Short Years
A short year occurs when there is an accounting period of less than 12 calendar months. A short year can be:
- the first reporting period,
- the final reporting period, or
- the result of a change in an annual accounting period.
A short
Depreciation methods that use a half-year convention (methods SH, DH, and YH) need to use the half-rate rule, which requires that one-half of the depreciation calculated for the full short-year period be used. Depreciation methods that use the modified half-year convention (methods SD, DD, and YD) apply special rules to the short-year calculation. When you place an asset in service in the first half of a short year, then the full amount of the short-year depreciation is allowed. In such cases, the regular full-year recovery is multiplied by the short-year fraction.
The short-year fraction is:
Months in a short year
12
For example, if an organization changes its fiscal year-end month from September to December, the short-year fraction is 3/12.