When we’re reminded that income tax cuts represent merely the partial return of the proceeds of earlier bracket creep, and that the process of clawing back the latest tax cut starts the same day it arrives, it’s easy to join the impassioned cry for tax reform. Sorry, it ain’t that simple.
Surely if we could end the crazy business of bracket creep, we’d pay less tax? Well, yes – but no.
Bracket creep occurs because our income tax scales ignore the reality of inflation. When our wages rise to take account of inflation, we’re no better off in real terms, but we’re often pushed into a higher tax bracket, which raises the average rate of tax we pay on the whole of our income. (If we’re not literally pushed into a higher bracket, our average tax rate still goes up because a higher proportion of our income is now taxed at a higher rate.)
So we’ve long known how to (largely) end bracket creep: do what the Americans do and increase all the bracket limits once a year, in line with the annual increase in the inflation rate. Then, it would only be rises in your real income that pushed up your average tax rate, which is fair enough.
Mission accomplished. Now we’ll all be paying less tax.
Except that the net profit the taxman makes after all the to-ing and fro-ing on bracket creep isn’t just kept in a jam jar somewhere. It’s used to help cover the ever-growing cost of all the services the government gives us, and thus to limit the size of budget deficits and government debt.
So, without the benefit of bracket creep, governments would be forced to keep making explicit increases in the rates of income tax, or to announce new taxes.
Wouldn’t that be an improvement? In principle, yes. In practice, our (politician-fed) aversion to paying higher taxes would just make politics an even bigger shoot-fight than it already is. The pollies would spend more time abusing each other and less time getting on with fixing our problems.
One thing we can be sure of is that it wouldn’t do much to slow the growth in government spending. Why not? Because our demand for more and better government services is insatiable. Because both sides of politics fight every election campaign promising more and better services – and by never showing us the tax price tag on whatever it is they are selling.
How can I be sure tax indexation would do little to slow the growth in government spending? Because that’s what happens in America. They keep running bigger budget deficits and amassing more government debt than the other rich countries (except Japan).
But they get away with it because their economy’s so big, and they’re the centre of the world financial system. A middle-level economy like ours could never pull it off.
So tax indexation isn’t high on my list of desired tax reforms. Bracket creep turns out to be just one of the dirty little tricks by which the politicians who’ve done so much to make our political system almost unworkable keep it staggering along.
It’s easy to agree on the need for tax reform, but its advocates want to reform differing things and have differing motives. “Reform” is a lovely, positive word, but you need to beware of people whose idea of reform is: I pay less, you pay more.
All the alleged reform advocated by the (big) Business Council, for instance, takes that form. They want a lower rate of company tax and a lower top rate of personal income tax – all paid for by a higher goods and services tax.
Spruikers for the highly paid make a big fuss about the government’s heavy reliance on income tax – which they exaggerate – and always claim discourages them from working and investing.
But economic theory doesn’t support these claims, and the empirical evidence – which would be more persuasive – doesn’t either. The people whose behaviour is influenced by the rate of tax on additional earnings are “secondary earners”, who have more ability to increase or decrease the hours they work because they have part-time jobs. But the nation’s executives don’t worry much about them.
No, the tax reform I think we need is higher tax on capital gains, less concessional tax on the superannuation of people such as me, a decent tax on highly profitable mining companies and, probably, a tax on big inheritances.
But don’t hold your breath waiting for that to happen.