Definition · HR operations and employee relations
Probationary Period
Definition
Probationary periods are set windows at the start of employment, commonly 60 to 90 days in the US, during which the employer and new hire assess fit and performance more closely. The period often comes with closer check-ins and delayed eligibility for some benefits or leave, and it should be reviewed formally at the end.
Also called: Probation period, Introductory period, 90-day probation, Trial period, Orientation period
How a probationary period works
The employer states the length of the period in the offer letter or employee handbook, along with what applies during it. Common features:
- Structured check-ins at fixed points, often 30, 60 and 90 days
- A formal end-of-period review: pass, extend or end employment
- Delayed eligibility for some company-provided items such as PTO accrual use, tuition support or internal transfers
- In unionized workplaces, limited access to the grievance procedure until the period is complete, as set by the collective bargaining agreement
The period is an employer practice, not a legal status. In the US no federal law requires one, and federal laws on discrimination, wage and hour, and leave apply from the first day. Other countries are different: many set statutory maximums for probation and shorter notice periods during it, so global employers need country-specific rules.
Probationary period and at-will employment
In most US states employment is at-will, meaning either side can end it at any time for any lawful reason. That causes a real problem with careless probation language. If the handbook says "after 90 days you become a permanent employee", a court in some states may read that as a promise that the employer now needs cause to terminate.
Practitioners avoid the word "permanent" and add a sentence that completing the introductory period does not change at-will status. This is also why many employers now say "introductory period" instead of "probation". The meaning is the same, the legal baggage is lighter. Rules vary by state; Montana, for example, limits at-will termination after a probationary period, so check local law.
How long probation should last
For hourly and entry-level roles, 60 to 90 days is typical. It covers training, a few weeks of independent work and enough data to judge attendance and quality. For salaried professional roles, 90 days to six months is common, because results take longer to show.
In a contact center, align the period with the ramp. If classroom training is three weeks and nesting is three weeks, a 90-day period gives about six weeks of live production against a ramp target. Ending probation at day 45 would mean judging people before they have taken calls on their own.
Allow one extension, typically 30 days, when the employee is improving but not yet there. Put it in writing with specific targets.
A worked example: a 90-day plan for a new hire
Tom joins a regional bank's operations center as a payment exceptions analyst. His manager, Angela, uses a simple 30-60-90 day plan:
- Day 30: completes system training, processes 20 exceptions a day with a mentor reviewing every item, quality at 95% or above. Check-in: 30 minutes, notes in the HR system.
- Day 60: works independently at 35 a day, quality 97%, only complex items escalated. Check-in covers attendance and fit with the team.
- Day 90: at or near the 45-a-day standard with 98% quality. Formal review: Angela recommends confirmation, HR records it, and Tom becomes eligible for internal postings.
Because each check-in had numbers and notes, there is no debate at day 90. If Tom had been at 25 a day with falling quality, Angela would have had three documented conversations to support an extension or a decision to end employment.
Why it matters for high-volume hiring
Early attrition is concentrated in the first 90 days. In hourly roles, a significant share of all first-year leavers go in that window, and new hire turnover is often the most expensive recruiting metric no one watches. A structured probation period does two jobs at once: it gives the employer a clear decision point and it forces managers to have regular conversations with new hires, which on its own tends to reduce early quits.
Track probation outcomes by recruiting source, recruiter and hiring manager. If one job board's hires fail probation at twice the rate of referrals, that is a sourcing decision, not just an HR statistic.
Common mistakes
- No end-of-period review. The date passes and nobody notices, which undermines the point of having one.
- Using probation to delay required benefits. Eligibility for things like overtime pay, minimum wage, paid sick leave mandated by state law and health coverage under ACA rules is set by law and plan terms, not by probation.
- Treating it as a free termination window. Discrimination and retaliation protections apply from day one.
- Terminating without notes. A day-80 termination with no check-in records is hard to explain later.
Frequently asked questions
What is a 90-day probation period?
It is a common introductory window for new hires, especially in hourly roles, during which the employer closely reviews performance and attendance before confirming the employee in the role.
Can you be fired during a probationary period?
Yes, but in the US employment is usually at-will throughout, so the same is true after probation. Termination for discriminatory or retaliatory reasons is unlawful at any point.
Is a probation period the same as an introductory period?
Yes. Many employers use introductory period to avoid any suggestion that finishing it creates permanent or for-cause employment.
Do you get benefits during a probationary period?
It depends on the employer's plans and the law. Some voluntary benefits start after the period, but legally required items such as minimum wage, overtime and state-mandated sick leave apply from day one.
Can a probationary period be extended?
Usually yes, if the policy allows it. Extend once, in writing, with specific targets and a new end date.