Signing Bonus

Signing Bonus means:
an inseverable part of the cost of obtaining a sports player's services. The team may begin claiming depreciation deductions for the signing bonus as soon as the necessary signatures are affixed to the contract. Former Revenue Ruling (check if this Rev. Rul. interpretation is current) 71-137, 1971-1 C.B. 137.

See Depreciation in the United States Encyclopedia of Law and Depreciation in the World Encyclopedia of Law.