Late Payments and Penalties

There are two separate penalties in California for late or wrongly withheld benefits. One is automatic and self-executing. The other has to be litigated. Most workers are never told about either.

Penalty one — the automatic 10%

Labor Code § 4650 sets the payment schedule:

And § 4650(d) is the part that matters:

"If any indemnity payment is not made timely as required by this section, the amount of the late payment shall be increased 10 percent and shall be paid, without application, to the employee."

"Without application" means you do not have to ask for it. No petition, no hearing, no proof of unreasonableness. The payment is late, so it is 10% more, and the claims administrator is required to add it on its own.

It is very frequently not added.

Check your payment history against the dates. Every payment more than fourteen days apart should carry 10%. This is arithmetic, and it is the easiest money in the system to identify.

There are narrow exceptions — for the first payment on a claim while liability is being determined, and for certain employer determinations. They do not cover most late payments.

Penalty two — the § 5814 penalty for unreasonable delay

This one is bigger and it is contested.

§ 5814(a): where payment of compensation has been unreasonably delayed or refused, "the amount of the payment unreasonably delayed or refused shall be increased up to 25 percent or up to ten thousand dollars ($10,000), whichever is less."

"Compensation" is broad — it covers indemnity, medical treatment, medical-legal costs, and mileage reimbursement. A wrongly denied medical treatment can support a § 5814 penalty.

The test is reasonableness, not good faith alone. A delay caused by a claims administrator's own disorganization, an unread report, an unstaffed file, or an unreturned call is not made reasonable by the absence of bad intent.

The 90-day self-correction window

§ 5814(b) gives the employer an escape hatch: on discovering a delay, the employer may within 90 days pay a self-imposed penalty of 10% of the delayed amount — and that resolves it, without a hearing.

Which means there is a real strategic reason to raise a delay promptly: the carrier is far more likely to self-correct at 10% than to litigate a 25% claim.

And the deadline

§ 5814(g): "no action may be brought to recover penalties that may be awarded under this section more than two years from the date the payment of compensation was due."

Two years from when the payment was due — not from when you noticed.

What the two penalties do together

They are not alternatives. A payment can be late (triggering the automatic 10% under § 4650(d)) and unreasonably delayed (supporting a penalty of up to 25% under § 5814).

And there is a further provision worth knowing: where payment is unreasonably delayed or refused after an award has issued, by an employer that has secured the payment of compensation under § 3700 — a self-insured or insured employer, not an illegally uninsured one — § 5814.5 requires an award of reasonable attorneys' fees incurred in enforcing payment, paid by the employer rather than out of the worker's recovery. Both limbs matter: the delay must come after an award, and the statute reaches employers who did secure payment.

What to do about a delay

Build the payment ledger. Every check: date issued, date received, period covered, amount. Most delay claims are won or lost on whether this document exists, and nobody but you can build it.

Put the request in writing. Email or letter, dated, with what is owed and why. The written demand is what makes a later delay unreasonable — it removes "we didn't know" from the defense.

Keep the envelopes or the electronic deposit records. Date of issue and date of receipt are different, and both matter.

Raise it early. The 90-day self-correction window means a promptly raised delay is often paid at 10% without a fight.

And do not let a treatment denial sit. A wrongly denied treatment is delayed compensation, and the UR/IMR track and the penalty track are separate. How to check a UR denial.

Frequently asked questions