Itemized deductions are specific expenses you can list on your tax return to lower your taxable income. Unlike the standard deduction, which is a flat amount, itemizing lets you claim actual costs like medical bills, state taxes, and charitable donations.
When you file your federal income tax return, you choose between taking the standard deduction or itemizing. The IRS allows either method, but you'll only itemize if your total deductions exceed the standard amount. For the 2023 tax year, the standard deduction is $13,850 for single filers and $27,700 for married couples filing jointly.
To itemize, you'll use IRS Schedule A (Form 1040). This form lists six categories of deductions:
The most common itemized deductions include:
| Deduction Type | Description | Limitations |
|---|---|---|
| Medical and dental expenses | Costs for diagnosis, treatment, prevention, or cure of diseases | Only expenses exceeding 7.5% of adjusted gross income (AGI) |
| State and local taxes | Income, sales, and property taxes paid to state and local governments | Combined limit of $10,000 ($5,000 if married filing separately) |
| Charitable donations | Cash or property given to qualified organizations | Must be to IRS-approved charities |
| Mortgage interest | Interest paid on loans secured by your main home or second home | Limits apply based on loan amount and date |
Many taxpayers confuse itemized deductions with other tax terms. Here's how they differ:
One common mistake is claiming the same expense twice. For example, if you deduct state income taxes, you cannot also deduct state sales taxes for the same purchase. The IRS has strict rules against double-dipping.
Let's say you're a single filer with the following expenses in 2023:
Your adjusted gross income (AGI) is $60,000. Since medical expenses exceed 7.5% of your AGI ($4,500), you can deduct the full $12,000. Adding up all your deductions gives you a total of $33,000. Since this exceeds the standard deduction of $13,850, itemizing saves you more money.
Itemizing is worth it if your total deductions exceed the standard deduction. High earners, homeowners, and those with significant medical expenses often benefit most. However, tracking receipts and records is essential to substantiate your claims if audited.