Estimating Cost of Debt A 22-Year, 7% Semiannual Bond Sells f or $897.26. What’s the Pre-Tax Cost of Debt r d ? 35 35 + 1,000 35 1 2 44 i = ? – 897.26 ... 44 – 897.26 35 1,000 4.0% × 2 = r d = 8% Interest is tax-deductible, so the after-tax (AT) cost of debt is: r d AT = r d (1 – T) r d AT = 8%(1 – 0.30) = 5.6% Use nominal rates. Ignore flotation costs if they are small. N I/YR PV FV PMT INPUTS OUTPUT 9- 7