California WARN Act: What 60 Days of Back Pay Owes You

The decision: Diana’s 90-person office closure in Sacramento

Diana is a 44-year-old operations manager, single filer, earning $90,000 a year at a regional logistics company in Sacramento, California. On a Tuesday, the company announced it was closing the Sacramento office and laying off 60 of the site’s 90 employees effective the following Tuesday — 7 days’ notice. The company has 90 employees total across all California sites.

Diana’s coworkers told her the layoff was “too small for WARN” because the company has fewer than 100 employees. That is half right and half an $18,000 mistake. Federal WARN does not apply — it only covers employers with 100 or more employees. But California’s own statute, Cal-WARN, covers any establishment with 75 or more employees. Diana’s employer is squarely inside Cal-WARN, the 60-person layoff clears the 50-employee mass-layoff trigger, and she got 53 days’ less notice than the law requires.

The math: Cal-WARN owes back pay for each missing day of notice, up to 60 days. With 7 days given, the shortfall is 53 days. At $90,000/year, Diana’s daily regular rate is about $346 ($90,000 ÷ 260 workdays). 53 × $346 = roughly $18,300 in back pay, plus the value of the health benefits she would have carried during those 53 days. The “too small for WARN” assumption would have cost her every dollar of it.

Cal-WARN reaches employers federal WARN never touches

California’s mini-WARN statute lives at Cal. Lab. Code §§1400–1408. It was written to be more protective than the federal Worker Adjustment and Retraining Notification Act (29 U.S.C. §§2101–2109). Three structural differences decide who is covered.

1. Employer-size floor of 75, not 100. Federal WARN applies only to employers with 100+ full-time employees. Cal-WARN’s “covered establishment” is any industrial or commercial facility that employs, or employed in the prior 12 months, 75 or more persons (counting both full- and part-time). That 25-employee gap is where many mid-size California employers sit — covered by the state law, invisible to the federal one.
2. No 33% workforce test. Federal WARN’s mass-layoff definition requires either 500+ employees or 50–499 employees if they are 33%+ of the active workforce at the site. Cal-WARN defines a mass layoff as simply 50 or more employees laid off in any 30-day period at a covered establishment — no percentage requirement. A 50-person cut at a 500-person plant misses federal WARN but triggers Cal-WARN.
3. Relocations count. Cal-WARN covers a relocation of operations to a site 100 or more miles away. Federal WARN does not cover relocations at all. A move from San Jose to Austin or San Francisco to Phoenix can trigger Cal-WARN even when no one is technically “laid off.”

Side-by-side: the thresholds that decide your claim

For Diana’s 90-employee company, only the right column matters. Federal WARN never engages. Cal-WARN engages on all three counts that could possibly apply: the employer clears 75, the layoff clears 50, and even a relocation would have counted.

How the 60-day back pay is actually calculated

The Cal-WARN remedy at Cal. Lab. Code §1402 mirrors the federal formula at 29 U.S.C. §2104: back pay for each day of the violation, up to a maximum of 60 days (or one-half the days the employee actually worked, if that is smaller), at the employee’s average regular rate of compensation, plus the cost of benefits the employee would have received.

Two mechanics matter. First, notice already given is credited — the employer owes the shortfall, not a flat 60 days. Diana got 7 days, so the claim is 53 days, not 60. Second, “back pay” uses your regular rate, which can include commissions and shift differentials, not just base salary. Here is Diana’s claim worked all the way through:

The federal-WARN comparison is the headline: under federal law, Diana’s recovery is $0, because her employer has fewer than 100 employees. The entire $19,600 exists only because California passed a tougher statute. That is the gap the “too small for WARN” rumor would have cost her.

What most people get wrong about Cal-WARN

The single biggest myth is the one Diana’s coworkers repeated: “our company is too small for WARN.” That sentence is true for federal WARN and false for Cal-WARN, and the two get blurred together. Federal WARN’s 100-employee floor is the number people remember; California’s 75-employee floor is the number that actually controls a California layoff.

