Quick Answer
Only above-the-line deductions (like student loan interest and HSA contributions) can be claimed with the standard deduction. To claim itemized deductions like mortgage interest, state taxes, charitable donations, and medical expenses over 7.5% of AGI, you must forgo the $30,000 standard deduction (married filing jointly) and itemize on Schedule A.
Best Answer
Robert Kim, CPA
Best for taxpayers trying to decide between standard deduction and itemizing
What deductions require itemizing?
The key distinction is between above-the-line deductions (which you can claim with the standard deduction) and itemized deductions (which require giving up the standard deduction). According to IRS Publication 501, itemized deductions are claimed on Schedule A and include mortgage interest, state and local taxes, charitable donations, and medical expenses.
Above-the-line deductions (you can claim these WITH the standard deduction):
Itemized deductions (require giving up the standard deduction):
Example: Should you itemize?
Let's say you're married filing jointly with $120,000 AGI. Your potential itemized deductions:
Total itemized deductions: $37,000
Standard deduction for 2026: $30,000
Benefit of itemizing: $37,000 - $30,000 = $7,000 additional deduction
Tax savings: $7,000 × 22% (your tax bracket) = $1,540
In this case, itemizing saves you $1,540 in taxes.
When itemizing makes sense
Key factors that affect this decision
What you should do
Run the numbers both ways. Calculate your total potential itemized deductions and compare to your standard deduction. Even if itemizing saves you just $100, it's worth the extra paperwork. Use our return scanner to identify deductions you might be missing.
Key takeaway: You must choose between the standard deduction ($30,000 for married couples in 2026) and itemized deductions on Schedule A. Itemizing only makes sense if your total itemized deductions exceed your standard deduction amount.
Key Takeaway: You must choose between the standard deduction ($30,000 for married couples in 2026) and itemized deductions on Schedule A. Itemizing only makes sense if your total itemized deductions exceed your standard deduction amount.
Standard deduction vs. common itemized deduction scenarios
| Filing Status | Standard Deduction 2026 | Need Itemized Deductions Over | Common Scenarios |
|---|---|---|---|
| Single | $15,000 | $15,000 | Mortgage interest $12K+ OR high state taxes + donations |
| Married Filing Jointly | $30,000 | $30,000 | Mortgage interest $25K+ OR high SALT + donations + medical |
| Head of Household | $22,500 | $22,500 | Mortgage interest $18K+ OR high state taxes + significant medical |
More Perspectives
Robert Kim, CPA
Best for homeowners who pay mortgage interest and property taxes
Homeowner-specific deductions that require itemizing
As a homeowner, you're most likely to benefit from itemizing because of mortgage interest and property taxes. According to the National Association of Realtors, about 84% of homeowners with mortgages benefit from itemizing.
Major homeowner itemized deductions:
What you CAN'T deduct anymore:
Example: Typical homeowner scenario
You bought a $600,000 home with a $480,000 mortgage at 6.5% interest. Your annual deductions:
Total itemized deductions: $43,200
vs. Standard deduction (MFJ): $30,000
Additional deduction benefit: $13,200
This saves you approximately $2,904 in taxes (assuming 22% bracket).
Key takeaway: Homeowners with mortgages should almost always run the itemizing calculation, as mortgage interest alone often approaches or exceeds the standard deduction.
Key Takeaway: Homeowners with mortgages should almost always run the itemizing calculation, as mortgage interest alone often approaches or exceeds the standard deduction.
Robert Kim, CPA
Best for W-2 employees with straightforward tax situations
When simple W-2 filers should consider itemizing
Most W-2 employees with straightforward situations benefit from the standard deduction. The 2026 standard deduction of $15,000 (single) or $30,000 (married filing jointly) is substantial and eliminates the need for most people to track receipts and fill out Schedule A.
You probably should stick with the standard deduction if:
Consider itemizing if you:
Quick itemizing test for simple filers
Add up these potential deductions:
If the total exceeds $15,000 (single) or $30,000 (married), run the full itemizing calculation.
Key takeaway: Simple W-2 filers usually benefit from the standard deduction unless they have unusually high charitable donations, medical expenses, or live in high-tax states.
Key Takeaway: Simple W-2 filers usually benefit from the standard deduction unless they have unusually high charitable donations, medical expenses, or live in high-tax states.
Sources
- IRS Publication 501 — Standard Deduction and Filing Information
- IRS Schedule A Instructions — Itemized Deductions
Related Questions
Reviewed by Robert Kim, CPA on February 28, 2026
This content is for educational purposes only and is not a substitute for professional tax advice. Consult a qualified tax professional for advice specific to your situation.