Tax behavior controls how an allowance, deduction, or payroll item affects taxable income and payroll taxes.
Common categories include:
An employee earns $2,000 and receives a taxable car allowance of $150.
Taxable income becomes $2,150 before tax is calculated.
An employee earns $2,000 and has a before-tax pension deduction of $100.
Taxable income may be reduced to $1,900, depending on the country's payroll rules.
An employee earns $2,000 and has a loan deduction of $100 after tax.
Tax is calculated first, then the $100 is deducted from net pay.