“I am glad and so very pleased...he made happen what no other attorney could do. So far he has proven his weight in gold.”
Jamal Sharples
Antelope Valley
What Is the Difference Between TTD and TPD in California Workers' Comp?
Certified Specialist (CA Bar)No Fee Unless We Win (Costs May Apply)Millions RecoveredSe Habla Español
- Years of Practice
- 14+
- Cases Handled
- 500+ over 14+ years of practice
- Recovered
- $7M+ over 14+ years of practice
- Bilingual + Farsi
- English + Español + Farsi
By Eman Yazdchi, Esq. · Certified Specialist in Workers' Compensation Law, State Bar of California Board of Legal Specialization · Cal Bar #285231
TTD pays two-thirds of pre-injury wages when the worker cannot work at all; TPD pays two-thirds of the difference between pre-injury wages and actual modified-duty earnings when the worker returns to reduced work. Both are capped at 104 weeks within five years of injury. Audit errors are common. Certified Specialist Eman Yazdchi (California Board of Legal Specialization, State Bar of California) audits every TD calculation.
Both are subject to the 104-week cap under California Labor Code §4656, the cap on temporary disability running from the date of first payment. The right calculation of the underlying average weekly wage, using the most favorable lawful method under §4453, can be worth hundreds of dollars per week difference, accumulated over months. Claims administrators routinely use the wrong method and the resulting underpayment typically goes undetected without an audit.
Below: the TTD vs. TPD rate formulas, the most common underpayment patterns, and how to calculate what the correct rate should have been.
How is TTD calculated?
TTD pays two-thirds of the average weekly earnings before injury when the worker is completely off work; the maximum and minimum rates are set annually by the DWC.
Under Labor Code §4653, TTD pays two-thirds of average weekly earnings, subject to statutory minimums and maximums adjusted annually by the DIR. Average weekly earnings under §4453 use the highest of several formulas, actual earnings, similar-employee earnings, or what would fairly represent earning capacity. The WCIRB California 2024 State of the System Report notes that the 2024 maximum TTD rate exceeded $1,600 per week.
How is TPD calculated?
Labor Code §4654 sets TPD at two-thirds of the weekly wage loss. If you earned $1,500/week before injury and earn $900/week on modified duty, the wage loss is $600, and TPD pays $400 per week. The administrator must add TPD to the modified-duty paycheck, the worker should receive total compensation roughly equivalent to two-thirds of pre-injury wages plus the actual modified-duty earnings.
What is the 104-week cap?
Labor Code §4656(c)(1) caps temporary disability at 104 aggregate weeks within five years of the date of injury for most injuries. Certain catastrophic injuries (severe burns, high-velocity eye injuries, chronic lung disease, HIV, amputations, severe head injuries) qualify for 240 weeks under §4656(c)(3). The 104-week cap counts both TTD and TPD weeks.
What if my modified-duty hours fluctuate?
TPD pays two-thirds of the difference between pre-injury wages and actual modified-duty earnings when hours or pay vary week to week, auditing the calculation is essential.
Each pay period the administrator must recalculate TPD based on actual hours worked that period. Many administrators use a static estimate, which underpays workers during low-hour weeks. Request a written calculation sheet for each pay period. Disputes are filed via DWC-WCAB Form 1 and resolved at expedited hearings.
Related on yazdchilaw.com: California workers' compensation lawyer pillar · what to do if you can't go back to work after a workers' comp injury · what happens if the workers' comp judge mishears your testimony · can you keep workers' comp if you move out of state · California Labor Code §3600 explained.
Injured at work? Call (661) 273-1780
Tap to call →How Yazdchi Law Audits Temporary Disability
Review every TD check for accuracy, the rate, the base wage, and the period covered, because calculation errors in favor of the insurer are common and correctable.
Yazdchi Law, led by Certified Specialist Eman Yazdchi, runs full TD audits on every case at intake (California Board of Legal Specialization, State Bar of California). We pull pre-injury W-2s and pay stubs, calculate the §4453 average weekly earnings using the most favorable lawful method, and cross-check every weekly TTD or TPD payment against the statutory rate. Underpayments routinely run $50-$200 per week and accumulate to thousands over a 104-week period.
From Bakersfield to Long Beach, we file 10% late-payment penalty petitions under §4650(d) when checks are even one day late. Call (661) 273-1780 for a no-cost rate audit.
Frequently Asked Questions
Do tips and overtime count in my average weekly wage?
Yes. Labor Code §4453(c) includes all forms of remuneration: regular wages, overtime, bonuses, tips reported to the employer, commissions, and the reasonable value of board, lodging, and similar advantages. Tipped workers should produce credit-card receipts, point-of-sale tip-out reports, and IRS Form 4137 if cash tips were underreported. Excluded items are limited to expense reimbursements and certain fringe benefits.
Does TTD ever start at 100% of wages?
Under Labor Code §4850, certain public safety employees, peace officers, firefighters, lifeguards employed by specific agencies, receive one year of full salary in lieu of TTD. This is a salary-continuation benefit, not a workers' comp indemnity rate. After the §4850 year ends, regular TTD at two-thirds resumes. Most private-sector workers receive the two-thirds rate from day one.
Can I collect TPD and unemployment at the same time?
Generally no. EDD unemployment requires the claimant to be able and available for full-time work, which conflicts with the medical work restrictions that triggered TPD. State Disability Insurance is also offset against workers' comp TD. Inform both the workers' comp administrator and EDD of any concurrent claims to avoid overpayment recoupment, which can include penalties under Unemployment Insurance Code §1375.
What if my employer offers light duty I can't physically do?
Request a doctor's review. The primary treating physician must sign off on whether the modified duties fit your restrictions. If the doctor says no, TTD continues. If the doctor approves the duties but you decline, the employer can terminate TPD eligibility. Get the written restriction match (or mismatch) in the medical record before refusing any offer.
How quickly should TD payments start?
Labor Code §4650(a) requires the first TD payment within 14 days after the employer knows or should know of disability. Each subsequent payment is due every 14 days. Late payments under §4650(d) trigger an automatic 10% self-imposed increase, payable without a petition. Many administrators forget to add the 10%, request it in writing if any payment is late.
Does temporary disability count against my permanent disability award?
No. TTD and TPD are separate from permanent disability under Labor Code §4658. PD compensates for permanent loss of earning capacity after MMI; TD compensates for wage loss before MMI. They are stacked, not offset. Some administrators try to characterize PD advances as TD overpayments, this is improper and grounds for a penalty petition.
Last reviewed by Eman Yazdchi, Esq., June 2026.
Get your case evaluated in 60 seconds.
Get Your Free Case EvaluationTalk to a Certified Specialist
Three fields. No obligation.
What Our Clients Say
Read more testimonials →“I am glad and so very pleased...he made happen what no other attorney could do. So far he has proven his weight in gold.”