The Tax Rules For Deducting The Computer Software Costs Of Your Business

Do you buy or lease computer software to use in your business? Do you develop computer software for use in your business, or for sale or lease to others? Then you should be aware of the complex rules that apply to determine the tax treatment of the expenses of buying, leasing or developing computer software.

Purchased software

Some software costs are deemed to be costs of “purchased” software, meaning software that’s either:

  • Non-customized software available to the general public under a non-exclusive license or
  • Acquired from a contractor who is at economic risk should the software not perform.

The entire cost of purchased software can be deducted in the year that it’s placed into service. The cases in which the costs are ineligible for this immediate write-off are the few instances in which 100% bonus depreciation or Section 179 small business expensing isn’t allowed or when a taxpayer has elected out of 100% bonus depreciation and hasn’t made the election to apply Sec. 179 expensing. In those cases, the costs are amortized over the three-year period beginning with the month in which the software is placed in service. Note that the bonus depreciation rate will […]