Answers and Solutions: 18 – 9
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f. The interest on the old issue is 0.11($40,000,000) = $4,400,000 annually, or
$2,200,000 semiannually. Since interest payments are tax deductible, the after-tax
semiannual amount is 0.6($2,200,000) = $1,320,000.
The new issue carries an 8 percent coupon rate. Therefore, the annual interest
would be 0.08($40,000,000) = $3,200,000, or $1,600,000 semiannually. The
after-tax cost is thus 0.6($1,600,000) = $960,000. Thus, the after-tax net interest
savings if refunding takes place would be $1,320,000 ─ $960,000 = $360,000
Tax benefits lost on old flotation: (19,200)
Net amortization tax effects ($ 3,200)
Semiannual Interest Savings Due To Refunding:
taxes. Thus, the appropriate interest rate is GST’s after-tax cost of debt. (The source
of the cash to fund the net investment outlay also influences the discount rate, but
most firms use debt to finance this outlay, and, in this case, the discount rate should
be the after-tax cost of debt.) Finally, since we are valuing future flows, the