REVENUE RECOGNITION. Revenue is recognized upon delivery of shipments. For shipments in transit, revenue is recorded based on the percentage of service completed at the balance sheet date. Estimates for future billing adjustments to revenue and accounts receivable are recognized at the time of shipment for money-back service guarantees and billing corrections. Delivery costs are accrued as incurred.
Certain of our revenue-producing transactions are subject to taxes, such as sales tax, assessed by governmental authorities. We present these revenues net of tax.