INCOME TAX (RATES) AMENDMENT ACT 1977
No. 42 of 1977
An Act to amend the Income Tax (Rates) Act 1976.
BE IT ENACTED by the Queen, and the Senate and House of Representatives of the Commonwealth of Australia, as follows:—
Short title.
1. This Act may be cited as the Income Tax (Rates) Amendment Act 1977.
Commencement.
2. This Act shall come into operation on the day on which it receives the Royal Assent.
Indexation.
3. Section 9 of the Income Tax (Rates) Act 1976 is amended—
(a) by omitting from sub-section (1) the definition of “index number” and substituting the following definition:—
“‘index number’, in relation to a quarter, means the All Groups Consumer Price Index number, being the weighted average of the 6 State capital cities, published by the Australian Statistician in respect of that quarter;
(b) by omitting from sub-section (3) the words “number ascertained” and substituting the words “number (calculated to 3 decimal places) ascertained, as at the date on which the index number for the March quarter immediately preceding that relevant year of income was first published,”;
(c) by inserting after sub-section (3) the following sub-sections:—
“(3a) Subject to sub-section (3b), if at any time, whether before or after the commencement of this sub-section, the Australian Statistician has published or publishes an index number in respect of a quarter in substitution for an index number previously published by him in respect of that quarter, the publication of the later index number shall be disregarded for the purposes of this section.
“(3b) If at any time, whether before or after the commencement of this sub-section, the Australian Statistician has changed or changes the reference base for the Consumer Price Index, then, for the purposes of the application of this section after the change took place or takes place, regard shall be had only to index numbers published in terms of the new reference base.
“(3c) Where the factor ascertained in accordance with sub-section (3) in relation to a relevant year of income would, if it were calculated to 4 decimal places, end with a number greater than 4, the factor ascertained in accordance with that sub-section in relation to that relevant year of income shall be taken to be the factor calculated to 3 decimal places in accordance with that sub-section and increased by 0.001.”;
(d) by omitting the word “and” from the end of paragraph (a) of sub-section (5); and
(e) by adding at the end of sub-section (5) the following word and paragraph: —
“; and (c) the extent (if any) that the factor ascertained in accordance with sub-section (3) in relation to that relevant year of income was greater than it would have been but for the effects on the index number in relation to any quarter of—
(i) the imposition of the health insurance levy, and the increase in the cost of health insurance, in the quarter that ended on 31 December 1976; and
(ii) the adjustment to the trade weighted value of the Australian dollar announced on 28 November 1976 and subsequent adjustments to that value made after that date and not later than 31 December 1976.”.
Overview
The Income Tax (Rates) Amendment Act 1977 was enacted to amend the Income Tax (Rates) Act 1976, addressing the need for updated indexation methods in calculating tax rates to reflect changes in the economy. Enacted by the Queen, and the Senate and House of Representatives of the Commonwealth of Australia, this Act sought to ensure that the tax system could adapt to economic shifts, particularly those related to inflation and currency fluctuations. The primary policy objective was to maintain the integrity of the tax system by ensuring that tax rates and thresholds are regularly updated to reflect the true economic conditions, thus preventing the erosion of tax base due to inflation and other economic factors. This was achieved by revising the indexation process to use the All Groups Consumer Price Index number and adjusting for specific economic events such as the health insurance levy and changes in the trade weighted value of the Australian dollar.
Scope and Application
The Income Tax (Rates) Amendment Act 1977 applies to the Commonwealth of Australia and amends the Income Tax (Rates) Act 1976, impacting the calculation of index numbers used to adjust income tax rates in line with inflation. This Act applies to individuals and entities subject to income tax under the Commonwealth's jurisdiction, affecting their taxable income and consequently their tax liabilities. The Act mandates the use of the All Groups Consumer Price Index number, as published by the Australian Statistician, to determine the index numbers for the purpose of calculating tax rates. Additionally, the Act provides specific provisions to disregard any subsequent changes in the index numbers and to adjust for certain economic events, such as the health insurance levy and adjustments to the trade weighted value of the Australian dollar. This Act does not explicitly state any exclusions, exemptions, or thresholds but allows for its provisions to be further defined or expanded through subordinate instruments.
Key Provisions
The Income Tax (Rates) Amendment Act 1977 (No. 42 of 1977) amends the Income Tax (Rates) Act 1976. The primary amendments relate to the indexation of tax rates. Section 9 of the Income Tax (Rates) Act 1976 is revised to redefine the term “index number” to mean the All Groups Consumer Price Index number for a given quarter, published by the Australian Statistician (section 3(a)). The Act also modifies the calculation of the index number, specifying that it must be ascertained to three decimal places as at the date of the first publication of the index number for the March quarter preceding the relevant year of income (section 3(b)). Additionally, the Act includes provisions for the substitution of index numbers by the Australian Statistician and adjustments in the reference base for the Consumer Price Index (sections 3(3a) and 3(3b)). It also provides a method for rounding the index factor, ensuring it ends with a number not greater than 4 (section 3(3c)).
The Act imposes several obligations on the Australian Statistician and taxpayers. The Australian Statistician must ensure that index numbers are published accurately and consistently. If a substitution occurs, the initial publication must be disregarded (section 3(3a)). Changes in the reference base for the Consumer Price Index require adjustments in the application of the index numbers (section 3(3b)). Taxpayers must account for the indexation of tax rates as per the calculations outlined in the Act, ensuring that adjustments due to the health insurance levy and changes in the Australian dollar’s trade-weighted value are appropriately factored into their tax calculations (section 3(5)(c)(i) and (ii)).
Failure to comply with the provisions of the Act can result in significant consequences. While the Act does not explicitly state offences, penalties, or consequences for non-compliance, breaches of tax laws generally carry severe civil and criminal penalties under broader tax legislation. Under the Income Tax Assessment Act 1936, penalties for non-compliance can include substantial fines, imprisonment, or both. For instance, penalties for providing false or misleading statements can result in fines of up to $18,000 for individuals and significantly higher amounts for corporations. Additionally, taxpayers who deliberately attempt to evade tax may face criminal prosecution, leading to penalties that include substantial fines and imprisonment terms that vary based on the severity of the offence.