Schedule A (Form 1040)

Schedule A (Form 1040) explained: Itemized deductions vs standard deduction

Schedule A is the IRS form you attach to your Form 1040 when you choose to itemize deductions instead of taking the standard deduction. It lets you list specific qualifying expenses such as medical costs, mortgage interest and charitable donations to reduce your taxable income.

Not every taxpayer needs Schedule A. You only benefit from filing it when your total itemized expenses exceed the standard deduction for your filing status.

Standard deduction vs. itemized deductions

Choosing between the standard deduction and itemizing is the key decision Schedule A revolves around. The standard deduction is a fixed dollar amount the IRS lets you subtract from your income with no receipts or documentation needed. Itemizing means listing your actual qualifying expenses one by one on Schedule A.

The right choice depends on which option gives you the larger deduction. Here is how they compare for the 2025 tax year:

Standard deduction vs Itemized deductions

How it works

• Standard deduction: A flat amount based on filing status
• Itemized deductions: You add up qualifying expenses individually

Documentation

• Standard deduction: None required
• Itemized deductions: Receipts, statements, and records needed

Single filers

• Standard deduction: $15,000
• Itemized deductions: Must exceed $15,000 to benefit

Married filing jointly

• Standard deduction: $30,000
• Itemized deductions: Must exceed $30,000 to benefit

Head of household

• Standard deduction: $22,500
• Itemized deductions: Must exceed $22,500 to benefit

Best for

• Standard deduction: Taxpayers with fewer deductible expenses
• Itemized deductions: Taxpayers with high medical, mortgage, tax, or charitable costs

Taxpayers aged 65 or older also receive an additional standard deduction: $2,000 for single or head-of-household filers and $1,600 per qualifying spouse for married couples. This extra amount applies to blind taxpayers as well.

If your total qualifying expenses come close to the standard deduction, add them up before deciding. Even a small difference can affect your tax bill.

What expenses can you deduct on Schedule A?

Schedule A organizes deductible expenses into several categories. Each has its own rules and limits, so not every dollar you spend will qualify.

• Medical and dental expenses that exceed 7.5% of your adjusted gross income (AGI). This includes doctor visits, hospital stays, prescriptions and health insurance premiums you paid with after-tax dollars.
• State and local taxes (SALT), including income tax or sales tax plus property tax, capped at $10,000 combined ($5,000 if married filing separately).
• Mortgage interest on loans used to buy, build or improve your primary or second home, generally on the first $750,000 of debt.
• Charitable contributions to qualifying organizations, including cash, donated property and out-of-pocket volunteer expenses.
• Casualty and theft losses from a federally declared disaster only.

If you pay Medicare Part B, Part D, or Medigap premiums out of pocket, those count toward your medical expenses. Premiums deducted pre-tax through an employer plan do not qualify, since they have already reduced your taxable income.

What you cannot deduct on Schedule A?

Several common expenses look like they should qualify but do not. Knowing what the IRS excludes helps you avoid errors and saves time when gathering records.

Non-deductible expenses include federal income tax payments, homeowners association fees, funeral or burial costs, political contributions and most personal living expenses like groceries, clothing and commuting. Fines, penalties and costs related to illegal activity are also excluded.

As a general rule, if an expense is not specifically listed in the Schedule A instructions it does not qualify.

How to fill out Schedule A?

Schedule A is organized into sections that match each deduction category. You enter expenses line by line and total everything at the bottom.

• Gather all receipts, statements, and records for your deductible expenses from the tax year.
• Enter medical and dental expenses in lines 1–4, applying the 7.5% AGI threshold.
• Report state and local taxes in lines 5–7,respecting the applicable SALT cap for the tax year (commonly $10,000, but may be higher under current law).
• List mortgage interest and points in lines 8–10.
• Record charitable contributions in lines 11–14.
• Add casualty and theft losses in line 15, if applicable.
• Enter your total on line 17 and transfer it to Form 1040, line 12.

Keep your documentation for at least three years after filing. The IRS may request proof of any deduction you claim.

Need to fill out a Schedule A form?

Our free Schedule A template gives you a clear starting point for reporting your itemized deductions. Use our fillable Schedule A form to enter your expense details directly and produce an accurate, IRS-ready document in minutes. Try it today for free.

Try the free Schedule A form