Standard Deduction 2025: What It Is and When to Itemize

The standard deduction is a fixed dollar amount that reduces your taxable income before tax brackets are applied. For 2025, it increased slightly from 2024 due to the IRS’s annual inflation adjustment.

2025 Standard Deduction Amounts

Filing Status	2025 Standard Deduction	2024 Amount	Change
Single	$14,600	$14,600	+$0
Married Filing Jointly	$29,200	$29,200	+$0
Head of Household	$21,900	$21,900	+$0
Married Filing Separately	$14,600	$14,600	+$0

Note: IRS releases final 2025 numbers in late 2024. Confirm at IRS.gov for the most current figures.

Additional Deduction for Age 65+ or Blind

Status	Additional Amount (2025)
Single, age 65+ OR blind	+$1,950 per condition
Married filing jointly, 65+ or blind	+$1,550 per spouse, per condition

A single taxpayer who is 65 or older gets a $14,600 + $1,950 = $16,550 standard deduction.

How the Standard Deduction Works

The standard deduction is subtracted from your Adjusted Gross Income (AGI) to produce your taxable income:

Gross Income → Adjustments (student loan interest, HSA, etc.) = AGI → Standard Deduction → Taxable Income

Example:

• Gross income: $75,000
• AGI adjustments: −$2,500 (student loan interest deduction)
• AGI: $72,500
• Standard deduction: −$14,600
• Taxable income: $57,900

Should You Itemize Instead?

Itemize only if your total qualified deductions exceed your standard deduction. Key itemized deductions:

Deduction	Limit / Rules
Mortgage interest	On up to $750,000 of acquisition debt
State and local taxes (SALT)	Capped at $10,000/year combined
Charitable contributions	Up to 60% of AGI for cash donations
Medical expenses	Only the portion exceeding 7.5% of AGI
Casualty/theft losses	Only federally declared disasters

Who typically itemizes in 2025:

• Homeowners with large mortgages (>$400,000) in low-tax states
• High earners with significant charitable giving
• Those with large unreimbursed medical expenses

Who takes the standard deduction:

• Renters (no mortgage interest)
• Homeowners in high-SALT states (SALT cap limits their benefit)
• Most people with mortgages under $400,000

Approximate breakeven: A homeowner in a state with 5% income tax, earning $80,000, with a $350,000 mortgage at 7% would have approximately:

• SALT deduction: $4,000 income tax + $4,800 property tax = $8,800 (capped at $10,000)
• Mortgage interest: ~$24,000 (year 1 at 7% on $350K)
• Total itemized: ~$32,800 → exceeds $14,600 standard deduction

For this homeowner, itemizing saves about $18,200 × 22% = $4,004 in federal taxes.

Impact on Tax Calculation

Income	Standard Deduction	Taxable Income	Tax (Approx.)
$50,000	$14,600	$35,400	~$4,032
$75,000	$14,600	$60,400	~$8,202
$100,000	$14,600	$85,400	~$13,702
$150,000	$14,600	$135,400	~$25,343

Without the standard deduction, a $75,000 earner would owe about $10,900 instead of $8,202 — a $2,698 difference that the standard deduction provides for free.

The TCJA and Standard Deduction History

The Tax Cuts and Jobs Act of 2017 nearly doubled the standard deduction (from ~$6,350 to $12,000 for singles). This shift moved roughly 30 million households from itemizing to the standard deduction. The higher standard deduction simplified tax filing for most Americans at the cost of making many previously valuable itemized deductions (like the home office deduction for W-2 employees) irrelevant.

The TCJA’s expanded standard deduction is set to expire after 2025 unless Congress acts — watch for legislative changes that could affect the 2026 standard deduction.

Use our Paycheck Calculator to model your exact tax situation.

See Also

• Federal income tax brackets 2025
• How to reduce taxable income
• W-4 withholding guide