Can I include an expense if I don't currently have the receipt?

[karemgh]

it's an educational expense relating to my job. I want to try to deduct it.

[DDollar]

Receipts are required for deductions greater than $75.  That said, if it is an expense related to your job, and you are a W-2 employee, then those type of expenses are no longer tax deductible.  They were eliminated by new tax law.