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 begin to be phased down for property placed in service after calendar year 2022.

If you buy the software as part of a hardware purchase in which the price of the software isn’t separately stated, you must treat the software cost as part of the hardware cost. Therefore, you must depreciate the software under the same method and over the same period of years that you depreciate the hardware. Additionally, if you buy the software as part of your purchase of all or a substantial part of a business, the software must generally be amortized over 15 years.

Leased software

You must deduct amounts you pay to rent leased software in the tax year they’re paid, if you’re a cash-method taxpayer, or the tax year for which the rentals are accrued, if you’re an accrual-method taxpayer. However, deductions aren’t generally permitted before the years to which the rentals are allocable. Also, if a lease involves total rentals of more than $250,000, special rules may apply.

Software developed by your business

Some software is deemed to be “developed” (designed in-house or by a contractor who isn’t at risk if the software doesn’t perform). For tax years beginning before calendar year 2022, bonus depreciation applies to developed software to the extent described above. If bonus depreciation doesn’t apply, the taxpayer can either deduct the development costs in the year paid or incurred or choose one of several alternative amortization periods over which to deduct the costs. For tax years beginning after calendar year 2021, generally the only allowable treatment will be to amortize the costs over the five-year period beginning with the midpoint of the tax year in which the expenditures are paid or incurred.

If following any of the above rules requires you to change your treatment of software costs, it will usually be necessary for you to obtain IRS consent to the change.

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We can assist you in applying the tax rules for treating computer software costs in the way that is most advantageous for you.