California Requires C-Corporations to Follow Federal Asset Depreciation Range (ADR) System Provisions

Emily Chau, CPA
Subject Matter Expert – Software
Bloomberg Tax & Accounting

Corporate taxpayers doing business in California often share the sentiment that tax compliance and planning in the state can be as cumbersome and complex as federal efforts. Tax depreciation is one such area where California state rules differ significantly from the federal rules.

California does not conform to either the Accelerated Cost Recovery System (ACRS) or Modified Accelerated Cost Recovery System (MACRS) systems of depreciation. California conforms only to the depreciation methods specified in Internal Revenue Code (IRC) Section 167 (To access all primary sources, log in or request a demo.), prior to the enactment of the ACRS and MACRS systems. Therefore, it is imperative that corporate taxpayers review their depreciation methods to ensure that they comply with the methods prescribed in California Revenue and Taxation Code (RT&C) Sections 24349 through 24354 (To access all primary sources, log in or request a demo.).

The only acceptable methods of depreciation for California tax purposes are:

  • Straight-line
  • Declining balance
  • Sum-of-the-years-digits method
  • Any other method with an annual allowance that does not exceed the allowances permitted under the declining balance method during the first two-thirds of the useful life of the property

[Learn how you can calculate state bonus depreciation with ease].

Depreciation Methods to Use

When assigning a useful life for California depreciation purposes, it is important to note that the state adheres to the federal Class Life Asset Depreciation Range (ADR) System provisions. Taxpayers can find the applicable useful lives in IRS Rev. Proc. 87-56 (To access all primary sources, log in or request a demo.).

Corporate taxpayers often default to the straight-line method for depreciating their assets for California purposes. However, taxpayers should refer to the instructions for Form FTB 3885 for state recommended depreciation methods and useful lives for various property types depending on the nature of the property, whether the property is new or used, and the acquisition date of the property. A review of the form instructions could possibly lead to more favorable state tax depreciation deductions.

In addition to differing depreciation methods and useful lives, California taxpayers should be aware of other areas of federal nonconformity:

  • Bonus depreciation
  • Enhanced asset expensing election (IRC 179) (To access all primary sources, log in or request a demo.)
  • Computer software does not qualify as a depreciable asset
  • Bonus depreciation for new luxury autos or certain passenger automobiles acquired and placed in service in 2010 through 2018
  • Depreciation limitations for trucks and vans placed in service in calendar year 2018
Depreciation Limitations Trucks Vans 2018 2019
Depreciation Limitations Passenger Automobiles Not Trucks Vans 2018 2019 updated
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