Itemized Deduction Calculator

Calculate total itemized deductions and compare to standard deduction.
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Total Itemized

$0.00

Standard Deduction

$15,700.00

Better Option

Standard

Deduction Breakdown

Mortgage Interest$0.00
SALT (capped at $10K)$0.00
Charitable Donations$0.00
Medical (over $0.00)$0.00
Other$0.00
Total Itemized$0.00

Use the Itemized Deduction Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.

Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.

How It Works

This Itemized Deduction Calculator helps you determine if itemizing your deductions will result in a lower taxable income compared to taking the standard deduction. It's crucial because choosing the higher deduction amount can significantly reduce your tax liability, saving you money.

The calculator sums up your eligible itemized deductions (e.g., medical expenses, state and local taxes, mortgage interest, charitable contributions) and compares this total to the standard deduction amount for your filing status. The method involves simple addition and then a direct comparison.

Always keep meticulous records for all potential deductions, as you'll need proof if audited. A common mistake is forgetting about smaller, less obvious deductions like unreimbursed employee expenses (though these are currently suspended for federal taxes).

Example: Maximizing Your Tax Savings

  1. 1 Input the following for a single filer: Medical Expenses = $5,000, State and Local Taxes (SALT) = $10,000 (limited to $10,000 for SALT), Mortgage Interest = $8,000, Charitable Contributions = $3,000. The standard deduction for a single filer in 2023 is $13,850.
  2. 2 Calculations: Total Itemized Deductions = $5,000 (Medical) + $10,000 (SALT) + $8,000 (Mortgage Interest) + $3,000 (Charitable Contributions) = $26,000. Comparison: $26,000 (Itemized) vs. $13,850 (Standard).
  3. 3 Result: Your total eligible itemized deductions are $26,000. Since this is greater than the standard deduction of $13,850, you would choose to itemize.
  4. 4 Takeaway: By itemizing, you reduce your taxable income by an additional $12,150 ($26,000 - $13,850) compared to taking the standard deduction, leading to significant tax savings.

Source: IRS — Forms, Instructions & Publications · Last updated: April 2026

Frequently Asked Questions

What are the most common itemized deductions?
The biggest itemized deductions are state and local taxes (SALT, capped at $10,000), mortgage interest on up to $750,000 of debt, charitable contributions (up to 60% of AGI for cash), and medical expenses exceeding 7.5% of AGI.
When should I itemize instead of taking the standard deduction?
Itemize when your total deductions exceed the standard deduction ($16,100 single, $32,200 married filing jointly for 2026). This is most common for homeowners with significant mortgage interest and property taxes, or those with large charitable donations.
Does the $10,000 SALT cap still apply in 2026?
Yes. The $10,000 cap on state and local tax deductions ($5,000 if married filing separately) remains in effect through 2025 under the Tax Cuts and Jobs Act. Congress may modify this limit in future legislation, so check current law when filing.

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