Taxing companies on profits is a bit like taxing people on disposable income. After all, people are really running their own little business selling their labour. Their health, housing, education, transport are all costs in that business. Take two people earning $45K a year, one is a young person paying off a house or renting, the other is earning a families second income. Many of the basic costs of running their human capital business have already been paid for. If we were to be concerned with fairness we would allow for the differences and tax each person based on their disposable income. Clearly, we don't do this and why would we. We would be subsidising the choices people make and it could be easily manipulated. So why then do we do this for companies?
In our current situation company taxes are a very unstable revenue source for Government. In bad times revenues for company profits collapse as companies report losses and in good times Government revenues boom encouraging unsustainable spend thrift behaviour by Government as we saw in the 2000s. The current system makes the government very exposed to the economic cycle as a company profits are high the amount of taxation government gets goes up dramatically but if the company starts reporting a loss the government gets nothing. The current system also makes the government and other taxpayers exposed to the impact of bad management decisions. As an individuals if my outgoings exceed my ingoings I don't get to stop paying taxation.
What I am suggesting be investigated is a system where we determine a percentage of revenue that is paid in taxation which would be the equivalent of 30% of normal profits. Normal profits are defined in economics as, "the level of profit equal to the opportunity cost of entrepreneurial effort. Normal profits is regarded as the fair reward for the effort the entrepreneur puts into running a firm and the risk that they take on."
The below table shows the impact switching to a revenue tax would have on taxation revenue. In poor times the government would have more revenue and more room for stimulus and better able to fund automatic stabilizers like increased unemployment benefit. In boom times the temptation to bribe voters with unsustainable spending would be reduced. In this example I assume normal profits of 10%. This could be adjusted depended on industry.
Profit Tax
|
Revenue Tax
|
|
Situation 1: Normal Profits
|
||
Revenue
|
100,000
|
100,000
|
Expenses
|
90,000
|
90,000
|
Profit
|
10,000
|
10,000
|
Tax
|
3,000
|
3,000
|
Situation 2: Expenses > Revenue
|
||
Revenue
|
70,000
|
70,000
|
Expenses
|
90,000
|
90,000
|
Profit
|
-10,000
|
-10,000
|
Tax
|
0
|
$2,100
|
Situation 2: Boom Times
|
||
Revenue
|
140,000
|
140,000
|
Expenses
|
90,000
|
90,000
|
Profit
|
$50,000
|
$50,000
|
Tax
|
$15,000
|
$4,200
|

