Every year when you file your federal income taxes, you face the same fundamental choice: take the standard deduction or itemize your deductions on Schedule A. You can only do one — and whichever one you choose sets the floor for how much of your income escapes taxation. Before the Tax Cuts and Jobs Act (TCJA) of 2017, this was a close call for millions of filers. Today, the IRS estimates roughly 90% of taxpayers claim the standard deduction, because the 2017 law nearly doubled the standard amounts. But that 10% who still itemize are often saving thousands of dollars — and the math is worth checking every year, especially if your financial picture has changed.
- 2026 standard deductions: Single $16,100 · Married Filing Jointly $32,200 · Head of Household $24,150
- You can only take the standard deduction OR itemized deductions — whichever is higher wins; you can't combine both
- The SALT deduction (state income/sales tax + property tax) is capped at $10,000 combined — a significant limit for high-tax states
- Mortgage interest is deductible on up to $750,000 of acquisition debt for loans originated after December 15, 2017
- Bunching charitable donations into alternating years can push you over the itemizing threshold in "on" years
- Roughly 90% of filers take the standard deduction since the 2017 TCJA nearly doubled the amounts
The 2026 Standard Deduction Amounts
Under IRS Revenue Procedure 2025-32, the inflation-adjusted standard deduction figures for the 2026 tax year are as follows:
| Filing Status | Standard Deduction | Age 65+/Blind Add-On |
|---|---|---|
| Single | $16,100 | +$1,600 |
| Married Filing Jointly | $32,200 | +$1,350 per qualifying person |
| Married Filing Separately | $16,100 | +$1,350 |
| Head of Household | $24,150 | +$1,600 |
The additional deduction for taxpayers who are age 65 or older, or legally blind, is layered on top of the base amount. A single filer who is both 65 and blind gets two add-ons: $16,100 + $1,600 + $1,600 = $19,300. A married couple where both spouses qualify gets $32,200 + $1,350 + $1,350 = $34,900.
How the Choice Actually Works
The IRS lets you subtract deductions from your adjusted gross income (AGI) before computing tax. You have two paths to determine that deduction amount. The standard deduction is a flat dollar amount based on filing status — no receipts, no forms, no calculations required. The itemized deduction is the sum of specific qualifying expenses you list on Schedule A — mortgage interest, state taxes, charitable gifts, and more.
The rule is simple: you take whichever number is larger. If your total itemized deductions add up to $22,000 and your standard deduction as a single filer is $16,100, you itemize — and you get $22,000 of deductions instead of $16,100. If your itemized total is $14,000, you take the standard deduction and save yourself the paperwork. The gap between those two numbers — whatever it is — gets multiplied by your marginal tax rate to determine how much extra tax you save by itemizing instead of taking the standard deduction.
What You Can Itemize on Schedule A
There are five major categories of deductible expenses on Schedule A. Understanding each one — and its limitations — is essential for knowing whether your total can actually beat your standard deduction.
1. State and Local Taxes (SALT)
You can deduct state and local income taxes (or, if lower, state and local sales taxes — but not both) plus property taxes on real estate you own. The critical limitation: the total SALT deduction is capped at $10,000 per return ($5,000 if married filing separately). This cap was one of the most consequential changes in the 2017 TCJA and has been especially painful for residents of high-tax states like New York, California, and New Jersey, where property tax bills and state income taxes routinely exceed $10,000 on their own.
2. Mortgage Interest
For loans originated after December 15, 2017, you can deduct mortgage interest on up to $750,000 of acquisition debt — that is, debt used to buy, build, or substantially improve your primary or secondary home. For older loans (originated before December 16, 2017), the limit is $1,000,000. Home equity loan or line of credit interest is only deductible if the proceeds were used to buy, build, or substantially improve the home securing the loan — tapping your home equity for a vacation or to pay off credit cards produces no deduction.
3. Charitable Contributions
Cash donations to qualifying 501(c)(3) organizations are deductible up to 60% of your AGI. Donations of appreciated stock or other property are generally deductible at fair market value up to 30% of AGI. You must have written documentation for any donation of $250 or more. Non-cash donations of clothing or household items must be in good condition or better to be deductible.
4. Medical and Dental Expenses
Only the portion of unreimbursed medical and dental expenses that exceeds 7.5% of your AGI is deductible. For most people this threshold wipes out any potential deduction — on a $70,000 AGI, you'd need to exceed $5,250 in out-of-pocket medical costs before a single dollar becomes deductible. But after a serious illness, surgery, or major dental work, this category can add up quickly. Qualifying expenses include health insurance premiums paid out-of-pocket, long-term care insurance premiums (subject to age-based limits), prescription drugs, and medical equipment.
