When you purchase assets and use them in your business, you have several options for deducting the cost. For example, you may choose to write off the full cost using Section 179, an alternative that lets you expense up to $500,000 of new and used equipment purchases. You can also use “bonus” depreciation to write off up to 50% of the cost of new assets with a life of 20 years or less. In both cases, you apply regular depreciation methods to the remaining value of the assets. The best way may not be a single choice, but rather a combination that optimizes your tax benefit.