New Hire Probationary Period: What Small Business Owners Need to Know
How to set up a new hire probationary period at a small business. Free policy template, review checklist, and the legal basics every owner needs to know.
New Hire Probationary Period: What Small Business Owners Need to Know
A practical guide to setting up and running a probationary period policy for businesses with 5–50 employees. Includes a free policy template, review checklist, and the legal basics every employer needs to understand.
A new hire I brought on at a startup years ago was clearly struggling at the six-week mark. Missing deadlines, disengaged in team meetings, producing work that needed repeated revisions. I knew it. The team knew it. But because there was no structured evaluation point in our process, I kept delaying the conversation, hoping things would improve.
They did not improve. We parted ways at month four, after the team had absorbed three months of friction that could have been addressed at week six with a clear policy and a scheduled review.
A probationary period policy would not have made the hire work out. But it would have given both of us a defined moment to have an honest conversation about whether it was working. That is the entire point of the tool.
What is a new hire probationary period?
A new hire probationary period is a defined timeframe, typically 30, 60, or 90 days, during which an employer evaluates a new employee's job performance, cultural fit, and suitability for the role. While not legally required in most US states, probationary periods give small businesses a structured framework for making retention decisions during the critical first months of employment.
The probationary period is an employer-defined management tool. It has no standardized legal definition at the federal level. There is no government form to file, no minimum or maximum duration mandated by federal law, and no official status change that occurs when a new hire enters or exits a probationary period. It is a policy that exists because the employer chose to create it.
For small businesses with 5 to 50 employees, the probationary period serves three practical purposes: it creates a calendar-anchored decision point for retention, it communicates performance expectations clearly at hire, and it establishes a documentation baseline that matters if the employment ends during or shortly after the period.
Is a probationary period legally required?
No. Probationary periods are not legally required in 49 of 50 US states. The United States operates primarily on at-will employment, meaning either party can end the employment relationship at any time, with or without cause, regardless of whether a probationary period exists or has ended.
The most important legal point for small business owners: a probationary period does not give you more legal protection to terminate an employee. In at-will states, you could terminate without cause before or after probation. The period does not create a legal window during which dismissal is easier or harder. It is a management structure, not a legal mechanism.
One area where probation does intersect with law is health benefits. The Affordable Care Act allows employers with 50 or more full-time equivalent employees to impose up to a 90-day waiting period before health coverage begins. Many smaller employers align their probationary period with this window for administrative simplicity, even though they are not subject to the ACA employer mandate.
| State type | At-will? | Probation legally required? | Key note |
|---|---|---|---|
| 49 US states | Yes | No | Either party can terminate at any time, with or without cause |
| Montana | No | No (but has teeth after) | Good cause required for termination after probation ends. Define period in writing. |
| Federal employees | Separate framework | Separate framework | Title 5 USC governs: not covered in this article |
Why small businesses should (and should not) use a probationary period
The decision to implement a probationary period is not obvious. There are real benefits and real limitations. Research from Gallup consistently shows that only 12% of employees strongly agree their company onboards well. A structured probationary period is one of the simplest ways to close that gap. The most important thing is understanding both the benefits and the limitations before writing the policy.
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See How It WorksHow to set up a probationary period policy: step by step
Most small businesses that implement a probationary period do so informally: a verbal mention of "the first 90 days" during the offer conversation, with no written policy, no criteria, and no scheduled review. This provides the burden without the benefit. A properly implemented probationary period requires five elements.
Step 1: Define the duration
Choose one standard duration and apply it consistently: 30, 60, or 90 days. Ninety days is the most common choice for small businesses because it aligns with the ACA benefits waiting period, provides time to evaluate across multiple projects, and mirrors the natural structure of the first quarter of employment. Whatever you choose, write it down and apply it to every new hire in the same role category.
Step 2: Write the evaluation criteria before the hire starts
The criteria should be specific to the role and shared with the new hire on Day 1. Generic criteria like "good attitude" or "team player" are not measurable and create ambiguity that works against both the employer and employee. Role-specific criteria might include response time targets, output volume expectations, specific project milestones, or defined competency demonstrations. Three to five concrete criteria per role is the right scope.
