Accounting for Decision Making and Control 8th Edition by Jerold Zimmerman

Exercise 6

Depreciation Tax Shield
An investment project involves the purchase of equipment at a cost of $100 million. For tax purposes, the equipment has a life of five years and will be depreciated on a straight-line basis. Inflation is expected to be 5 percent and the real interest rate is 5 percent. The tax rate is 40 percent.
What is the present value of the depreciation tax shield for the machine?
Source: R. Watts.