BACKGROUND FACTS
3 MLC has been involved in 'funds management' businesses for many decades. It is the responsible entity (pursuant to Pt 5C.2 of the Corporations Act 2001 (Cth)) for approximately 135 trusts. Many of these are organised into related groups. They include:
(a) the MasterKey Unit Trusts (MUTs);
(b) the MasterKey Approved Deposit Funds (ADFs);
(c) the Cash Management Trust (CMT); and
(d) the MLC Investment Trusts (MLCITs).
4 This proceeding concerns the following four new MUTs ('the new MUTs'):
· the MLC MasterKey Unit Trust Share Portfolio;
· the MLC MasterKey Unit Trust Conservative Growth Portfolio;
· the MLC MasterKey Unit Trust National Balanced Fund; and
· the MLC MasterKey Unit Trust National Capital Stable Fund.
5 MLC's MasterKey Unit Trust Prospectus No 23, issued on 5 June 2002 with an expiry date of 1 July 2003, shows that 'the MLC MasterKey Unit Trust' consists of thirteen MUTs which pre-existed the establishment of the new MUTs, and the new MUTs - a total of seventeen MUTs. (I will call the MUTs which pre-existed the establishment of the new MUTs 'the existing MUTs', but there are discrepancies in the evidence, unimportant for present purposes, as to the number of the existing MUTs (there are suggestions variously of 13, 15 and 16).
6 The ADFs are a suite of ten related trusts designed for the investment of superannuation roll-overs, but they are now 'closed', in the sense that they are not issuing new units, although existing investors have the capacity to switch between the ADFs.
7 The CMT is a single fund which enables investors, rather like the holder of a savings bank account, to invest and withdraw cash.
8 The MLCITs are a suite of eleven related 'mezzanine trusts' which provide platforms through which MLC's various investment vehicles can access MUTs at a wholesale level.
9 Prior to the Decision, the Commissioner had granted leave for the existing MUTs, the ADFs and the CMT ('the existing Funds') to adopt SAPs ending on 31 May. The accounts of those entities have been, and continue to be, prepared accordingly.
10 The SAPs were granted progressively from the early 1980s as the various trusts were established. Copies of the applications in the 1990s for SAPs and the corresponding letters of approval are in evidence. The most recent successful application for a SAP was made in 1995, the approval having been communicated by letter dated 16 May 1995 from the Australian Taxation Office ('the ATO') to MLC's advisers, Greenwoods and Freehills ('G&F').
11 On 4 July 2001 G&F wrote to the Commissioner advising that the new MUTs were settled on 14 June 2001 and were due to accept subscriptions for units from 1 July 2001. On behalf of MLC, G&F applied for a SAP ending 31 May in lieu of the following 30 June. The letter informed the Commissioner that MLC was the trustee of 26 named trusts, comprising the existing MUTs, the CMF and the ten ADFs. The letter said that the existing MUTs and the new MUTs came under the umbrella of 'MLC MasterKey Unit Trusts'. It pointed out that the existing Funds all returned their income based on a SAP ending 31 May. The letter claimed that the granting of approval for the new MUTs to do likewise 'would accordingly be broadly consistent with the policy of having all entities within a group balancing on the same date for tax purposes'. The letter stated that new MUTs would use the same computer system as the existing MUTs and the ADFs. The letter further stated:
'We are advised that it would require an enormous and largely inefficient amount of programming work to enable the system to calculate the income of different trusts should those trusts be required, for taxation purposes, to return income for different periods.
On the above grounds, we request that the Commissioner grant approval for the New Funds to adopt a substituted accounting period ending 31 May in lieu of the succeeding 30 June.
We note that approval was granted in your letter of 16 May 1995 ... to a similar request for a 31 May SAP made by us on 28 March 1994 ... in respect of MLC Emerging Markets Fund (now MLC Capital International Global Share Fund) and MLC Platinum Global Fund. A number of earlier approvals to adopt the year ended 31 May in lieu of the following 30 June have been granted in relation to the other MLC MasterKey Unit Trusts.
We enclose a copy of your letter of approval dated 16 May 1995.'
12 MLC accepted subscriptions to the new MUTs from 1 July 2001.
13 Manuel Thaler had the carriage of the matter at the ATO. He telephoned Jacinta Oner, who had the carriage of the matter at G&F, on 6 September 2001 and 12 September 2001, advising her of his intention not to grant approval, but inviting her to lodge any further information she wished in support of the application. Ms Oner asked Mr Thaler not to give a formal refusal pending receipt of further correspondence from G&F. Mr Thaler agreed to this request.
14 Some six months later, by letter dated 5 March 2002, G&F wrote again to the ATO making a supplementary submission.
15 On 26 April 2002 Mr Thaler telephoned Ms Oner advising her that he still proposed to refuse MLC's application. Ms Oner asked him to delay formalising the refusal to allow her time to obtain instructions from MLC Again Mr Thaler agreed to her request.
16 On 21 May 2002, during a telephone conversation with Tony Watson of G&F, Mr Thaler advised Mr Watson that he was going to issue a letter that day formally refusing MLC's application. Later that day, Mr Thaler sent the letter of refusal to G&F.
17 The letter of refusal referred to two Taxation Rulings which have assumed some importance in the case: IT 2360 ('Income Tax: Substituted Accounting Periods') and IT 2497 ('Income Tax: Substituted Accounting Periods: Large Investment or Property (Unit) Trusts') (see [20] and [21] below). By reference to the language of the two Taxation Rulings, the ATO's letter stated that it was considered that 'exceptional circumstances' were not present, and that the evidence provided on behalf of MLC did not support 'a substantial business need', but, rather, related to 'the convenience of the manager of the trusts' and 'the gaining of a competitive edge over managers of other large unit trusts'.
18 On 24 May 2002, MLC made a request, under s 13 of the ADJR Act, for a statement of the reasons for the Decision. On 28 June 2002 the ATO provided a 13-page statement signed by Mr Thaler of his reasons for the Decision ('Statement of Reasons'). I have found the Statement of Reasons helpfully detailed.