Late Payment Penalties
The automatic 10% self-imposed increase on late indemnity (LC 4650(d)) and the penalty for unreasonable delay or refusal — 25% of the amount delayed or $10,000, whichever is less, with credit for any 4650(d) increase already paid (LC 5814).
Whether a delay is "unreasonable" is a factual finding for the WCAB; this calculator only applies the statutory arithmetic once that finding is assumed. Multiple LC 5814 penalties may apply to separate delays; compute each separately.