Title 26 › Subtitle Subtitle A— Income Taxes › Chapter 1— NORMAL TAXES AND SURTAXES › Subchapter E— Accounting Periods and Methods of Accounting › Part II— METHODS OF ACCOUNTING › Subpart A— Methods of Accounting in General › § 446
You figure your taxable income using the same accounting method you regularly use to keep your books. If you have no regular method, or your method does not clearly show your income, the IRS can require a method that does. Permitted methods include the cash method, an accrual method, other methods the tax code allows, or an approved combination. If you run more than one business, each business can use its own method. Once you have a regular method, you must get IRS consent before switching to a new one. Skipping that consent will not shield you from penalties: if you change methods without asking, the missing consent cannot be used to avoid or reduce any penalty or addition to tax.
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Internal Revenue Code — Source: USLM XML via OLRC
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Reference
Citation
26 U.S.C. § 446
Title 26 — Internal Revenue Code
Last Updated
Apr 6, 2026
Release point: 119-73