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Generally, if inventory is an income-producing factor in your business, tax rules require you to use the accrual method for purchases and sales and to account for inventory at the beginning and end of each year.
However, two IRS Revenue Procedures provide an exception to this rule and permit certain taxpayers to use the cash method of accounting.
The two exceptions are:To be a qualifying taxpayer under this exception:
A qualifying small business taxpayer is any taxpayer with average annual gross receipts of $10,000,000 or less that is not prohibited from using the cash method under section 448 (see below - Prohibited Principal Activities Under Revenue Procedure 2002-28).
This cash method safe harbor applies to service businesses, custom manufacturrers, and any other taxpayer whose pricipal activity is not specifically ineligible under Revenue Procedure 2002-28 (see prohibited activities below).
If your business is engaged in two or more activities, for example, you operate a pool cleaning service and also sell pool supplies, the activity that accounts for the largest percentage of gross receipts in the prior year or the largest average percentage of gross receipts in the three previous years, is the principal activity.
The principal activity does not have to account for more than 50% of gross receipts if your business conducts more than two business activities. For example, one activity could account for 40%, a second for 25% and a third for 35%. The 40% activity would be the principal activity.
Ineligible Activities:
If only one set of books is kept, and any of the prohibited activities are the principal activity of the business, then even if the $10 million gross receipts test is met the cash method cannot be used for any activity of the business.
If a separate and complete set of books and records are maintained for each business activity and the principal business activity is a prohibited activity, you can use the cash method for an eligible activity but must use the accrual method for the prohibited activity.
Under Revenue procedure 2002-28, businesses with average annual gross receipts of $10 million or less over the previous three years whose principal business activity is not a prohibited activity may use the cash method even if...
As of December 31, 2001, Revenue Procedure 2002-28 expanded the number of small businesses eligible to use the cash method of accounting by increasing the average annual revenue amount from $1 million to $10 million.
Prior to Revenue Procedure 2002-28, under Revenue Procedure 2001-10, only taxpayers with average annual gross receipts of $1 million or less for the previous three years (other than tax shelters) were exempted from using the accrual method.
A taxpayer has average annual gross receipts of $10,000,000 or less if, for each prior taxable year ending on or after December 31, 2000, the taxpayer's average annual gross receipts for the three taxable-year period ending with the applicable prior taxable year do not exceed $10,000,000.
If a taxpayer has not been in existence for three prior taxable years, the taxpayer must determine its average annual gross receipts for the number of years (including short taxable years) that the taxpayer has been in existence. See section 448(c)(3)(A).
An eligible business may not have to keep an inventory and may treat inventoriable items as nonincidental materials and supplies.
This means, you deduct the cost of inventoriable items:
Result:
In the above example, had you started and completed the job in January 2021, you would deduct the cost of materials and supplies in 2021 even though you paid for them in 2020.
Note that the rules for deducting inventoriable items that are treated as nonincidental materials and supplies may result in an inconsistent application of a true cash method of accounting, as demonstrated in the above example.
Under the cash method, you deduct the cost of an item in the year you pay for it. However, the rules for deducting inventoriable items that are treated as nonincidental materials and supplies state that you may deduct the cost in the year paid or in the year consumed or provided to the consumer, whichever is later.