Rates are set by fiscal year, effective October 1 each year. Find current rates in the continental United States ("CONUS Rates").
If you receive security deposits and other advances, and you have an unrestricted right to these payments, you must report them in the year received.
If a tenant pays expenses on your behalf in lieu of paying you rent, such payments to third parties are included in your business income as rental income.
If your tenant pays to get out of a lease or to secure a lease (bonus payment), such payments are income to the recipient.
If you exchange your goods or services for property, you're involved in bartering transactions. Bartering transactions can be done one-on-one or through a barter exchange. In any case, income must be reported by each recipient. Transactions done through a barter exchange are reported to the IRS on Form 1099-B, Proceeds from Broker and Barter Exchange Transactions.
A consignment of merchandise involves a contract under which the owner of the merchandise (consignor) delivers his merchandise to a dealer (consignee) for sale by the dealer rather than for sale to the dealer.
For this service the consignee generally receives a commission. The consignor include in income only items sold by the consignee. Bear in mind, just physically transferring property to a consignment location does not constitutes a sale, nor does it constitute a transfer of legal titlle to the property. This means, at year-end, any of unsold inventory remaining at the consignment location must be included in the ending inventory of the consignor. If the consignee never sells the property for you, it must be returned to you.
If you owe a debt and creditor say you don't have to pay it back, this is referred to as debt forgiveness. Debts that are forgiven (canceled) must generally be included in your income. However, certain debts that are canceled do not have to be included in income.
When the sale of investment property, such as stocks, bonds, is sold for a profit, the profit is called a capital gain. It's called a capital gain because the underlying asset is a capital asset. You report capital gains (and losses) on Schedule D. Sales of business property is figured on Form 4797.
Business-related income that is not derived from the sale or goods or services is referred to as other income. For example, interest on a business bank account.