The Modified Accelerated Cost Recovery System (MACRS) is used to recover the basis of most business and investment property placed in service after 1986. MACRS consists of two depreciation systems, the General Depreciation System (GDS) and the Alternative Depreciation System (ADS). Generally, these systems provide different methods and recovery periods to use in figuring depreciation deductions.

This chapter explains how to determine which MACRS depreciation system applies to your property. It also discusses other information you need to know before you can figure depreciation under MACRS. This information includes the property's recovery class, placed-in-service date, and basis, as well as the applicable recovery period, convention, and depreciation method. It explains how to use this information to figure your depreciation deduction and how to use a general asset account to depreciate a group of properties. Finally, it explains when and how to recapture MACRS depreciation.

Your use of either the General Depreciation System (GDS) or the Alternative Depreciation System (ADS) to depreciate property under MACRS determines what depreciation method and recovery period you use. You generally must use GDS unless you are specifically required by law to use ADS or you elect to use ADS.

If you placed your property in service in 2007, complete Part III of Form 4562 to report depreciation using MACRS. Complete section B of Part III to report depreciation using GDS, and complete section C of Part III to report depreciation using ADS. If you placed your property in service before 2007 and are required to file Form 4562, report depreciation using either GDS or ADS on line 17 in Part III.

The following is a list of the nine property classifications under GDS and examples of the types of property included in each class. These property classes are also listed under column (a) in section B, Part III, of Form 4562. For detailed information on property classes, see Appendix B, Table of Class Lives and Recovery Periods, in this publication.

If your property is not listed above, you can determine its property class from the Table of Class Lives and Recovery Periods in Appendix B. The property class is generally the same as the GDS recovery period indicated in the table.

You begin to claim depreciation when your property is placed in service for either use in a trade or business or the production of income. The placed-in-service date for your property is the date the property is ready and available for a specific use. It is therefore not necessarily the date it is first used. If you converted property held for personal use to use in a trade or business or for the production of income, treat the property as being placed in service on the conversion date. See Placed in Service under When Does Depreciation Begin and End in chapter 1 for examples illustrating when property is placed in service.

The basis for depreciation of MACRS property is the property's cost or other basis multiplied by the percentage of business/investment use. For a discussion of business/investment use, see Partial business or investment use under Property Used in Your Business or Income-Producing Activity in chapter 1. Reduce that amount by any credits and deductions allocable to the property. The following are examples of some credits and deductions that reduce basis.

For additional credits and deductions that affect basis, see section 1016 of the Internal Revenue Code.

Enter the basis for depreciation under column (c) in Part III of Form 4562. For information about how to determine the cost or other basis of property, see What Is the Basis of Your Depreciable Property in chapter 1.

The recovery period of property is the number of years over which you recover its cost or other basis. It is determined based on the depreciation system (GDS or ADS) used.

Additions and Improvements

An addition or improvement you make to depreciable property is treated as separate depreciable property. See How Do You Treat Repairs and Improvements in chapter 1 for a definition of improvements. Its property class and recovery period are the same as those that would apply to the original property if you had placed it in service at the same time you placed the addition or improvement in service. The recovery period begins on the later of the following dates.

• The date you place the addition or improvement in service.

• The date you place in service the property to which you made the addition or improvement.

If the improvement you make is qualified leasehold improvement property or qualified restaurant property (defined earlier under Which Property Class Applies Under GDS ), the GDS recovery period is 15 years (39 years under ADS).

Example.

You own a rental home that you have been renting out since 1981. If you put an addition on the home and place the addition in service this year, you would use MACRS to figure your depreciation deduction for the addition. Under GDS, the property class for the addition is residential rental property and its recovery period is 27.5 years because the home to which the addition is made would be residential rental property if you had placed it in service this year.

Under MACRS, averaging conventions establish when the recovery period begins and ends. The convention you use determines the number of months for which you can claim depreciation in the year you place property in service and in the year you dispose of the property.

The mid-quarter convention.   Use this convention if the mid-month convention does not apply and the total depreciable bases of MACRS property you placed in service during the last 3 months of the tax year (excluding nonresidential real property, residential rental property, any railroad grading or tunnel bore, property placed in service and disposed of in the same year, and property that is being depreciated under a method other than MACRS) are more than 40% of the total depreciable bases of all MACRS property you placed in service during the entire year.

  Under this convention, you treat all property placed in service or disposed of during any quarter of the tax year as placed in service or disposed of at the midpoint of that quarter. This means that 1½ months of depreciation is allowed for the quarter the property is placed in service or disposed of.

  If you use this convention, enter “MQ” under column (e) in Part III of Form 4562.

  

For purposes of determining whether the mid-quarter convention applies, the depreciable basis of property you placed in service during the tax year reflects the reduction in basis for amounts expensed under section 179 and the part of the basis of property attributable to personal use. However, it does not reflect any reduction in basis for any special depreciation allowance.

MACRS provides three depreciation methods under GDS and one depreciation method under ADS.

Table 4-1 lists the types of property you can depreciate under each method. It also gives a brief explanation of the method, including any benefits that may apply.

Electing a Different Method

As shown in Table 4-1, you can elect a different method for depreciation for certain types of property. You must make the election by the due date of the return (including extensions) for the year you placed the property in service. However, if you timely filed your return for the year without making the election, you still can make the election by filing an amended return within 6 months of the due date of the return (excluding extensions). Attach the election to the amended return and write “Filed pursuant to section 301.9100-2” on the election statement. File the amended return at the same address you filed the original return. Once you make the election, you cannot change it.

If you elect to use a different method for one item in a property class, you must apply the same method to all property in that class placed in service during the year of the election. However, you can make the election on a property-by-property basis for nonresidential real and residential rental property.

150% election.   Instead of using the 200% declining balance method over the GDS recovery period for nonfarm property in the 3-, 5-, 7-, and 10-year property classes, you can elect to use the 150% declining balance method. Make the election by entering “150 DB” under column (f) in Part III of Form 4562.

Straight line election.   Instead of using either the 200% or 150% declining balance methods over the GDS recovery period, you can elect to use the straight line method over the GDS recovery period. Make the election by entering
“S/L” under column (f) in Part III of Form 4562.

Election of ADS.   As explained earlier under Which Depreciation System (GDS or ADS) Applies, you can elect to use ADS even though your property may come under GDS. ADS uses the straight line method of depreciation over fixed ADS recovery periods. Most ADS recovery periods are listed in Appendix B, or see the table under Recovery Periods Under ADS, earlier.

  Make the election by completing line 20 in Part III of Form 4562.

Farm property.   Instead of using the 150% declining balance method over a GDS recovery period for property you use in a farming business (other than real property), you can elect to depreciate it using either of the following methods.

• The straight line method over a GDS recovery period.

• The straight line method over an ADS recovery period.

Table 4-1. Depreciation Methods

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