JOIM
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JOURNAL OF INVESTMENT MANAGEMENT, Vol. 4, No. 2, (2006), pp. 1–10
© JOIM 2006
EMPLOYEE STOCK OPTIONS AND TAXES
Courtney Edwards
a,∗
, John R. Graham
b
, Mark H. Lang
a
and Doug Shackelford
c
In this paper, we investigate the effect of stock options on the tax position of the firm.We
argue that option tax deductions can significantly affect a firm’s marginal tax rate and
that the effect is masked by current financial reporting rules. We present an approach for
factoring in option deductions in assessing a firm’s tax position and document that the
effect can be substantial. In particular, many firms that appear to be profitable and face
high income tax burdens (based on public financial statement data) actually pay relatively
little in taxes. We provide evidence that the effect of options on taxes may help to explain
managerial decisions such as why apparently profitable firms carry so little debt, lease rather
than purchase, and outsource tax-advantaged activities, such as research and development,
to syndicated partnerships.
1
1 Introduction
A common approach for assessing a firm’s income
tax status is based on current tax expense on the
income statement. As a general rule, firms that have
high current tax expense are firms with positive tax-
able income that face a high tax burden and have
strong incentives for tax planning. Options create
two wrinkles.
2
a
University of North Carolina.
b
Duke University.
c
University of North Carolina and NBER.
∗
Corresponding author.
First, when options are exercised, the firm typi-
cally receives a tax deduction equal to the “intrinsic
value” of the option (the difference between the
market value of the stock at exercise and the strike
price). However, the firm is not required to record
stock option expense on its income statement under
current financial reporting standards. Except for
firms that voluntarily expense stock options, the
income tax expense in the income statement is like-
wise not reduced to reflect the tax benefits of stock
option deductions.
3
As a consequence, a firm that
is option-intensive can report consistently higher
profits and tax expense on its income statement
while not paying any tax. The second wrinkle is
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