Interest on trade tax refunds pursuant to Section 233a of the General Tax Code (AO) must be recorded as business income when determining taxable income. In a most recently published decision the Supreme Tax Court further stated that the treatment of interest that is not deductible (i. e. added back to income) as interest on arrears pursuant to Section 4 (5b) Income Tax Act versus interest refunds which are subject to income tax does not violate the principle of equality under the Basic Law.
The Constitutional Court has refused to try a case against the trade tax interest add-back for want of a detailed explanation of its complaint by the referring court.
