Financial Reporting and Analysis 6e Income Tax Reporting
different earlier or later period.
a. Timing differences are considered “temporary” because a revenue (or expense) item
that causes book income to be greater than (less than) taxable income when it is
initially recorded (called an originating temporary difference) will eventually
reverse.
b. These reversals cause book income to be less than (greater than) taxable income in
future periods and are called reversing temporary differences.
c. Temporary differences that will cause taxable income to be higher than book income
in future periods give rise to a deferred tax liability.
d. Conversely, temporary differences that will cause taxable income to be lower than
book income in future periods when those differences reverse give rise to a deferred
tax asset.
b. See Exhibit 13.1 in the text for examples of temporary (timing) differences.
c. Timing differences result in a journal entry on the books of the corporation for the
difference between the tax liability for the year and book income times the
applicable tax rate for the corporation.
C. Problems Caused by Temporary Differences
1. Interperiod tax allocation refers to the allocation of income tax expense across periods
when there are differences between book and tax income.
2. Depreciation expense is the most prevalent temporary book/tax timing difference.
a. For tax purposes, profit-maximizing firms try to minimize the discounted present
value of their future tax payments by using accelerated depreciation for tax purposes.
b. Many of these same firms use straight–line depreciation for financial reporting
purposes, causing a temporary difference between book income and taxable
income.
c. Treating actual cash taxes paid as income tax expense would not reflect the true
economics of the situation.
i. This approach would mismatch tax expense with pre-tax book income, resulting
in an increasing effective (book) tax rate even when the pre-tax book income
and the statutory tax rate are stable over time.
ii. The effective (book) tax rate is the tax expense divided by pre-tax income that is
reported on the GAAP income statement.
iii. Continuing with the depreciation expense temporary difference, this approach
also ignores the future tax liability that results.
d. Therefore, tax expense must be adjusted for temporary differences between book and
tax items in order to reflect the true economics of the situation.
D. Deferred Income Tax Accounting: Interperiod Tax Allocation:
To avoid these drawbacks, income tax accounting does not simply equate tax expense
with current taxes paid (or payable).
1. Instead, the journal entry for income taxes expense reflects all tax payments related
to current period pre-tax income regardless of when the payments will occur. It calls
for recognizing deferred tax liability, reflecting future tax payments.
a. The debit to income tax expense, when tax rates are constant and there are no
permanent book/tax differences, equals the tax rate times pre–tax book income.
b. The credit to income tax payable is the tax rate times the taxable income per the tax
return.
c. The debit/credit to the deferred income taxes line is the tax rate times the net of all
temporary differences.
d. The text illustrates that the debit to income tax expense is a plug number, which
represents the combination of current taxes payable and any change in the deferred