Step 3: Schedule the reviews before Day 1
Put the 30-day, 60-day, and 90-day review dates on the calendar before the new hire starts. Reviews that are not calendared tend not to happen. The check-in at Day 30 is a progress conversation, not a pass/fail evaluation. Day 90 is the formal probationary review where the employment status decision is made and documented.
Step 4: Document as you go
Keep brief written notes after each check-in: what was discussed, what feedback was given, what the employee committed to. This does not need to be a formal review form for every interaction. A few sentences in the employee file after each meeting is sufficient. If the probationary period ends in termination, these notes are the record of the decision process.
Step 5: Communicate the outcome in writing
When the probationary period ends, notify the employee in writing. If they pass, a brief email confirming transition to regular employment status, signed acknowledgment of the completed review, and benefits enrollment instructions if applicable. If the period is extended or employment ends, document the reason, the timeline, and the decision in writing before the conversation happens.
Free probationary period policy template
The template below covers the essential elements of a small business probationary period policy. Copy it, fill in the bracketed fields, and have a legal or HR professional review before first use if your state has specific at-will or termination requirements. The at-will language in Section 7 is the most important element: never omit it.
Effective Date: [Date]
Applies to: All new hires in their first [30 / 60 / 90] days of employment
Employee signature: _________________________ Date: ____________
Manager signature: __________________________ Date: ____________
Once completed, this document should be signed by the new hire at the start of employment and retained in their personnel file. It can be delivered digitally for e-signature alongside other onboarding documents, which reduces Day 1 paperwork handling and creates an automatic completion record. Include the signed policy as part of your employee onboarding checklist.
Probationary period vs. onboarding: what is the difference?
These two concepts cover the same timeframe but serve entirely different purposes. Employers who confuse them tend to run the probationary period as though it is a pass/fail test rather than a development process, which undermines both.
| Dimension | Probationary period | Onboarding plan |
|---|---|---|
| Purpose | Evaluate employment status and fit | Structure learning and productivity ramp-up |
| Primary question | Should this person stay? | How do we set this person up for success? |
| Owned by | HR policy / employer | Manager + new hire |
| Main output | Documented retention decision | Trained, integrated employee |
| Ends when | Policy period expires | Employee reaches full productivity |
| Legal relevance | Employment status, benefits waiting period | None (development framework) |
In practice, the probationary period and the onboarding plan run in parallel. The onboarding plan structures what the new hire learns and does each week. The probationary period creates the formal evaluation checkpoint at the end of that process. The 30-60-90 day onboarding plan defines the milestones. The probationary period policy defines how those milestones are formally assessed and documented.
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See It in ActionManaging probationary reviews and check-ins
The review process is where most small business probationary periods fail. The policy exists on paper, the 90-day date arrives, and the manager either cancels the review because things seem fine or has a conversation with no preparation and no documentation. Neither approach serves the employer or the employee.
A well-run probationary review follows a consistent structure regardless of the outcome. Use the checklist below for every 90-day review.
The 90-day review is also one of the best moments to gather feedback from the new hire about the onboarding experience. Ask directly: what was unclear, what surprised them, what would have helped in the first month. This data improves your process for the next hire. For structured guidance on what to ask, the new employee performance review guide covers the complete review framework including example questions and documentation templates.
State-by-state considerations for small businesses
At-will employment is the law in 49 states, which means probationary periods work the same way across most of the US. However, a few state-level nuances are worth knowing before you finalize your policy.
| State | At-will? | Key consideration |
|---|---|---|
| Montana | No | Define a specific probationary period duration in writing. After it ends, you need good cause to terminate. Default is 6 months if undefined. |
| California | Yes | Ensure your policy language does not imply an employment contract. California courts have found implied contracts in handbook language. The at-will statement in Section 7 of the template is critical. |
| New York | Yes | Generally straightforward at-will state. New York City adds protected class categories beyond federal law: ensure termination reasons do not implicate any. |
| Texas | Yes | Standard at-will state. No state-specific probationary period requirements. |
| All other states | Yes (with exceptions) | Standard at-will employment applies. Check state-specific protected class laws before any termination decision. |
This overview covers the most common scenarios for small businesses. If you are in Montana, or if your employment policies have been drafted without explicit at-will language, consult an employment attorney before implementing or updating your probationary period policy. The template in this article includes the at-will language, but every state context is different.
