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HR Glossary | 5 minute read

Notice Period

A notice period is the time between when an employee resigns or an employer ends employment and the date the job actually ends. During that window the employee usually keeps working, and the employer plans the handover.

In the US, the length of notice rarely comes from the law. It comes from custom, a contract, or company policy. The main exceptions are specific laws, such as the federal WARN Act for large layoffs.

Does an employee have to give notice in the US?

Not by default. HR Cloud's at-will employment vs contract entry says at-will employment requires no advance notice from either party, and an at-will employee can resign without notice. Employers can end at-will employment without notice too, as long as the reason is lawful.

Two weeks is the custom, not a legal standard. Most employees offer it to protect references and rehire eligibility. Employers should say in the handbook what they ask for, and avoid describing two weeks as mandatory unless a contract says so.

When do contracts and handbooks require notice?

A written agreement can set a notice period for either side. The same entry notes that if an agreement specifies a 30-day notice period, you must provide it. HR Cloud's guide to employment contracts recommends stating the notice required from both parties in the termination terms.

Handbook language is riskier. If a handbook promises a notice period to employees, workers may read it as a commitment. Keep optional expectations separate from binding terms, and put anything mandatory in a signed agreement.

What are pay in lieu of notice and garden leave?

Pay in lieu of notice means the employer ends the job right away and pays what the employee would have earned during the notice period. It is useful when a continuing presence creates risk, such as access to customer data. The agreement should say when this option is allowed and how pay is calculated.

Garden leave keeps the employee on payroll during the notice period but relieves them of work and access. Benefits typically continue, and the employee remains bound by duties such as confidentiality. Both are contract tools, so they work best when the written terms describe them in advance.

Which notice must employers give before layoffs?

The federal Worker Adjustment and Retraining Notification (WARN) Act is the main one. According to the Department of Labor, it covers employers with 100 or more employees and requires at least 60 calendar days of advance written notice of a plant closing or mass layoff affecting 50 or more employees at a single site.

The DOL page says the 100-employee count generally excludes workers who average under 20 hours a week. Some states have their own notice laws, and details such as exceptions are not covered here. Check current federal and state rules before any layoff, and speak with counsel.

How does final pay relate to the notice period?

They are separate questions. Notice sets the last day of work, while state law usually sets when final wages are due after that day. A long notice period does not delay final pay, and a short one does not speed it up.

Write down the last day, the final pay date, and any payout of unused leave in the exit paperwork. Check your state's rules for each, because they differ.

How do notice periods work outside the US?

Several countries set statutory minimums that the US lacks, and they often rise with length of service. In the UK, for example, GOV.UK says an employee must give at least a week's notice after more than a month in the job, and the contract may require longer.

Rules for the notice an employer must give are separate, and they differ by country. For staff or contractors overseas, confirm the local rule before writing terms into an agreement. A US template should not be copied across borders.

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Frequently Asked Questions

Q: Can an employer refuse to let an employee work out their notice?

A: In an at-will setting, usually yes, unless a contract promises the full period. Many employers end the job early and pay through the last planned day, which is pay in lieu of notice. Check any agreement first.

Q: Is two weeks' notice legally required?

A: No, not for at-will employees in the US. It is a professional custom. A contract or written policy tied to employment terms can make a longer period binding.

Q: What should a resignation notice letter include?

A: The employee's name, the date of the letter, the last day of work, and a short statement of resignation. A reason is optional. HR should acknowledge it in writing and confirm the last day.

Q: Should we require employees to work the full notice period?

A: Decide based on role and risk. For roles with access to sensitive systems or client data, a shorter or paid period may fit better. Apply the rule consistently to avoid claims of unequal treatment.

Q: Does the notice period count toward benefits and PTO?

A: Employees are still employed during the notice period, so they usually keep accruing under your plan terms. Benefit end dates are set by each plan, so confirm them with your carriers.

Q: What if an employee leaves without giving notice?

A: In most at-will cases the employer can note it in the file and apply any policy on rehire eligibility. Check final pay rules and any contract before treating the departure as a breach.

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