IRS Tax Forms  
Publication 538 2000 Tax Year

Introduction

Each taxpayer (business or individual) must figure taxable income on an annual accounting period called a tax year. The calendar year is the most common tax year. Other tax years are the fiscal year and, under certain conditions, a short tax year.

Each taxpayer must also use a consistent accounting method, which is a set of rules for determining how and when to report income and expenses. The most commonly used accounting methods are the cash method and an accrual method. Under the cash method, you generally report income in the tax year you receive it and deduct expenses in the tax year you pay them. Under an accrual method, you generally report income in the tax year you earn it, regardless of when payment is received, and deduct expenses in the tax year you incur them, regardless of when payment is made.

This publication explains some of the rules for accounting periods and accounting methods. In many cases, however, you may have to refer to the cited sources for a fuller explanation of the topic. Section references are to the Internal Revenue Code and regulation references are to the Income Tax regulations under the Code.

This publication is not intended as a guide to general business and tax accounting rules.

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