PTO Sources and References
When our guides, reference terms, and calculator notes explain US workplace leave concepts, benefit statistics, or tax withholding rules, we cite official federal agencies and primary public resources.
U.S. Department of Labor (DOL)
The Fair Labor Standards Act (FLSA) does not require payment for time not worked, such as vacations, sick leave, or federal or other holidays. These benefits are matters of agreement between an employer and an employee (or the employee’s representative), subject to state and local laws.
- U.S. Department of Labor – Vacation Leave
Official DOL overview of vacation leave under federal labor standards. (https://www.dol.gov/general/topic/benefits-leave/vacation_leave)
- U.S. Department of Labor – Sick Leave
Official DOL guidance on paid and unpaid sick leave rules. (https://www.dol.gov/general/topic/workhours/sickleave)
- U.S. Department of Labor – Benefits and Leave
Federal topic portal covering employee leave programs and benefit topics. (https://www.dol.gov/general/topic/benefits-leave)
Bureau of Labor Statistics (BLS)
The National Compensation Survey – Employee Benefits in the United States provides official statistics on average paid vacation days, paid holidays, and consolidated PTO plans across private industry and state/local government workers.
- Bureau of Labor Statistics – Employee Benefits in the United States (EBS)
Official US data on paid vacation, sick leave, and paid time off prevalence and averages. (https://www.bls.gov/ebs/)
Internal Revenue Service (IRS)
Lump-sum cash-outs of unused accrued vacation or paid time off are treated as taxable wages under federal tax regulations (see IRS Publication 15 / Circular E regarding supplemental wage withholding).
- Internal Revenue Service (IRS)
Official federal tax guidance on wage income and supplemental wage withholding. (https://www.irs.gov/)