A Survey of Changing Bonus Depreciation Rules for Cost Segregation

Thanks to the IRS and changes in federal law, the rules governing bonus depreciation in cost segregation have continued to transform over the years. This article reviews the most significant recent changes and discusses their implications. (Trigger warning for non-CPAs: the discussion is highly technical!)

bonus depreciation

General rules for bonus depreciation

The IRS Code Section168(k)(7) election: This is an election to not take bonus depreciation. If the taxpayer didn't elect out, they are required to take the bonus depreciation on the property.

For 2016 and 2017

For property that was placed in service in 2016 or 2017, IRS Revenue Proclamation (Rev. Proc.) 2019-33, Section 5.02 Section – Deemed Election states:

… a taxpayer that timely filed its federal tax return for the 2016 taxable year or the 2017 taxable year also will be treated as making the §168(k)(7) election for a class of property that is qualified property acquired after September 27, 2017 by the taxpayer and placed in service by the taxpayer during its 2016 taxable year or 2017 taxable year, if the taxpayer: (a) On that return, did not claim the 100-percent additional first-year depreciation for that class of property;…
For the tax year 2017, if you’re taxpayer, you need to revoke the 168(k)(7) election. You can do so using Rev. Proc. 2020-50 (or Rev. Proc. 2020-25). Under Section 6 of Rev. Proc. 2020-50, you revoke the 168(k)(7) election by filing:

  1. A federal amended income tax return or amended Form 1065 for the placed-in-service year of the property on or before December 31, 2021, but in no event later than the applicable period of limitations on assessment for the taxable year for which the amended return is being filed; or
  1. A Form 3115 with the taxpayer’s timely filed federal tax return for the first, second, or third taxable year succeeding the 2016 taxable year or the 2017 taxable year. 

For 2018, 2019, or 2020

For property placed in service in 2018-2020, there was no deemed election out of bonus depreciation for these years. If the taxpayer failed to take bonus depreciation and qualified, then they are using an impermissible method. Section 4 of Rev. Proc. 2020-50 allows the taxpayer to correct the impermissible method to a permissible method and thereby take the bonus depreciation (even if the property was only placed in service for one year, which would normally not be a method that needs to be changed) by filing:

  1. A federal amended income tax return or amended Form 1065 for the placed-in-service year of the depreciable property on or before December 31, 2021, but in no event later than the applicable period of limitations on assessment for the taxable year for which the amended return is being filed

Note: you may want to file amended returns for this, as it may generate NOLs that can be carried back to prior years under the CARES Act.  

  1. A Form 3115 with the taxpayer’s timely filed original federal income tax return or Form 1065 under the automatic change procedures in Rev. Proc. 2015-13. Rev. Proc. 2015-13 requires a timely filed (including extensions) original income tax return for the requested year of change. It also provides a six-month window if you filed an original non-extended return and failed to include Form 3115; you can go back and file Form 3115 with an amended return to correct it.

For 2021

As final regulations specify, the election out has to be made on your original return. If you missed bonus depreciation and discovered it in a later year, you can amend if you catch it in 2022. If you catch it in 2023 or later, file 3115 under Rev. Proc. 2015-13.

This chart illustrates how the new changes to bonus depreciation rules work

As bonus depreciation rules continue to change, we’ll be reporting it in this space. Stay tuned!

Recent Posts

fixed fee R&D tax credits

Fixed Fee vs. Time and Materials: Tax Credit Implications

Research and development (R&D) tax credits are a powerful financial incentive for companies willing to push the boundaries of innovation. These credits reward businesses that invest in developing new products, processes or technologies—essentially encouraging them to take risks that benefit society as a whole. However, not all R&D projects qualify for tax credits. To make

Read More »

What to Do With Unused Tax Deductions

Tax deductions are valuable tools that reduce the amount of your income that’s subject to taxation. They can save you money—but sometimes, you might not be able to fully utilize all your deductions within a single tax year. This article will explain what happens to those unused deductions and provide strategies to help you make

Read More »

Tax Strategies for Subdivision Developers

The rental market is booming! With rising home prices and increasing demand for flexible living options, rental properties are more valuable than ever. As of 2019, renters made up over 36% of U.S. households. This trend presents a significant opportunity for subdivision developers seeking to boost profits and build a sustainable real estate portfolio. By

Read More »

Contact Us