The First 30 Days After a Work Injury in California

On this page

Two dates start every clock Day 0: what counts as telling your employer Day 1: the claim form The $10,000 you can use before anyone decides Who picks your doctor in the first 30 days Day 14: a check, or a letter explaining why not Day 30: the reporting deadline, and why it is rarely the end After day 30: what the first month sets up A 30-day file you can keep Key takeaways Frequently asked questions Tell us what happened

In thirty seconds

Two dates start everything: the day your employer learns you were hurt, and the day you file the DWC-1 claim form. Write both down. They are often days apart, and different clocks hang from each.
From the filing date, your employer has one working day to authorize medical treatment, up to $10,000, while the claim is investigated. From the day it learns of the injury and your time off work, the first check is due within 14 days.
Thirty days is the deadline to tell your employer, but a supervisor who saw it or heard about it already counts. Missing day 30 is rarely the end of a claim. Deciding on your own that it is too late often is.

Most people hurt at work in Southern California spend the first month doing what they were raised to do: keep working if they can, stay quiet if they cannot, and wait for someone to tell them what happens next. The law runs on a schedule the whole time. Some of its clocks protect you automatically. Others only protect you if you know they started.

This article walks through the first 30 days the way the law counts them, for the person hurt last week on a warehouse floor in Ontario, a job site in Riverside, a kitchen in Koreatown or a delivery route through Long Beach. It covers the two dates that matter most, what each one sets running, who chooses your doctor, when the first check is due, and what to keep in a folder.

Two dates start every clock

Almost every deadline in the first month hangs from one of two days.

A California workers’ compensation claim does not start on one day. It starts on two, and almost every deadline in the first month hangs from one or the other.

The first date is the day your employer learns you were hurt. Not the day you filled out a form. The day a supervisor, foreman, manager or anyone else in authority knew, whether you told them, they saw it, or they heard it from a coworker. That knowledge is the law’s version of notice, and it starts the employer’s side of the schedule: the claim form it owes you, the letter it owes you if it cannot decide, and your first check if you are off work.

The second date is the day you file the DWC-1 claim form. That is the form your employer is supposed to hand you, and the one you complete, sign, date and return. Filing it starts the two clocks that protect you most: medical treatment while the claim is investigated, and the 90-day period after which an injury that has not been rejected is presumed to be covered.

Figure 1. Two dates, two sets of clocks. The day your employer learns of the injury starts the claim form, the decision letter and the first check. The day you file the DWC-1 starts treatment of up to $10,000 and the 90-day presumption.

Why does this matter so much? Because the two dates can be far apart, and nothing forces them together except you. An employer that knows on Monday and never produces the form has started its own clocks while yours wait. A worker who files the form a week later has a filing date a week later, and every protection measured from filing starts a week later too. The fix is simple and it is the single most useful thing in this article: file the form as soon as you can, and keep a copy that shows the date you filed it.

WRITE BOTH DATES DOWN TODAY

On a single page: the date you were hurt, the date and name of the first person in authority who knew, and the date you delivered the claim form, with how you delivered it. If you mailed it, keep the certified-mail receipt. If you handed it over, write down who took it. This page will be the first thing any lawyer, claims administrator or judge asks you about, and it is the one thing nobody else can rebuild for you later.

The claim, start to finish The first 72 hours, as a checklist

Day 0: what counts as telling your employer

Thirty days is the number people know. The rule underneath it is broader.

The law gives you 30 days to notify your employer of a work injury. That is the number most people have heard, and it is the number that frightens people out of claims they still have, because the rule underneath it is much broader than it sounds.

Knowledge of the injury that reaches your employer from any source counts as notice. That includes knowledge held by a managing agent, a superintendent, a foreman or any other person in authority. So a supervisor who watched you go down counts. A lead you told at the end of the shift counts. A first-aid log entry counts. A coworker who reported it to the manager counts. You do not have to have used the right words or filled out the right form for the law to treat your employer as knowing.

Report it in writing anyway. A text message or an email to your supervisor, dated, saying what happened and what hurts, is the best evidence most workers ever create. Keep a copy somewhere that is not the work phone.

