WARN Act Calculator

Federal WARN usually requires all of these:

1. Employer has 100+ full-time employees

2. A qualifying plant closure or mass layoff at a single site of employment

3. Notice provided was less than 60 days

4. For mass layoffs: either 500+ employees affected, or 50+ affected and at least 33% of the workforce

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Event type Use plant closure if a site, facility, or operating unit shut down.

Total full-time employees at employer Federal WARN generally applies only if the employer has 100+ full-time employees.

Employees laid off in this round

Additional layoffs in prior/following 30 days

Additional layoffs within 90 days Use this if separate layoff waves may need aggregation.

Notice days actually given Federal WARN generally requires 60 calendar days of notice.

Annual salary ($) Used only for a rough back-pay estimate. Benefits are not included in the dollar amount below.

Your result

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Your result will appear here once you run the calculator.

Important: This calculator applies a simplified federal WARN screening test. Real cases can turn on single-site rules, state mini-WARN laws, part-time treatment, business-circumstance exceptions, and whether 90-day layoffs were truly unrelated.