When it comes to understanding standard deduction vs itemizing, knowing the IRS rules is essential. Every year, tens of millions of Americans face the same question when filing their taxes: should I take the standard deduction or itemize? Getting this right can mean the difference of hundreds or thousands of dollars. Here’s exactly how to decide.
What Are the 2025 Standard Deduction Amounts?
For the 2025 tax year (filed in early 2026), the standard deduction amounts are:
- Single / Married Filing Separately: $15,000
- Married Filing Jointly: $30,000
- Head of Household: $22,500
If you’re 65 or older or blind, you get an additional $1,550–$1,950 added to the standard deduction depending on your filing status.
About 90% of filers take the standard deduction because it’s simply larger than what they can itemize. But for the other 10%, itemizing can save significantly more.
What Can You Itemize?
Itemized deductions go on Schedule A and can include:
- Mortgage interest — On loans up to $750,000 (guide →)
- State and local taxes (SALT) — Property taxes + state income/sales tax, capped at $10,000 (guide →)
- Charitable contributions — Cash and non-cash donations to qualifying organizations
- Medical expenses — Amount exceeding 7.5% of your AGI (guide →)
- Casualty and theft losses — From federally declared disasters only
The Simple Math: When Does Itemizing Win?
You should itemize when your total deductible expenses exceed the standard deduction for your filing status. Let’s look at two examples:
Example 1: Single Renter
- Mortgage interest: $0 (renting)
- State income tax: $3,200
- Charitable donations: $800
- Total itemized: $4,000
- Standard deduction: $15,000
- Decision: Take the standard deduction. It wins by $11,000.
Example 2: Married Homeowner
- Mortgage interest: $18,000
- Property taxes + state income tax: $10,000 (SALT cap)
- Charitable donations: $5,000
- Medical expenses over 7.5% AGI: $4,000
- Total itemized: $37,000
- Standard deduction: $30,000
- Decision: Itemize. Saves an extra $7,000 in deductions.
The SALT Cap Changes Everything
Before 2018, itemizing made sense for many more people. The Tax Cuts and Jobs Act capped the state and local tax (SALT) deduction at $10,000 and nearly doubled the standard deduction — which is why most people now take the standard deduction.
Homeowners with large mortgages and people in high-tax states like California, New York, and New Jersey are still often better off itemizing. But middle-income renters almost never are.
Can You Switch Every Year?
Yes. You can choose whichever option is larger in any given tax year. Some taxpayers strategically “bunch” deductions — making two years of charitable contributions in a single year, for example — so that one year’s itemized total exceeds the standard deduction while they take the standard deduction in the other year.
For more tax guidance, see our guides on medical expense deductions and property tax deductions and the SALT cap. For official IRS information, visit the IRS Topic 501 on itemized deductions.
Quick Decision Tool
Add up your potential itemized deductions (mortgage interest + SALT up to $10K + charitable + medical over 7.5% AGI). If the total exceeds your standard deduction for your filing status, itemize. If it doesn’t, take the standard deduction.
Our full guide: Standard Deduction vs. Itemizing 2025 →
This article is for educational purposes only. Consult a tax professional for personalized advice.
The 2025 Standard Deduction Amounts
The standard deduction amounts for 2025 are:
- Single / Married Filing Separately: $15,000
- Head of Household: $22,500
- Married Filing Jointly / Qualifying Surviving Spouse: $30,000
These amounts increased from 2024 due to inflation adjustments. If you’re 65 or older or blind, you can add $1,300–$1,600 more depending on your filing status.
Bunching Deductions: A Powerful Strategy
If your itemized deductions are close to but below the standard deduction in a typical year, consider a bunching strategy: concentrate deductible expenses in alternating years.
For example, instead of giving $5,000 to charity every year, give $10,000 every other year. In “on” years, you have enough to itemize and get the full tax benefit. In “off” years, take the standard deduction. Over time, this can save thousands compared to taking the standard deduction every year.
Donor-advised funds make this strategy easy: you can contribute a large amount in one year, get the full deduction, and then distribute the funds to charities over multiple years at your own pace.
Qualified Business Income and Itemizing
If you’re self-employed and claim the Qualified Business Income (QBI) deduction (Section 199A), note that this deduction applies regardless of whether you take the standard deduction or itemize. The QBI deduction is claimed on Schedule 1, not Schedule A, so itemizing doesn’t affect it.
What About State Returns?
Federal and state returns are independent. Several states don’t have their own standard deduction (like California), and some have their own rates that differ from federal law. A few states require you to use the same method (standard vs. itemized) as your federal return, while others let you choose independently. Check your state’s specific rules — in high-tax states, the state itemized deduction can sometimes be valuable even when the federal standard deduction wins.
Records You Need to Itemize
If you decide to itemize, make sure you have documentation for everything you claim:
- Mortgage interest: Form 1098 from your lender
- State/local taxes: Property tax bills, W-2 box 17 for state income tax withheld, estimated tax payment records
- Charitable donations: Written acknowledgment letters for donations over $250; receipts for smaller amounts
- Medical expenses: Receipts, EOB documents from insurer, provider statements
Keep these records for at least 3 years after you file the return they relate to.
Bottom Line
The decision comes down to simple math: total your potential itemized deductions and compare to your standard deduction. If itemized wins by even $1, you should itemize. If the standard deduction wins or it’s close, take the standard deduction and save yourself the paperwork.
Given that the standard deduction is now $15,000 (single) or $30,000 (married), most Americans — especially renters and those without large mortgage interest — will take the standard deduction. But every year is worth checking, especially when life circumstances change: new home, significant medical expenses, increased charitable giving, or major property tax bills.