Being on call can mean anything from carrying a phone at home to sleeping at the workplace, and the pay depends on how restrictive it is. This guide explains the federal rule, the factors that decide whether on-call time is paid, how call-back time counts for overtime and how stipends and sleeping time work.
The federal rule in one paragraph
The Department of Labor's regulation at 29 CFR 785.17 says that an employee who is required to remain on call on the employer's premises, or so close to them that the employee cannot use the time effectively for personal purposes, is working while on call. An employee who is not required to stay on the premises and who is merely required to leave word at home or with company officials about where they can be reached is not working while on call. Two 1944 Supreme Court decisions, Armour & Co. v. Wantock and Skidmore v. Swift & Co., established that waiting time can be work, depending on the facts and circumstances. In practice, on-call pay questions are decided by how much freedom you really have during the on-call period.
The factors that decide whether on-call time is paid
No single factor controls. Courts and the Department of Labor look at the whole picture of how the on-call arrangement restricts your ability to use your time for your own purposes. The factors that come up most often are the following.
- Where you must be. Being required to stay at the workplace or in employer-provided quarters points strongly toward paid time. Being free to be at home or anywhere else points the other way.
- How quickly you must respond. A short required response time, such as being at the site within minutes, limits what you can do and favors compensation. A generous window favors the employer.
- How often you are called. Frequent calls that repeatedly interrupt the period weigh toward paid time, even if each call is short.
- Geographic and personal restrictions. Rules against drinking, leaving the area, being away from a vehicle or having to keep equipment with you can make on-call time effectively work time.
- Whether you can trade or decline on-call shifts, and whether you can engage in personal activities in practice, such as sleeping, shopping, attending a child's game or traveling short distances.
On-call scenarios and the usual federal result
| Scenario | Likely paid? | Reason |
|---|---|---|
| Carry a phone from home, answer within a generous window, called a few times a month | Usually no, until a call comes in | Free to use the time for yourself |
| Stay at the fire station or hospital call room, ready to respond immediately | Yes | Required to remain on the premises |
| Must stay within a few minutes of the site and answer calls every night | Often yes | Response time and call frequency prevent personal use |
| Remote IT support, must log in within a set time, calls are rare | Fact-specific | Depends on how strict the response time is and how often you work |
| On call and receive a $100 weekend stipend, no calls | Hours may still be unpaid | A stipend does not decide whether hours are worked |
| Called in to fix a problem for 45 minutes at 2 a.m. | Yes, for the work time | Time spent actually working is always hours worked |
Time you actually work is always paid
Even when the on-call period is unpaid, the time you spend responding is hours worked. That includes remote work done from home, such as logging in to fix a server, and the time spent traveling to a site in response to a call. Those hours must be counted toward the 40-hour weekly overtime threshold. Consider an employee who earns $25.00 an hour and works a regular 40-hour week. During the week, the employee is on call at home and is called twice, once for 45 minutes of remote work and once for 1 hour 30 minutes, including travel. The call time is 2 hours 15 minutes, or 2.25 hours, and the total is 42.25 hours. Pay is 40 × $25.00 = $1,000.00 plus 2.25 overtime hours at 1.5 × $25.00 = $37.50, which is $84.38. The gross total is $1,084.38. Use the minutes to decimal hours chart to convert minutes, since 45 minutes is 0.75 hours, and the Overtime Pay Calculator to check the result.
Employers often have a minimum call-back period in policies or union contracts, for example paying at least a few hours whenever someone is called in. Federal law does not set a minimum call-back period, but some states have reporting-time or call-in pay laws, and a contract may promise more than the law requires.
On-call stipends and standby pay
Many employers pay a flat amount for being on call, such as $100 for a weekend. A stipend does not by itself decide whether the on-call hours are hours worked. If the restrictions are such that the hours are compensable, the employer must make sure that every hour is paid at least the minimum wage and that overtime is paid for hours over 40, and a flat stipend that does not cover that is not enough. If the hours are not compensable, the stipend is a bonus for availability, and employers differ in how they treat it in overtime calculations. If you receive both stipends and overtime, ask payroll how the stipend is treated in your regular rate; see how bonuses affect overtime pay for the general method.
Sleeping time on long on-call shifts
A special rule applies to employees who are on duty for 24 hours or more, such as firefighters, residential care staff and some caregivers. Under 29 CFR 785.22, the employer and employee may agree to exclude a bona fide regularly scheduled sleeping period of up to eight hours from hours worked, if adequate sleeping facilities are provided and the employee can usually enjoy an uninterrupted night's sleep. If the sleep is interrupted by calls so that the employee cannot get at least five hours of sleep during the period, the entire period is generally treated as working time. Interruptions to perform duties are working time, and the agreement and facilities matter.
State law and contracts
Some state laws and wage orders treat on-call and standby time more broadly than the FLSA, and some require extra pay for being called in or for being on call. Union agreements often set on-call pay rates, call-back minimums and rotation rules. If your state law or contract gives you more than the federal rule, the more generous rule applies. For a broader view of paid and unpaid time, read what counts as hours worked, and for overtime across the week, see how to calculate overtime pay.
How to document on-call time
- Write down every call: date, time received, time you started working, time you finished and whether you traveled.
- Record the restrictions: response time, location limits, equipment you must carry and any consequences for missing a call.
- Total each workweek with the Weekly Time Card Calculator, including the time spent on calls.
- Compare your totals with your pay stub; see how to read a pay stub.
- If call time is unpaid or on-call restrictions seem to make the whole period work time, send payroll a written request listing the dates and hours, then contact the Wage and Hour Division or your state labor agency if the answer is unclear.
Frequently Asked Questions
Is on-call time paid?
It depends on how restrictive it is. If you must stay at the workplace or cannot use the time for your own purposes, it is paid. If you are free to go about your life and just need to be reachable, it generally is not.
Do I get paid when I am called while on call?
Yes. Time spent actually working, including remote work and often travel to the site, is hours worked and counts toward overtime.
Does an on-call stipend satisfy the law?
Not necessarily. A stipend does not decide whether the on-call hours are compensable. If they are, minimum wage and overtime must still be met for every hour.
Is sleeping time on a 24-hour shift paid?
Up to eight hours of bona fide sleeping time may be excluded by agreement if sleeping facilities are adequate and sleep is not seriously interrupted. If the employee cannot get at least five hours of sleep, the entire period is generally paid.
Is there a minimum call-back pay requirement?
Not under federal law. Some states and union contracts have reporting-time or call-in pay rules.
Does on-call time count toward overtime?
Only if it is hours worked. Compensable on-call time and time spent responding to calls count toward the 40-hour weekly threshold.
Related tools & guides
This guide is for general informational purposes only and is not legal, tax, or financial advice. Labor laws vary by state and change over time. Confirm your specific situation with your employer, HR department, or the U.S. Department of Labor.