Disposable Income
In the context of payroll and legal definition in the United States, disposable income is the amount of an individual’s earnings that remain after all of the legally mandated deductions have been made. It is the basis for calculating an employee’s available disposable income for personal expenditure and, where appropriate, as the basis for calculating the amount of any wage garnishment action against the employee.
The basic calculation is as follows:
Disposable Income = Gross Earnings − Mandatory Tax Withholdings
Gross income is defined to include all forms of taxable compensation - wages, salaries, bonuses, all over time pay etc. Mandatory deductions include, among other items, Federal income taxes withheld, any applicable state and local income taxes, and payroll taxes to fund Social Security and Medicare; however, voluntary deductions are excluded from this calculation.
Disposable income is a very important measurement for purposes of both state and federal wage and hour laws as it defines the maximum amount of an employee’s income that can be the subject of a creditor’s actions.
Disposable Earnings for Wage Garnishment
For garnishment purposes, disposable earnings are calculated in accordance with the Consumer Credit Protection Act (CCPA). The calculation follows a strict methodology:
- Determine gross earnings for the pay period.
- Subtract only legally required deductions, including federal, state, and local income taxes, Social Security tax, and Medicare tax.
- Exclude voluntary deductions, such as health insurance premiums, retirement contributions, or union dues.
The remaining amount constitutes disposable earnings.
Example Calculation
Gross earnings: $3,000
Mandatory deductions:
- Federal income tax: $300
- State income tax: $150
- Social Security tax: $186
- Medicare tax: $43.50
Total mandatory deductions: $679.50
Disposable earnings:
$3,000 − $679.50 = $2,320.50
Federal Garnishment Limits
Under federal law, most wage garnishments are limited to the lesser of:
- 25% of an employee’s disposable earnings, or
- The amount by which disposable earnings exceed 30 times the federal minimum hourly wage
Exceptions apply for certain obligations, including child support, federal tax liabilities, and federally guaranteed student loans, which are governed by separate statutory rules.