Three things matter more than the wording of the report:

Name every body part that hurts. Not just the worst one. A back injury that also jarred your neck, a fall that also hit your wrist, a lifting strain that also left your shoulder aching: say all of it, at the start, to your supervisor and to the first doctor. A body part that was never mentioned early becomes an argument later about whether it is really part of the claim.
Say it happened at work, to the doctor too. Whoever treats you first, make sure the note says the injury happened at work, on what date, and doing what. A record written that day that says “injured lifting at work” is worth more than any explanation you give months from now. If the note leaves it out, ask for it to be corrected.
Your own mistake does not end the claim. California workers’ compensation is a no-fault system. The law asks whether the injury was caused by the job, and it covers that injury with or without anyone’s negligence, including yours. People talk themselves out of valid claims every week because they think a slip, a shortcut or a moment of inattention means it was their fault. That is not the question the system asks.

Day 1: the claim form

The form your employer owes you, and what to do if it never comes.

Your employer must give you a DWC-1 claim form within one working day of learning about the injury. Many do. Many do not.

You do not have to wait. The DWC-1 is published by the state’s Division of Workers’ Compensation and you can get it yourself. Complete the employee section, sign it, date it and deliver it to your employer, by certified mail or by hand, and keep a copy that shows the date. From that moment you have a filing date, and the clocks that depend on it are running whether or not anyone at work acknowledges them.

If the form never comes. Do not let an employer’s silence become your delay. A worker who waits three weeks for a form that never arrives has given up three weeks of treatment and three weeks of the 90-day period. A worker who files it on day two has given up nothing.

What the form is not. The DWC-1 is not a lawsuit, and filing it is not suing your employer. It is the notice the system is built around. It is also not a promise that you are badly hurt or that you will be off work. It says that you were injured at work and that you are claiming benefits for that injury, and it starts the employer’s obligation to decide.

The $10,000 you can use before anyone decides

Treatment does not have to wait for the claim to be decided.

Within one working day after you file the claim form, your employer must authorize medical treatment for the injury you claimed, and it must keep that treatment authorized until the claim is accepted or rejected, up to $10,000.

Read that carefully, because it is the most under-used protection in the first month. You do not need the claim accepted. You do not need a lawyer. You need a filed claim form, and from the next working day the treatment obligation exists while the claims administrator investigates.

What it is, and what it is not. It runs during the investigation, including while the claim is formally delayed. A rejection of the claim ends it. It is not a fund that survives a denial, and it is not a cap on what an accepted claim pays for treatment. It is the bridge between the day you file and the day someone decides.

ASK FOR IT IN WRITING

If treatment is being put off while the claim is investigated, write to the claims administrator and ask for authorization of the treatment your doctor has recommended, under the $10,000 pre-acceptance obligation. Keep a copy of the request. A written request turns a vague delay into a dated refusal, and a dated refusal is something a judge can act on.

Do not put it on your own health insurance by default. Treatment for a work injury is your employer’s obligation, not your health plan’s. Tell every provider, from the first visit, that the injury happened at work.

Denied and delayed claims Every deadline in one place

Who picks your doctor in the first 30 days

It depends on a form you signed, or did not sign, before you were hurt.

This is the question injured workers ask most in the first week, and the answer depends on something that happened before you were hurt.

If you predesignated a personal physician before the injury, you go to that doctor. Predesignation is a form you can only file ahead of time. The physician must have treated you before, must keep your medical records, and must have agreed in advance to be predesignated. You must also have health insurance that covers injuries outside work. Employers with a medical provider network are required to give you the predesignation form and notice at hire or before the end of your first pay period. Most workers never see it.

If you did not predesignate, your employer controls your medical care for the first 30 days after you report the injury. After that you may change doctors. If your employer has a medical provider network, usually called an MPN, the change is to a doctor inside it.

Figure 2. Who chooses the first doctor. A valid predesignation sends you to your own physician from day one. Without one, the employer directs care for the first 30 days, and after your first visit you may move to any other doctor in the network without asking.

THE RIGHT ALMOST NOBODY USES

An MPN is a list, not a person. After your first visit you may switch to any other physician in the network, and you do not need anyone’s permission to do it. If the first doctor is rushed, dismissive or simply wrong for your injury, you are not stuck with them for the life of the claim.

If you disagree with the MPN doctor. There is an escalating process inside the network: a second opinion, then a third, and then an MPN independent medical review, with findings due within 30 days of the examination.

When you can treat outside the network. Emergency care, always. Treatment outside the MPN can also be available where the employer did not properly notify you of the network, where the network cannot actually provide an appropriate doctor or appointment, where you validly predesignated, and after a successful MPN independent medical review.

