Families Tax Cuts (WFTC), also known as the One Big Beautiful Bill Act, which was signed into law in 2024. The IRS stated that these adjustments are part of an annual process to account for inflation and rising wages, a mechanism sometimes referred to as "bracket creep." This adjustment helps prevent Americans from paying higher taxes on earnings that have not increased in real purchasing power.
Standard Deduction and Tax Bracket Adjustments
The standard deduction allows taxpayers to reduce their taxable income without itemizing deductions. For tax year 2027, the IRS has set the following standard deductions:
- Single filers: $16,600 (up from $16,100 in 2026)
- Married couples filing jointly: $33,200 (up from $32,200 in 2026)
The federal income tax brackets for 2027 are as follows:
- 10%: Income up to $12,800 (single) / $25,600 (married filing jointly)
- 12%: Income between $12,801 and $52,025 (single) / $25,601 and $104,050 (married)
- 22%: Income between $52,026 and $109,125 (single) / $104,051 and $218,250 (married)
- 24%: Income between $109,126 and $208,325 (single) / $218,251 and $416,650 (married)
- 32%: Income between $208,326 and $264,550 (single) / $416,651 and $529,100 (married)
- 35%: Income between $264,551 and $661,375 (single) / $529,101 and $793,650 (married)
- 37%: Income over $661,375 (single) / over $793,650 (married)
Additional Adjustments
The IRS also announced increases to other tax provisions, including:
- Child Tax Credit: Boosted by $100, rising to $2,100 per qualifying child.
- Capital gains tax thresholds: Adjusted for inflation, with the highest rate of 20% applying to taxable income above $518,900 for single filers and $583,750 for married couples filing jointly.
- Earned Income Tax Credit (EITC) limit: Increased to $7,400 for tax year 2027.
- Estate and gift tax exemptions: Raised to $13.61 million per individual and $27.22 million for married couples.
Rationale and Implementation
The IRS stated that these adjustments are part of the annual inflation indexing process, which is required by law to prevent "bracket creep." This phenomenon occurs when wage increases to keep pace with inflation push taxpayers into higher tax brackets, even though their real purchasing power has not increased. The adjustments ensure that tax liabilities remain proportional to actual economic conditions.
In a statement, IRS Chief Executive Officer Frank J. Bisignano said: "Hardworking American taxpayers will continue to benefit from the Working Families Tax Cuts (WFTC) and will see WFTC credits and deductions increase with this adjustment. American individuals and businesses will see increased tax benefits next tax year ranging from an increase in the standard deduction and the Child Tax Credit for families, and a boost to the amount that can be expensed by businesses."
The IRS emphasized that these changes apply to income earned in 2027 and will be reflected in tax returns filed in 2028. Taxpayers are advised to review the updated brackets and deductions when preparing their 2027 tax returns.