A reminder from the Journal of Accountancy:
Bonus Depreciation
The 100% first-year bonus depreciation provision expired on Dec. 31, but 50% bonus depreciation is available for property placed in service in 2012. (100% bonus depreciation does still apply in the case of certain longer-lived and transportation property placed in service before 2013.)
http://www.journalofaccountancy.com/Web/20114954.htm
We’ve covered setting up, using and adjusting Bonus Depreciation in Dynamics GP.