An interpreter costs you nothing. You are entitled to an interpreter at no cost at treatment, at medical-legal examinations, at depositions and at hearings. Do not accept a family member as the interpreter at a medical-legal examination. For many families in Los Angeles and Orange County, that is the difference between understanding a doctor and nodding along.

Day 14: a check, or a letter explaining why not

The first money, and the first decision, come due together.

Two things are due around the end of the second week, and both are measured from the day your employer learned of the injury.

A decision, or a delay letter. If the claims administrator cannot decide whether to accept the claim within 14 days after your employer learned of the injury, it must send you a written delay notice within that time, explaining what it is investigating and when it expects to decide. A denial notice is due within 14 days of the decision to deny, which can fall well after day 14.

Your first temporary disability payment, if you are off work. Temporary disability is the money that replaces wages while you cannot work. The first payment is due within 14 days of your employer’s knowledge of the injury and the disability. No one has to apply for it to become due.

Figure 3. The first check, illustrated. A worker with average weekly earnings of $900 receives two-thirds, $600 a week, inside the 2026 floor of $264.61 and ceiling of $1,764.11. The figures are illustrative; your rate depends on your own earnings and your date of injury.

How much the check should be. Temporary disability is two-thirds of your average weekly earnings, between $264.61 and $1,764.11 a week for a 2026 injury. Overtime, a second job, bonuses, tips and wages paid in kind all belong in the earnings figure, and they are the most common things left out. If your first check looks low, the first question is what earnings it was calculated from.

The first three days. No temporary disability is payable for the first three days after you leave work, unless the disability continues for more than 14 days or you are hospitalized as an inpatient. In either case temporary disability is payable from the first day, retroactively.

A late check grows by itself. When an indemnity payment is late, the law increases it by 10% automatically, without anyone having to apply. In practice the increase is very often not added. You can only notice that if you know when each check was due and when it actually arrived.

START THE PAYMENT LEDGER NOW

One page. For every payment: the date it was issued, the date you received it, the period it covers and the amount. It takes ten minutes to start and a few seconds per check to keep. Most disputes about late or short payments are won or lost on whether that page exists, and only you can build it.

Day 30: the reporting deadline, and why it is rarely the end

The date people fear most is the one that ends the fewest claims.

Day 30 is the date people fear, and it is worth being precise about what it is. It is the deadline for notifying your employer of the injury. It is not the deadline for filing a case, and it is not the deadline for getting treatment.

Missing day 30 is rarely the end of a claim. Deciding on your own that it is too late often is.

If any person in authority at work already knew, through you, a witness, a log or anything else, the notice requirement has very likely been met, whatever the date on your paperwork. Missing the 30-day window is not automatically fatal. Far more valid claims are lost because a worker decided on their own that a deadline had passed than because anyone actually missed one.

When the injury built up over time. For a cumulative trauma, like a back worn down by years of lifting, wrists damaged by years of repetitive work, or hearing lost to years of noise, the date of injury is not the day the work started hurting you. It is the date you first suffered disability and knew, or should have known, that it was caused by work. That single rule saves more otherwise-late claims than anything else in the code, and it is one more reason not to decide on your own that you are too late.

What changes at day 30 for your doctor. If you did not predesignate a physician, day 30 after you reported the injury is also when the employer’s control of your first month of care ends. From then, you may change treating doctors, inside the MPN if your employer has one.

Cumulative trauma I didn’t report it right away

After day 30: what the first month sets up

The clocks the first month started keep running after it ends.

The first 30 days are short. What they set in motion is not.

Figure 4. What the first month sets up. Report and claim form in the first days, the check or delay letter by day 14, control of the first doctor ending at day 30, the presumption at day 90 after filing, and one year to file with the Appeals Board.

The 90-day presumption. If the claims administrator does not reject liability within 90 days after the date the claim form was filed, the injury is presumed compensable. That presumption can only be rebutted with evidence discovered after the 90 days. For certain public-safety presumption claims the period is 75 days. This is why the filing date on your copy of the DWC-1 matters so much: it is the day the 90 days started.
A denial is the start of the litigated part. A denial letter is not the end of a claim. It is the start of the part where a workers’ compensation judge gets involved, and the deadlines from that point on are their own.
One year to open a case. The Application for Adjudication opens a case at the Workers’ Compensation Appeals Board, with an ADJ number and a district office. In the four counties this firm serves, those offices are in Anaheim, Long Beach, Los Angeles, Marina del Rey, Pomona, Riverside, San Bernardino, Santa Ana and Van Nuys. The general deadline to file is one year, and it is not something to leave to the last month.
If you are punished for filing. The law prohibits an employer from firing you, threatening to fire you, or discriminating against you in any way because you filed a claim or said you intended to. That claim has its own deadline, one year from the discriminatory act or the termination, separate from the injury claim. Firing an injured worker can also break other California employment laws, which carry deadlines of their own. If anything changes at work after you report an injury, write down what happened and when, the day it happens.
Immigration status does not affect eligibility. Not yours, and not a dependent’s. The fear of asking is one of the largest reasons valid claims are never filed, and it should not decide yours.

