Can I deduct my laptop costs if I am a teacher?

[Hal_Al]

No. Or, at least, probably not.

Employee Computer use

If you use your own computer to work at home when you are an employee, you can claim a tax deduction for business use of the computer only if the use is for your employer's convenience, and the use is required as a condition of your employment. If you meet these conditions, and you use the computer more than 50% for your work, you could claim the section 179 deduction the year you buy the computer or claim accelerated depreciation.

https://ttlc.intuit.com/questions/1901645-how-do-i-depreciate-a-computer-i-bought-for-work

http://voices.yahoo.com/can-claim-tax-deduction-computer-when-8917765.html