Table of Contents
For the latest information about developments related to Publication 463, such as legislation enacted after it was published, go to www.irs.gov/pub463.
Standard mileage rate. For 2012, the standard mileage rate for the cost of operating your car for business use is 55½ cents per mile. Car expenses and use of the standard mileage rate are explained in chapter 4.
Depreciation limits on cars, trucks, and vans. For 2012, the first-year limit on the total depreciation deduction for cars increases to $11,160 ($3,160 if you elect not to claim the special depreciation allowance). For trucks and vans the first-year limit has increased to $11,360 ($3,360 if you elect not to claim the special depreciation allowance). Depreciation limits are explained in chapter 4.
Section 179 deduction. For 2012, the section 179 deduction limit on qualifying property purchases (including cars, trucks, and vans) is a total of $500,000 and the limit on those purchases at which the deduction begins to be phased out is $2,000,000. Section 179 Deduction is explained in chapter 4.
Special depreciation allowance. For 2012, the special (“bonus”) depreciation allowance on qualified property (including cars, trucks, and vans) is reduced to 50%. Special Depreciation Allowance is explained in chapter 4.
Per diem rates. Effective for 2012 and later, the IRS no longer updates Publication 1542, Per Diem Rates (For Travel Within the Continental United States). Instead, current per diem rates may be found on the U.S. General Services Administration (GSA) website at www.gsa.gov/perdiem.
Photographs of missing children. The Internal Revenue Service is a proud partner with the National Center for Missing and Exploited Children. Photographs of missing children selected by the Center may appear in this publication on pages that would otherwise be blank. You can help bring these children home by looking at the photographs and calling 1-800-THE-LOST (1-800-843-5678) if you recognize a child.
You may be able to deduct the ordinary and necessary business-related expenses you have for:
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Travel,
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Entertainment,
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Gifts, or
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Transportation.
An ordinary expense is one that is common and accepted in your trade or business. A necessary expense is one that is helpful and appropriate for your business. An expense does not have to be required to be considered necessary.
This publication explains:
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What expenses are deductible,
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How to report them on your return,
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What records you need to prove your expenses, and
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How to treat any expense reimbursements you may receive.
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You fully accounted to your employer for your work-related expenses.
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You received full reimbursement for your expenses.
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Your employer required you to return any excess reimbursement and you did so.
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There is no amount shown with a code “L” in box 12 of your Form W-2, Wage and Tax Statement.

Internal Revenue Service
Individual Forms and Publications Branch
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1111 Constitution Ave. NW, IR-6526
Washington, DC 20224
Internal Revenue Service
1201 N. Mitsubishi Motorway
Bloomington, IL 61705-6613
Publication
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225 Farmer's Tax Guide
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529 Miscellaneous Deductions
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535 Business Expenses
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946 How To Depreciate Property
Form (and Instructions)
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Schedule A (Form 1040) Itemized Deductions
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Schedule C (Form 1040) Profit or Loss From Business
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Schedule C-EZ (Form 1040) Net Profit From Business
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Schedule F (Form 1040) Profit or Loss From Farming
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2106 Employee Business Expenses
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2106-EZ Unreimbursed Employee Business Expenses
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4562 Depreciation and Amortization
See chapter 7, How To Get Tax Help , for information about getting these publications and forms.
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