Title 26 › Subtitle Subtitle A— - Income Taxes › Chapter CHAPTER 1— - NORMAL TAXES AND SURTAXES › Subchapter Subchapter B— - Computation of Taxable Income › Part PART VI— - ITEMIZED DEDUCTIONS FOR INDIVIDUALS AND CORPORATIONS › § 195
You cannot write off start-up costs unless you pick a special option. If you choose it, you can deduct in the year your business actually begins the smaller of your total start-up costs or $5,000, but that $5,000 is cut down (never below zero) by how much your start-up costs go over $50,000. Any remaining start-up costs are spread out and deducted in equal amounts over 180 months, starting the month the business begins. If you sell or stop the business before that time ends, any leftover deferred expenses may be claimed if allowed under section 165. For a tax year that begins in 2010, use $10,000 and $60,000 instead of $5,000 and $50,000. Start-up costs mean money spent to look into, set up, or start a business, or to prepare to earn income before the business begins, and that would have been deductible if they were for running an existing business in the same field. When the business starts is set by IRS rules, except a bought business counts as starting when you buy it. You must make the election by the due date (including extensions) of the tax return for the year the business starts, and once you pick it you must keep using that method for that year and later years.
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Internal Revenue Code — Source: USLM XML via OLRC
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Reference
Citation
26 U.S.C. § 195
Title 26 — Internal Revenue Code
Last Updated
Apr 6, 2026
Release point: 119-73