• Effective life of intangible depreciating assets

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    The effective life of most intangible depreciating assets is prescribed under the UCA.

    Asset

    Effective life in years

    1. Standard patent
     

    20

    1. Innovation patent
     

    8

    1. Petty patent
     

    6

    1. Registered design
     

    15

    1. Copyright
     

    The shorter of 25 years from when you acquire it or the period until the copyright ends

    1. A licence (except one relating to a copyright or in-house software)
     

    The term of the licence

    1. A licence relating to a copyright
     

    The shorter of 25 years from when you become the licensee or the period until the licence ends

    1. In-house software
     

    1. Spectrum licence
     

    The term of the licence

    1. Datacasting transmitter licence
     

    15

    1. A mining, quarrying or prospecting right relating to mining operations (except obtaining petroleum or quarry materials)
     

    The life of the mine or proposed mine or, if there is more than one, the life of the mine that has the longest estimated life

    1. A mining, quarrying or prospecting right relating to mining operations to obtain petroleum
     

    The life of the petroleum field or proposed petroleum field

    1. A mining, quarrying or prospecting right relating to mining operations to obtain quarry materials
     

    The life of the quarry or proposed quarry or, if there is more than one, the life of the quarry that has the longest estimated life

    You do not have a choice to either work out the effective life yourself or use an effective life determined by the Commissioner for the intangible depreciating assets. In addition, the effective life of these depreciating assets cannot be recalculated.

    The effective life of an indefeasible right to use an international telecommunications submarine cable system is the effective life of the international telecommunications submarine cable over which the right is granted.

    The effective life of any other intangible depreciating asset cannot be longer than the term of the asset as extended by any reasonably assured extension or renewal of that term.

    If you acquire any of the intangible assets listed in the table (except items 5, 7 or 8) from a former holder and you choose to calculate the asset's decline in value using the prime cost method, you must replace the effective life shown in the table in the formula with the number of years remaining in that effective life as at the start of the income year you acquired the asset.

    Last modified: 31 Oct 2005QC 27521