Three more misconceptions cost California workers real money:

• “Severance covers it, so there’s nothing to claim.” A severance offer and a Cal-WARN back-pay obligation are different things. Many employers offer severance conditioned on signing a release that waives the WARN claim. If the severance is smaller than the WARN back pay, signing the release can mean trading a $19,600 statutory right for a smaller check. Read the release before you sign.
• “I have to act immediately.” Cal-WARN claims carry a 3-year statute of limitations under Cal. Code Civ. Proc. §338(a) (a liability created by statute). You are not forced to decide in the days after a layoff. But do not let the employer’s short release-signing deadline rush you into waiving a claim you have years to bring.
• “WARN back pay is tax-free because it’s a legal recovery.” No. WARN back pay is ordinary wage income. It is subject to federal income tax, FICA (Social Security to the $181,800 wage base, Medicare with no cap), and California income tax. Lost-wage recoveries are not the same as personal-physical-injury damages, which are excluded under IRC §104(a)(2). Plan for the withholding.

How Cal-WARN back pay is taxed — and why withholding misleads

When the back pay lands, the employer treats it as supplemental wages. Federal rules (IRS Pub. 15) apply a flat 22% federal withholding to supplemental wages up to $1M, California adds 6.6% state withholding, and FICA takes 7.65% (until you cross the $181,800 Social Security wage base, after which only the 1.45% Medicare portion continues).

Withholding is not your final tax. Diana’s $90,000 salary already puts her in the 22% federal bracket (single: $48,476–$103,350 for 2026), and a $19,600 lump on top pushes part of her income into the 24% bracket (single: $103,351–$197,300). The 22% flat withholding may under-withhold slightly against her 24% marginal rate on the top dollars. Here is the after-tax reality of the back-pay award:

California’s top rate is 13.3%, but Diana’s income lands her in the roughly 9.3% marginal band — not the headline top rate. Roughly 41% of the award goes to taxes, leaving her about $11,600 in hand. That is still $11,600 more than the $0 federal WARN would have produced.

How the back pay collides with EDD unemployment

California pays unemployment through the EDD, and the back pay interacts with it. EDD treats WARN back pay and lump-sum severance as wages in lieu of notice under UI Code §1265.5, allocating the money across the weeks it represents. For any week where the allocation meets or exceeds your weekly benefit amount, UI is not payable.

The 2026 California UI maximum weekly benefit is $450, for up to 26 weeks — a ceiling of $11,700 total. Diana’s daily wage of $346 (about $1,730/week) far exceeds $450, so during the ~7.5 weeks the 53-day back-pay award covers, EDD pays her nothing. After that allocation window closes, she collects UI normally. The back-pay dollars are not forfeited — they are sequenced ahead of her UI start date. For a high earner, this barely matters: her $11,574 of after-tax back pay dwarfs the $450/week UI ceiling, and she can file for UI as soon as the allocation period ends.

The companion mechanic to watch: report the back pay accurately on your EDD certifications. Under-reporting to grab UI during an allocated week creates an overpayment EDD will claw back with penalties. The clean play is to let the allocation run, then start UI on the back end.

The decision lever: count heads, then count days

If you are laid off in California, your Cal-WARN entitlement turns on two numbers you can check yourself before you sign anything.

1. Did the establishment employ 75 or more people in the last 12 months? If yes, Cal-WARN is in play regardless of whether federal WARN’s 100-employee floor is met. Count current and recently-separated headcount — the 12-month look-back matters.
2. Were 50 or more workers laid off in a 30-day window? If yes, you have a covered mass layoff — no 33%-of-workforce test to clear. Group layoffs that are split across a few weeks to dodge the threshold still aggregate under the 30-day (and in some cases 90-day) look-back.

When both are yes, the employer owed you 60 days’ notice. Subtract the notice you actually got, multiply the shortfall by your daily regular rate, add benefits, and that is your claim — up to a 60-day cap. Then look at any severance release on the table: if it waives your WARN rights and pays less than the back-pay figure, the release is the thing to negotiate, not accept. The number that protects you is not 100. In California, it is 75 — and the 53 days between 7 and 60.