Form 2106, Employee Business Expenses
Employees file this form to deduct ordinary and necessary expenses for their job.
Form 2106-EZ, Unreimbursed Employee Business Expenses
Employees use this form to deduct unreimbursed ordinary and necessary business expenses attributable to their job.
Publication 463, Travel, Entertainment, Gift, and Car Expenses
This publication explains what expenses are deductible, how to report them on your return, what records you need to prove your expenses, and how to treat any expense reimbursements you may receive.
Publication 535, Business Expenses
This publication discusses common business expenses and explains what is and is not deductible. The chapters cover general rules for deducting business expenses and specific expenses.
Schedule A (Form 1040), Itemized Deductions
Use this schedule to figure your itemized deductions. In most cases, your federal income tax will be less if you take the larger of your itemized deductions or your standard deduction.
Schedule C (Form 1040), Profit or Loss From Business
Use this schedule to report income or loss from a business you operated or a profession you practiced as a sole proprietor. An activity qualifies as a business if your primary purpose for engaging in the activity is for income or profit and you are involved in the activity with continuity and regularity.
Schedule C-EZ (Form 1040), Net Profit From Business
You can use this schedule if you operated a business or practiced a profession as a sole proprietorship or qualified joint venture, or you were a statutory employee and you have met all the requirements listed in Schedule C-EZ, Part I.
Schedule F (Form 1040), Profit or Loss From Farming
Use this schedule to report farm income and expenses.