Updated October 24, 2026. Quick answer: Tax Topic 458 is the IRS page on the educator expense deduction. It says an eligible educator can deduct up to $300 of unreimbursed trade or business expenses, or $600 on a joint return when both spouses are eligible educators. The topic defines an eligible educator by grade level and hours worked.
Quick reference
| Item | What the IRS topic says |
|---|---|
| Amount | “you can deduct up to $300 ($600 if married filing jointly and both spouses are eligible educators, but not more than $300 each) of unreimbursed trade or business expenses.” |
| Who is eligible | “kindergarten through grade 12 teacher, instructor, counselor, principal or aide for at least 900 hours a school year” |
| Qualified expenses | “professional development courses, books, supplies, computer equipment (including related software and services), other equipment, and supplementary materials that you use in the classroom.” |
| Physical education | “For courses in health or physical education, the expenses for supplies must be for athletic supplies.” |
| Timing | “This deduction is for expenses paid or incurred during the tax year.” |
The deduction and who can take it
The topic says “If you’re an eligible educator, you can deduct up to $300 ($600 if married filing jointly and both spouses are eligible educators, but not more than $300 each) of unreimbursed trade or business expenses.”
It defines the term this way: “You’re an eligible educator if, for the tax year you’re a kindergarten through grade 12 teacher, instructor, counselor, principal or aide for at least 900 hours a school year in a school that provides elementary or secondary education as determined under state law.”
Which expenses qualify
The topic says “Qualified expenses are amounts you paid or incurred for participation in professional development courses, books, supplies, computer equipment (including related software and services), other equipment, and supplementary materials that you use in the classroom.”
There is a rule for one subject area: “For courses in health or physical education, the expenses for supplies must be for athletic supplies.” The topic also says “Qualified expenses also include the amounts for personal protective equipment, disinfectant, and other supplies used for the prevention of the spread of coronavirus.”
Reductions and where to claim
The topic says “Qualified expenses are deductible only to the extent the amount of such expenses exceed the following amounts for the tax year:” The first item is “The interest on series EE and I U.S. savings bonds that you exclude from income because you paid qualified higher education expenses”. The others include “Any distribution from a qualified state tuition program that you exclude from income” and “Any tax-free withdrawals from your Coverdell education savings accounts”.
The last item is “Any reimbursements you receive for expenses that aren’t reported to you in box 1 of your Form W-2.” For the form, the topic says “You claim the deduction on Form 1040, Form 1040-SR, or Form 1040-NR”. Our pages on Schedule 1 line 11 and tax topics for educators cover the same deduction.
Where this comes from
This page describes the IRS page titled Topic no. 458, Educator expense deduction, as served on irs.gov on October 24, 2026. The IRS page shows that it was last reviewed or updated on 24 Sep 2026. The IRS can change a topic after we read it, and the IRS page controls. General information, not tax or legal advice.
Common mistakes
- Doubling the limit for any couple. The topic says “both spouses are eligible educators, but not more than $300 each”
- Counting any school employee. The topic says “at least 900 hours a school year”
- Buying any gym equipment. The topic says “the expenses for supplies must be for athletic supplies.”
- Ignoring reimbursements. The topic says “Any reimbursements you receive for expenses that aren’t reported to you in box 1 of your Form W-2.”
- Treating the deduction as spread across years. The topic says “expenses paid or incurred during the tax year”
Related: IRS tax topics by number, Schedule 1 line 11 educator expenses, Tax guide for educators, Schedule 1 (Form 1040), Form 1040 lines 9 to 11, and Form 1040-SR.
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Answer againSources
- IRS, Topic no. 458, Educator expense deduction (irs.gov): https://www.irs.gov/taxtopics/tc458
- IRS, Tax topics index (irs.gov): https://www.irs.gov/taxtopics
Read from the IRS pages linked above on October 24, 2026. General information, not tax or legal advice. The IRS topic page and the instructions for your own form control, and your own facts decide the outcome.