Once you have your probationary period policy finalized, it belongs in your employee handbook and your new hire packet. Track the 30-, 60-, and 90-day review dates in your task workflow so they do not fall through the cracks when onboarding multiple hires at once. The onboarding best practices guide covers how to structure the full first-90-days process alongside the probationary period framework.
For businesses hiring in California specifically, the state's additional documentation requirements for new employees mean the probationary period policy sits alongside a longer required paperwork stack. The California new hire paperwork guide covers every required form and notice in detail.
- A probationary period is a management tool, not a legal requirement. In 49 of 50 US states, at-will employment already gives employers full termination flexibility. The period creates structure, not new legal rights.
- The policy only works if it has written criteria shared on Day 1, scheduled reviews at 30 and 90 days, and documented outcomes. A verbal 90-day probation with no written policy provides the burden without the benefit.
- Montana is the only exception. After a defined probationary period ends in Montana, you need good cause to terminate. Define the period duration in writing before the hire starts.
- Probationary period and onboarding plan are not the same thing. Run them in parallel: the onboarding plan structures development, the probationary period structures evaluation.
- The 90-day review is a formal documented decision point, not a check-in. Prepare specific examples, decide the outcome in advance, document the result in writing, and have the employee sign the review.
Frequently Asked Questions
What is a probationary period for a new employee?
A new hire probationary period is a defined evaluation timeframe, typically 30, 60, or 90 days, during which the employer formally assesses the new employee's performance, fit, and suitability for the role. It is employer-defined, not legally mandated in most US states, and only effective when implemented with written criteria, scheduled reviews, and documented outcomes. The period does not change the at-will employment relationship in states where at-will employment applies.
Is a probationary period legally required?
No. Probationary periods are not legally required in the United States in 49 of 50 states. They are an employer-defined management tool. Montana is the only exception: the Wrongful Discharge from Employment Act requires good cause for termination after a probationary period ends, making the definition and documentation of the period legally significant for Montana employers.
Can you fire someone during a probationary period?
Yes, in at-will employment states. At-will employment means either party can end the employment relationship at any time, including during a probationary period, with or without cause, as long as the reason is not illegal. A probationary period does not create a special legal window where termination is easier or harder. All standard employee protections, including anti-discrimination and whistleblower protections, apply during the probationary period exactly as they do at any other time.
How long should a probationary period be?
Ninety days is the most commonly used duration for small businesses. It aligns with the ACA health benefits waiting period, provides time to evaluate performance across meaningful work, and matches the natural structure of the first quarter of employment. Thirty-day periods are appropriate for high-volume, lower-complexity roles. Sixty-day periods work for mid-complexity roles. For senior roles or those with a long ramp-up, some employers use 180-day periods. Whatever you choose, apply it consistently and write it into your policy.
Do employees get benefits during a probationary period?
It depends on your policy. The ACA permits employers with 50 or more full-time equivalent employees to impose up to a 90-day waiting period before health insurance takes effect. Smaller employers can also use a waiting period by choice. Many small businesses align the probationary period and benefits start date for administrative simplicity. Paid time off, 401k eligibility, and other benefits have separate eligibility rules defined by each plan. Whatever your policy, it must be stated clearly in the written probationary period policy provided at hire.
What happens after a probationary period ends?
The employee transitions to regular employment status. Best practice is a formal written review, a signed acknowledgment from the employee, written notification of the status change, and: if you use a benefits waiting period: coordination of health insurance enrollment. Completing the probationary period does not guarantee continued employment, alter the at-will relationship, or create an employment contract. Document the completion in the personnel file the same day as the 90-day review. For the complete review structure, see the new employee performance review guide.
Can you extend a probationary period?
Yes. Extension is appropriate when an employee is progressing but has not yet reached all criteria, or when a legitimate disruption occurred early in the period. Extension must be done in writing with a specific new end date, a clear statement of what remains to be demonstrated, and a defined check-in schedule. Do not extend more than once. A second extension usually signals a decision that should be made.