The normal method for reporting a company’s financial results is the accrual basis of accounting, under which expenses are matched to revenues within a reporting period. However, for tax purposes, it is sometimes possible to report income under the cash method of accounting. Under this approach, revenue is not recognized until payment for invoices is received, while expenses are not recognized until paid.
The cash basis of accounting can result in a great deal of manipulation from the perspective of the IRS, which discourages its use, but does not prohibit it. As an example of income manipulation, a company may realize that it will have a large amount of income to report in the current year, and will probably have less in the following year. Accordingly, it prepays a number of supplier invoices at the end of the year, so that it recognizes them at once under the cash method of accounting as expenses in the current year. The IRS prohibits this type of behavior under the rule that cash payments recognized in the current period can only relate to current-year expenses. Nonetheless, it is a difficult issue for the IRS to police. The same degree of manipulation can be applied to the recognition of revenue, simply by delaying billings to customers near the end of the tax year. Also, in situations where there is a sudden surge of business at the end of the tax year, possibly due to seasonality, the cash method of accounting will not reveal the sales until the following year, since payment on the invoices from customers will not arrive until the next year. Consequently, the cash method tends to under-report taxable income.
In order to limit the use of this method, the IRS prohibits it if a company has any inventories on hand at the end of the year. The reason for this is that expenditures for inventory can be so large and subject to manipulation at year-end that a company could theoretically alter its reported level of taxable income to an enormous extent. The cash basis is also not allowable for any “C” corporation, partnership that has a “C” corporation for a partner, or a tax shelter. However, within these restrictions, it is allowable for an entity with average annual gross receipts of $5 million or less for the three tax years ending with the prior tax year, as well as for any personal service corporation that provides at least 95% of its activities in the services arena.
The IRS imposes some accrual accounting concepts on a cash-basis organization in order to avoid some of the more blatant forms of income avoidance. For example, if a cash-basis company receives a check at the end of its tax year, it may be tempted not to cash the check until the beginning of the next tax year, since this would push the revenue associated with that check into the next year. To avoid this problem, the IRS uses the concept of constructive receipt, which requires one to record the receipt when it is made available to one without restriction (whether or not it is actually recorded on the company’s books at that time). Besides the just-noted example, this would also require a company to record the interest on a bond that comes due prior to the end of the tax year, even if the associated coupon is not sent to the issuer until the next year.