In 2019, however, the statement’s name was changed to the snappier, more enticing and informative Tax Benchmarks and Variations Statement. What a page-turner.

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When the latest statement, for 2021, was published a few weeks ago, Dr John Hawkins, of the University of Canberra – in an earlier life, a senior Treasury official – used an article on the universities’ The Conversation website to explain that the name change reflects the truth that the amount of tax the government forgoes by granting a certain tax concession isn’t necessarily the same as the amount of tax it would regain if it abolished the concession.

Why not? Because when you make certain actions “tax-preferred”, people become more likely to take those actions, whereas when those actions cease to be tax-preferred people become less likely to take them.

But there’s another, less-defensible reason for switching to a title that will make tax expenditures even less visible than they already are. In the main, when governments want to help people in the bottom half of the distribution of incomes, they pay them money or buy things for them. But when governments want to help people in the top half of the distribution, they give them tax breaks.

(Hawkins points to one exception to that rule: the exemption of fresh food from the goods and services tax favours the poor over the rich because fresh food accounts for a higher proportion of the spending of the poor.)

If you’re well-off, and so have to pay proportionately more tax to support government spending to help those not doing as well as you are, it suits you for government spending to be highly visible and regularly scrutinised by politicians looking for ways to save money.

Conversely, it suits you for the support you get from the government to come in the form of tax concessions and thus be hidden from the public’s and the politicians’ view.

Hawkins notes that the biggest annual tax expenditures are: $64 billion because private homes are exempt from tax on any capital gain when they’re sold; $23 billion because the earnings on money in superannuation funds are taxed at a concessional rate; $21 billion because contributions to super funds are taxed at a concessional rate; and $12 billion because capital gains are taxed at only half the rate that income from “personal exertion” (work) is taxed.

Last financial year, the top 10 tax expenditures totalled just under $120 billion, which compares with total actual tax collections by the federal government of $460 billion. This year, 2021-22, the cost’s expected to be $150 billion. That increase of almost a quarter is explained mainly by the boom in house prices and share prices.

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While tax expenditures primarily benefit the individual taxpayers who receive them, there’s a flow-on benefit to the industries conducting the economic activity that’s getting favourable tax treatment.

One stand-out is the property industry – developers, builders and real estate agents – which sees itself as benefiting from negative gearing and the 50 per cent discount on capital gains tax.

Another stand-out is the superannuation industry. It’s selling a product that’s heavily subsidised by the government – apart from the small fact that the government compels employers to buy its product on behalf of their employees.

The super industry has led claims that Treasury’s estimates of the value of tax expenditures are overstated. But Hawkins notes that its estimates of the revenue gained by canning a tax break don’t differ greatly from its estimates of revenue forgone.

A final “benefit” from the near invisibility of tax expenditures is that it allows recipients to delude themselves – and others – that they’re not dependent on government handouts.

John Roskam, boss of the Institute of Public Affairs, has written to correct my memory of an exchange between us more than a decade ago, as recounted in earlier editions of this column. I had written that the institute was “taxpayer-subsidised”. He wrote denying my claim. I replied that, since its donations were tax-deductible, this amounted to a subsidy from the taxpayer. He objected that I didn’t describe other government-supported organisations in this way.

Ross Gittins is the economics editor

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