A 30-day file you can keep

One folder, from the first week.

Everything above comes down to a short list of dates and documents. Keep them in one folder, paper or phone, from the first week.

The date you were hurt, and how — What you were doing, where, and every body part that hurt at the start.
The first person in authority who knew — Their name, their role, and the date. If you texted or emailed, keep the message.
Your copy of the DWC-1, with the date you filed it — And the certified-mail receipt, or the name of the person who took it.
Every medical note from the first visits — Each one should say the injury happened at work. Ask for a correction if one does not.
Your written request for treatment, if any treatment is delayed — Dated, with a copy, citing the $10,000 pre-acceptance obligation.
The doctor and the network — The name of your treating doctor, whether there is an MPN, and any predesignation form you signed before the injury.
Every letter from the claims administrator — Acceptance, delay, denial or benefit notice, each kept with its envelope.
The payment ledger — Date issued, date received, period covered, amount, for every check.
Photographs and names — The scene, the equipment, the injury, and the names and phone numbers of anyone who saw it.

Key takeaways

Two dates, not one. The day your employer learns of the injury and the day you file the claim form start different clocks. Write both down.
File the claim form yourself if it does not come. The DWC-1 is the state’s form, not the employer’s, and the filing date starts the protections that matter most.
Treatment can start before anyone decides. From the working day after filing, up to $10,000 in treatment must be authorized while the claim is investigated.
Day 14 means a check or a letter. The first temporary disability payment, or a written delay notice, is due by then; a late check grows by 10% automatically.
Day 30 is rarely the end. A supervisor’s knowledge counts as notice, and the most expensive mistake in the first month is deciding on your own that it is too late.

Frequently asked questions

How long do I have to report a work injury in California?

Thirty days to notify your employer. But knowledge of the injury held by a supervisor, foreman or anyone else in authority, from any source, counts as notice, so many workers who think they missed the deadline did not. Report in writing anyway, and keep a copy.

My employer will not give me a claim form. What do I do?

Get the DWC-1 from the state’s Division of Workers’ Compensation and file it yourself. Complete the employee section, sign and date it, deliver it by certified mail or by hand, and keep a copy that shows the date. Filing is what starts the $10,000 treatment obligation and the 90-day presumption.

When should my first workers’ comp check arrive?

Within 14 days of your employer learning about the injury and that you are off work. If a payment is late, the law adds 10% to it automatically, without anyone applying, though it is often not added unless someone notices.

Do I get paid for the first three days I missed?

Not at first. The first three days are payable only if your disability lasts more than 14 days or you are hospitalized as an inpatient. If either happens, temporary disability is paid from the first day.

Can I see my own doctor after a work injury?

If you predesignated a personal physician before the injury, yes. Otherwise your employer controls your care for the first 30 days after you report it, and if there is a medical provider network, you may switch to any other doctor in it after the first visit, without permission.

The insurer sent a delay letter. Is my claim denied?

No. A delay letter means the claim has not been decided. The $10,000 treatment obligation is still live, and the 90-day period after you filed the claim form keeps running. Delay letters do not stop it.

Sources

Labor Code § 3600(a)(3)§ 4600, including (d)§ 4616.3§ 4616.4§ 4650(a), (d)§ 4652§ 4453§ 5400§ 5401§ 5402(a), (b), (c)§ 5405§ 5412§ 132a8 CCR § 9812DIR Newsline 2025-116 (2026 temporary disability rates)DWC claim form DWC-1.

General information about California law, not legal advice about your case.

Reviewed by Jamey Teitell, Partner & Trial Attorney · Last reviewed October 12, 2026

How we research and review this site · Report an error

Law Offices of Solov & Teitell, APC · (213) 380-9310

Printed from https://www.solovteitell.com/articles/first-30-days-after-a-work-injury/ · Last reviewed October 12, 2026