inverse_income: Inverse income tax functions
In grattan: Australian Tax Policy Analysis

inverse_income

R Documentation

Inverse income tax functions

Inverse income tax functions

inverse_income(
  tax,
  fy.year = "2012-13",
  zero.tax.income = c("maximum", "zero", "uniform", numeric(1)),
  ...
)

`tax`	The tax payable.
`fy.year`	The relevant financial year.
`zero.tax.income`	A character vector, ("maximum", "zero", "uniform", numeric(1)) Given that many incomes map to zero taxes, the `income_tax` function is not invertible there. As a consequence, the inverse function's value must be specified for tax = 0. "maximum" returns the maximum integer income one can have with a zero tax liability; "zero" returns zero for any tax of zero; "uniform" provides a random integer from zero to the maximum income with a zero tax. The value can also be specified explicitly.
`...`	Other arguments passed to `income_tax`. If `tax` or `fy.year` are vectors, these should be named vectors.