Educator Expense Deduction Calculator

Calculate the $300 teacher supply deduction ($600 joint) for educators.

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Filing Status

Your Deduction

$0.00

Maximum Allowed

$300.00

Details

Amount Spent$0.00
Deduction (above-the-line)$0.00

Qualified expenses:

Books, supplies, computer equipment, software, supplementary materials, COVID protective items. Must be K-12 educator with 900+ hours/year.

Use the Educator Expense 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 calculator helps educators determine their potential deduction for unreimbursed classroom expenses for the 2026 tax year. Understanding this deduction can reduce your taxable income, saving you money on your federal tax return. It specifically focuses on the educator expense deduction, which allows eligible educators to deduct up to $300 individually or $600 for married couples filing jointly if both are educators.

The calculation for the educator expense deduction is straightforward. It takes your total qualified unreimbursed educator expenses and applies the maximum allowable deduction for your filing status. For single filers or married filing separately, the maximum is $300; for married couples filing jointly where both are educators, the maximum is $600. The calculator will simply output the lesser of your total expenses or the maximum limit based on your input.

Remember to keep thorough records of all your expenses, including receipts and a log of what was purchased and when. A common mistake is including expenses that aren't directly related to classroom instruction or professional development. Also, be aware that this deduction is 'above-the-line,' meaning it reduces your adjusted gross income (AGI) regardless of whether you itemize or take the standard deduction.

Example: Mr. and Mrs. Davis, both teachers, purchase supplies.

  1. 1 Mr. Davis spent $220 on classroom supplies. Mrs. Davis spent $350 on classroom supplies and professional development books. They are married filing jointly.
  2. 2 Total expenses for Mr. Davis: $220. Total expenses for Mrs. Davis: $350. Combined expenses: $220 + $350 = $570. Since both are educators and they are filing jointly, the maximum deduction is $600.
  3. 3 Their allowable educator expense deduction is $570.
  4. 4 Because their combined qualified expenses ($570) are less than the maximum allowable deduction for joint filers ($600), they can deduct the full $570. If their combined expenses had been $700, they would only be able to deduct the maximum of $600.

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

Frequently Asked Questions

How much can teachers deduct for school supplies?
Eligible educators can deduct up to $300 per person ($600 for two educators filing jointly) for unreimbursed classroom expenses. This is an above-the-line deduction, meaning you can claim it even if you take the standard deduction.
Who qualifies as an eligible educator for this deduction?
You must be a K-12 teacher, instructor, counselor, principal, or aide who works at least 900 hours per school year in a school that provides elementary or secondary education. College professors do not qualify.
What expenses count for the educator deduction?
Qualifying expenses include books, supplies, computer equipment and software, supplementary materials, and professional development courses. COVID-19 protective items like masks and sanitizer also qualify. Homeschooling expenses do not qualify.