revenue from product sales when persuasive evidence of an arrangement exists, the product has been delivered, the price is fixed and determinable and collection is reasonably assured. For most sales, we use a binding purchase order and in certain cases we use a contractual agreement as evidence of an arrangement. We consider delivery to occur upon shipment provided title and risk of loss have passed to the customer. At the point of sale, we assess whether the arrangement fee is fixed and determinable and whether collection is reasonably assured. If we determine that collection of a fee is not reasonably assured, we defer the fee and recognize revenue at the time collection becomes reasonably assured, which is generally upon receipt of cash.



Our policy on sales to distributors is to defer recognition of revenue and related cost of revenue until the distributors resell the product.

 

We record estimated reductions to revenue for customer programs at the time revenue is recognized. Our customer programs primarily involve rebates, which are designed to serve as sales incentives to resellers of our products in various target markets. We account for rebates in accordance with Emerging Issues Task Force Issue 01-9, or EITF 01-9, Accounting for Consideration Given by a Vendor to a Customer (Including a Reseller of the Vendor’s Products) and, as such, we accrue for 100% of the potential rebates and do not apply a breakage factor. Unclaimed rebates, which historically have not been significant, are reversed to revenue upon expiration of the rebate. Rebates typically expire six months from the date of the original sale.

 

Our customer programs also include marketing development funds, or MDFs. We account for MDFs as either a reduction of revenue or an operating expense in accordance with EITF 01-9. MDFs represent monies paid to retailers, system builders, OEMs, distributors and add-in card partners that are earmarked for market segment development and expansion and typically are designed to support our partners’ activities while also promoting NVIDIA products. If market conditions decline, we may take actions to increase amounts offered under customer programs, possibly resulting in an incremental reduction of revenue at the time such programs are offered.

 

We also record a reduction to revenue by establishing a sales return allowance for estimated product returns at the time revenue is recognized, based primarily on historical return rates. However, if product returns for a particular fiscal period exceed historical return rates we may determine that additional sales return allowances are required to properly reflect our estimated exposure for product returns.

License and Development Revenue

 

For license arrangements that require significant customization of our intellectual property components, we generally recognize this license revenue using the percentage-of-completion method of accounting over the period that services are performed. For all license and service arrangements accounted for under the percentage-of-completion method, we determine progress to completion based on actual direct labor hours incurred to date as a percentage