Kinds of Temporary Differences
a. Taxable temporary difference is the temporary difference that will result
in future taxable amount in determining taxable income of future periods when
the carrying amount of the asset or liability is recovered or settled.
b. Deductible temporary difference is the temporary difference that will
result in future deductible amount in determining taxable income of future
periods when the carrying amount of the asset or liability is recovered or
settled.
Tax base
The tax base of an asset or liability is the amount attributable to the asset or liability
for tax purposes.
Worded in another way, the tax base of an asset or a liability is the amount of the
asset or liability that is recognized or allowed for tax purposes.
Tax base of an asset
The tax base of an asset is the amount that will be deductible for tax purposes against
future income.
For example, if an entity has appropriately capitalized P1,000,000 as software
development cost, the carrying amount is P1,000,000 for accounting purposes.
However, if this amount is allowed as a one-time deduction for tax purposes, the tax
base is zero because the entire amount is expensed in the current year.
Tax base of a liability
The tax base of a liability is normally the carrying amount less the amount that will
be deductible for tax purposes in the future.
For example, if an entity has recognized an estimated warranty liability of P500,000,
the carrying amount is P500,000 for accounting purposes.
However, an estimated warranty cost is deductible only when actually paid.
Thus, the tax base is zero because the estimated warranty cost is a future deductible
amount.