5. Casualty and Theft Losses
Since the TCJA, personal casualty and theft losses are only deductible if they result from a federally declared disaster. If a hurricane, wildfire, flood, or other major disaster hits your area and the President declares it a federal disaster, losses after a $100 floor and above 10% of AGI may be deductible. Ordinary theft, car accidents not involving federally declared disasters, and similar losses no longer qualify.
When Itemizing Beats the Standard Deduction
The calculus is straightforward: if your total Schedule A deductions exceed your standard deduction amount, itemizing saves you money. The specific situations where this happens most often:
- Homeowners with large mortgages. Consider a single filer with a $400,000 mortgage at 6.8% interest. In year one of a standard amortization, approximately $26,900 of their payments goes to interest — far exceeding the $16,100 standard deduction on its own. Even before adding SALT and charitable deductions, this taxpayer almost certainly itemizes.
- High property tax + state income tax in high-tax states. Even capped at $10,000, the full SALT deduction paired with significant mortgage interest and modest charitable giving can easily clear the standard deduction threshold — particularly for single filers.
- Large charitable donors. Individuals who donate 5–10% or more of their income to charity can rapidly accumulate deductions. A $30,000 income earner donating 10% plus claiming the SALT cap still falls short — but a $150,000 earner donating 10% generates $15,000 in charitable deductions alone, which paired with SALT and mortgage interest creates a compelling case to itemize.
- Major medical events. If you or a dependent faced a serious illness, the 7.5%-of-AGI floor can still leave thousands in deductible expenses after that threshold — particularly for taxpayers with moderate incomes relative to their medical bills.
A Concrete Example: Single Filer in California
Here's the math for a single California homeowner:
- Mortgage interest: $18,000
- State income tax + property tax (capped): $10,000
- Charitable donations: $3,000
- Total itemized deductions: $31,000
Compare that to the 2026 standard deduction of $16,100. The itemized total is $14,900 higher. At a 22% marginal bracket, that extra $14,900 of deductions reduces their federal tax bill by approximately $3,278. That's real money — and it requires the taxpayer to file Schedule A rather than accepting the default standard deduction.
The lesson: the decision deserves fresh math every year, especially after buying a home, making large donations, or incurring significant medical expenses.
The Bunching Strategy for Charitable Deductions
For taxpayers who are close to the standard deduction threshold — say, within $3,000–$5,000 of the line — there's a powerful planning strategy called bunching. Instead of donating $5,000 to charity each year, you donate $10,000 every other year. In "on" years you itemize, claiming all your deductions including the doubled-up charitable contribution. In "off" years you take the standard deduction.
The net effect is that you end up with the same total charitable giving over two years, but your total deductions across those two years are higher than if you split the gifts evenly — because in even-gift years you'd leave standard-deduction money on the table.
A Donor-Advised Fund (DAF) makes this strategy especially clean. You contribute a lump sum to the DAF in an "on" year and take the full charitable deduction for that year — then you grant funds to your actual charities from the DAF on whatever schedule you prefer. The IRS doesn't require that the money be distributed to charities in the same year you claim the deduction, only that it's irrevocably contributed to the DAF.
What the TCJA Changed — and What Could Change Again
The Tax Cuts and Jobs Act of 2017 made several changes that dramatically shifted the standard vs. itemizing calculus:
- Roughly doubled the standard deduction amounts, immediately pushing tens of millions of filers from itemizing to the standard deduction
- Capped the SALT deduction at $10,000 — previously unlimited, this single change eliminated most of the itemized benefit for residents of high-tax states
- Eliminated the deduction for home equity loan interest except when proceeds are used for home improvement
- Eliminated the personal exemption (previously $4,050 per person), which partially offset the higher standard deduction for large families
- Eliminated miscellaneous itemized deductions subject to the 2% AGI floor, including unreimbursed employee business expenses and investment fees
Critically: most of the individual provisions of the TCJA are scheduled to expire after 2025. If Congress does not act, the standard deduction will revert to pre-2018 amounts (roughly half the current levels), the SALT cap will disappear, and the personal exemption will return. As of mid-2026, Congressional action on these expiring provisions is still unresolved — watch for legislative developments that could reshape this calculation going forward.
Married Filers: A Higher Bar
The MFJ standard deduction of $32,200 is a significantly higher hurdle to clear than the $16,100 single threshold. Many dual-income couples who own a home find they cannot reach $32,200 in itemized deductions — especially with the SALT cap limiting combined state and property taxes to $10,000 regardless of how much they actually paid. The couples most likely to still itemize are those with one very large mortgage, those in the highest property-tax areas, or those with substantial charitable giving programs built into their financial plan.
Use the Income Tax Estimator to model both scenarios with your actual numbers. The exercise takes minutes and often reveals whether it's worth gathering all your Schedule A documentation — or whether the standard deduction is simply the smarter, simpler choice for your situation this year.