With the publication and implementation of International Accounting Standards some differences have arisen about our tax legislation in accounting applications. The way of thinking or perspective can change in accounting with accounting standards. According to standard provisions, financial statements should be arranged according to accounting rules. According to our tax legislation, the expenses that are not legally accepted in the calculation of the financial profit and the incomes which are considered as exceptions cause permanent and temporary differences to arise. Continued differences are considered in accordance with the tax legislation but the tax effect of the temporary differences arising from the periodicity principle is not taken into account. Temporary differences arise when the time of occurrence of income and expense differs from the time of recognition in terms of tax legislation. The tax effect of temporary differences is reported in the balance sheet as deferred tax asset or deferred tax liability and deferred tax return or deferred tax income in the Income Statement. If the termination indemnity is the subject of the periodicity principle, it is a situation that is taken as cost in expense in the related period but it is a temporary difference in the tax rate because payment is not made in the period when the expense is recorded. The main purpose of this study is to illustrate by example the calculation and recognition of severance payment by examining the differences between the provisions of the revenue tax standard No. 12 and the tax legislation of accounting practices.