The internal rate of return is the rate of return required by a firm's management for a particular project. rate computed by discounting the cash inflows and dividing by the initial cost. discount rate that causes the net present value of a project to equal zero. rate of return needed for a project to payback within the allotted time period. A firm is considering a project that requires $150,000 of fixed assets that are classified as 7-year property for MACRS. What is the accumulated depreciation of these assets at the end of year 6? Year 1 2 3 4 5 6 7 8 % 14.29 24.49 17.49 12.49 8.93 8.93 8.93 4.45 $116,535 $20,070 $129,930 $18,732