2025 deduction comparison

Standard vs Itemized Deduction Calculator

Compare common 2025 itemized deductions against the standard deduction using SALT, mortgage interest, charity, and medical-expense rules.

Reviewed QuickTaxTools editorial review Updated April 25, 2026 and aligned to the sources linked below.
Tax year 2025 This page uses the federal or state scope called out in the methodology section.
Source set IRS, SSA, and official guidance Primary references are linked on-page and collected in the site sources library.
Methodology Source library
2025 source: IRS standard deduction guidance, Instructions for Schedule A on the 2025 SALT cap and phase-down, and the 7.5% AGI medical-expense floor used for itemized deductions.
Income and deduction categories
Standard deduction
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Itemized deductions
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Better choice
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Difference
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Allowable SALT after cap-
Deductible medical expenses-
Mortgage interest-
Charitable contributions-
Other itemized deductions-
Estimate only. Deductibility of mortgage interest, casualty losses, and charitable limits can vary based on facts not captured here.

Why this comparison matters

Most filers still claim the standard deduction. This calculator helps you test whether common itemized categories actually beat the standard deduction before you spend time collecting every receipt and statement.

Methodology

How this calculator works

  • Start with the standard deduction for the selected filing status.
  • Build itemized deductions from the common categories entered on the page, including SALT, mortgage interest, charitable gifts, and deductible medical expenses above the 7.5% AGI floor.
  • Show which option is larger and by how much so users can decide whether Schedule A work is worth it.
Worked example

Example scenario

A homeowner with large state taxes and mortgage interest can use this tool to see whether itemizing beats the standard deduction or whether the SALT cap keeps the standard deduction as the better answer.

Primary references

Direct sources for this page

Instructions for Schedule A

Itemized-deduction categories, floors, and SALT rules.

IRS 2025 standard deduction guidance

Standard deduction amounts and taxpayer guidance.

IRS federal income tax rates and brackets

Helpful when comparing deduction choices against tax savings.

Reviewed with the site-wide editorial methodology and the full sources library.
Next step

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Frequently asked questions
What itemized deductions are included here?
This calculator includes state and local tax payments subject to a cap, mortgage interest, charitable gifts, medical expenses above the 7.5% AGI floor, and casualty losses you enter manually.
Does it apply the medical-expense floor automatically?
Yes. It subtracts 7.5% of AGI from entered medical expenses and only counts the portion above that floor as itemized medical deduction.
Does this replace Schedule A?
No. It is a planning calculator meant to compare common deduction categories before you prepare Schedule A.