Payroll tax

Payroll taxes are taxes imposed on employers or employees, and are usually calculated as a percentage of the salaries that employers pay their staff. Payroll taxes generally fall into two categories: deductions from an employee’s wages, and taxes paid by the employer based on the employee's wages. The first kind are taxes that employers are required to withhold from employees' wages, also known as withholding tax, pay-as-you-earn tax (PAYE), or pay-as-you-go tax (PAYG) and often covering advance payment of income tax, social security contributions, and various insurances (e.g., unemployment and disability). The second kind is a tax that is paid from the employer's own funds and that is directly related to employing a worker. These can consist of fixed charges or be proportionally linked to an employee's pay. The charges paid by the employer usually cover the employer's funding of the social security system, and other insurance programs. The economic burden of the payroll tax falls almost entirely on the worker, regardless of whether the tax is remitted by the employer or the employee, as the employers’ share of payroll taxes is passed on to employees in the form of lower wages than would otherwise be paid.

The Australian federal government (ATO) requires withholding tax on employment income (payroll taxes of the first type), under a system known as pay-as-you-go (PAYG).

The individual states impose payroll taxes of the second type.

In Bermuda, payroll tax accounts for over a third of the annual national budget, making it the primary source of government revenue. The tax is paid by employers based on the total remuneration (salary and benefits) paid to all employees, at a standard rate of 14% (though, under certain circumstances, can be as low as 4.75%). Employers are allowed to deduct a small percentage of an employee's pay (around 4%). Another tax, social insurance, is withheld by the employer.

In Brazil employers are required to withhold 11% of the employee's wages for Social Security and a certain percentage as Income Tax (according to the applicable tax bracket). The employer is required to contribute an additional 20% of the total payroll value to the Social Security system. Depending on the company's main activity, the employer must also contribute to federally funded insurance and educational programs.

...
Wikipedia