What did the paper define an average workers as?
I do not disagree with you, but you may be arguing apples to oranges. You need to know how they derived their numbers and that is a detail in the paper. It is not my claim, it is the number that is reported by the Australian government. So if you differ with them, then point what is wrong with their definition, giving your definition really does not help explain the differences.
I disagree with the conclusion, which seems to be a widely-held fallacy, that U.S. taxes are lower than in most industrialized nations.
I don't think the paper (nor most other comparisons, formal or casual) takes into account all of the other taxes that Americans pay in addition to federal and state/local income taxes.
Some taxes, like the bridge and tunnel tolls where I live, cost several thousands dollars a year. And no, I can't consider them as "user fees" because the revenue does not go to support the resource that is being used.
The bridges are falling down due to neglect, while the toll revenue is diverted almost in its entirety to mass transit. So it's a tax, not a user fee.
The tax that irks me the most is the LLC tax filing tax, which literally is a tax imposed for the privilege of filing my tax return.
The other factor that has to be considered is what is received in return for taxes paid. And frankly, I have no idea what Australians receive, other than medical care. I've never been to Australia and I don't know any Australians well enough to ask.
I do have a lot of friends in Canada, however, and I've been there quite a bit. Canadian taxes are are higher than in the U.S. at first glance, but they also get some sort of tax rebate ("prebate" may be a better description) based on family size. I think it's four times a year. I
think they also get some sort of subsidy to buy school supplies for their children.
They also get most of their medical care for free, although most of my Canadian friends say HealthCanada is okay for routine preventative care, but sucks if you actually get sick. One even stayed at my place while paying cash to have a series of diagnostic tests performed in New York, rather than waiting three or four months to have them done in Canada.
But for whatever it's worth, they do get some sort of health care in Canada. Not that I advocate doing the same here, mind you. I'm just pointing out that there is some tangible return.
So yeah, you're right. It's apples and oranges to compare national taxation rates, for many reasons. I just get a bit miffed and perplexed when people tell me that my taxes are low, when more than half the money I take in goes into government hands -- while I struggle to pay the rent, lights, etc. every month.
-Rich