The deceased, Mr Abraham de Beer, died in 1995 holding a usufruct which he had acquired from the estate of his predeceased spouse. Under the Estate Duty Act 45 of 1955, usufructs form part of the dutiable estate, but certain deductions are allowed under section 4. The executors of Mr de Beer’s estate claimed a deduction under section 4(m) in respect of the value of the usufruct. In the estate of the predeceased spouse, a deduction under section 4(q) had been claimed, but the value of the usufruct was deliberately excluded because the estate was small enough to avoid estate duty without it. The Commissioner for the South African Revenue Service refused the section 4(m) deduction in Mr de Beer’s estate on the basis that a deduction under section 4(q) had been ‘allowed’ in the predeceased spouse’s estate. The Income Tax Special Court ordered the Commissioner to allow the deduction, and the Commissioner appealed to the Supreme Court of Appeal.