This session examines Commissioner of Taxes (SA) v Executor Trustee and Agency Co of South Australia Ltd (Carden’s Case) (1938) 63 CLR 108 and its continuing significance for the concept of derivation under s 6-5 ITAA 1997. We will consider how the High Court interpreted the word “derived”, the role of accounting methods in tax law, and the distinction between legal entitlement and commercial realisation. The central tension is between strict entitlement and practical receipt: when has income sufficiently crystallised to be assessable?
Case Summary
A deceased medical practitioner had historically returned income on a cash basis. The Commissioner sought to include outstanding but unpaid fees as income derived. The High Court held that derivation depends upon the accounting method appropriate to the taxpayer’s business. Dixon J stated that income must have “come home” to the taxpayer in a realised or immediately realisable form. For a sole professional practitioner, a receipts basis was appropriate and unpaid fees were not derived.
Discussion Focus
- What does “derived” mean in statutory context?
- Is derivation governed by legal entitlement, receipt, or appropriate accounting method?
- When is a cash basis justified, and when is accrual required?
- How does the “come home” test operate in modern s 6-5 analysis?
Please see below link to case materials which is assumed reading in order to participate in the discussion:
Official Judgement
Commissioner of Taxes (SA) v Executor Trustee and Agency Company of South Australia Limited
Text based version
Commissioner of Taxes (South Australia) v Executor Trustee and Agency Co of South Australia Ltd
Discussion led by Adrian Cartland.