The Ohio workers compensation act — formally the Ohio Ohio Workers’ Compensation law (Ohio Revised Code Chapter 4123, “Workers’ Compensation”). The original 1911 statute was called the “Ohio Workmen’s Compensation Act.”, found at Ohio Revised Code Chapter 4123 (Title 41, Labor and Industry). Chapter 4121 covers the Industrial Commission and the Bureau of Workers’ Compensation (BWC). R.C.
2745.01 covers employer intentional torts. — is the statute behind every workers’ comp claim, benefit and employer mandate in the state. This plain-English guide to the Ohio workers compensation act gives the section numbers next to the rules people actually need: who must be covered, the deadlines, the waiting period, the pay rate, the exclusive-remedy bargain, the ban on retaliation and the penalties.
Verified against the official code as of October 2026.
Ohio at a Glance
| Official name | Ohio Workers’ Compensation law (Ohio Revised Code Chapter 4123, “Workers’ Compensation”). The original 1911 statute was called the “Ohio Workmen’s Compensation Act.” |
| Where it lives | Ohio Revised Code Chapter 4123 (Title 41, Labor and Industry). Chapter 4121 covers the Industrial Commission and the Bureau of Workers’ Compensation (BWC). R.C. 2745.01 covers employer intentional torts. |
| First enacted | 1911 (signed June 15, 1911, when participation was elective; coverage became mandatory for employers in 1913) |
| Reporting deadline | The Ohio code sets no fixed number of days for a worker to tell the employer. In practice the one-year notice bar in R.C. 4123.84 controls, so prompt notice is strongly advised. Confirm with BWC and a licensed attorney. |
| Filing deadline | 1 year from the date of injury or death, under R.C. 4123.84 (for injuries on or after September 29, 2017). Written notice naming the specific body parts injured must reach BWC or the Industrial Commission in that year. The bar does not apply if, within that year, the employer paid wages in lieu of compensation or furnished treatment. The deadline may be extended if the employer failed to file the report required by R.C. 4123.28. |
| Exclusive remedy | R.C. 4123.74 makes complying employers immune from employee lawsuits over work injuries and occupational diseases. The main exception is an employer intentional tort under R.C. 2745.01. That requires deliberate intent to injure. It is presumed when an employer deliberately removes a safety guard or deliberately misrepresents a toxic or hazardous substance. |
| Recent amendments | Senate Bill 196 (135th General Assembly), signed December 19, 2024 and effective March 20, 2025. It amended several sections, including 4123.84, 4123.511, 4123.54, 4123.56 and 4121.45, with changes covering professional athletes and coaches and interstate claims. House Bill 81 (136th General Assembly), the BWC budget for FY2026-27, was effective June 27, 2025, with some provisions effective September 26, 2025. It lets BWC buy, repair and replace work-related prosthetic devices after a claim has expired. It renamed the ombudsperson system the “Workers’ Compensation Customer Advocacy Office” and changed rules for incarcerated workers in the Prison Industries Enhancement Certification Program. |
In This Ohio Guide:
What the Ohio Workers Compensation Act Is
An workers’ compensation act is an no-fault deal written into state law: the employer pays for work injuries without the worker proving fault, and the worker gives up most lawsuits against the employer in return. The Ohio workers compensation act dates to 1911 (signed June 15, 1911, when participation was elective; coverage became mandatory for employers in 1913).
It lives at Ohio Revised Code Chapter 4123 (Title 41, Labor and Industry). Chapter 4121 covers the Industrial Commission and the Bureau of Workers’ Compensation (BWC). R.C. 2745.01 covers employer intentional torts., and the official text is linked in the sources. Ohio is a monopolistic state-fund state.
Employers must be covered through the state insurance fund run by BWC or be approved self-insurers; private workers’ comp insurance is not offered (R.C. 4123.35). BWC must notify the claimant and the employer within 7 days after it receives a claim (R.C. 4123.511). Many claimants also use the Customer Advocacy Office, formerly the ombudsperson (R.C. 4121.45), for help with BWC and the Industrial Commission.
Confirm specifics with BWC and a licensed attorney.
Who the Ohio Workers Compensation Act Covers
R.C. 4123.35. Employers must pay premiums into the state insurance fund or qualify to self-insure. R.C. 4123.01 defines a covered employer as one with one or more employees. R.C. 4123.15 creates a religious-sect exemption for qualifying employers and employees who follow established tenets of a recognized sect. R.C. 4123.01 holds the definitions that exclude certain workers from “employee.”
Deadlines in the Ohio Workers Compensation Act
Waiting period: R.C. 4123.55. No compensation is paid for the first 7 days (first week) of total disability. That week is paid retroactively if the worker is totally disabled for a continuous 14 days (two weeks) or more.. Wage-loss rate: R.C. 4123.56.
For the first 12 weeks the rate is 72 percent of the full weekly wage, capped at the lesser of the statewide average weekly wage or 100 percent of net take-home weekly wage. After that it is 66.67 percent (66 2/3) of the average weekly wage. Maximum and minimum amounts are set yearly under this section, so check BWC for the current figure..
Ohio Workers Compensation Act: Key Sections at a Glance
The sections of the Ohio workers compensation act that decide most cases, each with its citation:
| Coverage mandate | R.C. 4123.35. Employers must pay premiums into the state insurance fund or qualify to self-insure. R.C. 4123.01 defines a covered employer as one with one or more employees. |
| Exemptions | R.C. 4123.15 creates a religious-sect exemption for qualifying employers and employees who follow established tenets of a recognized sect. R.C. 4123.01 holds the definitions that exclude certain workers from “employee.” |
| Report an injury | The Ohio code sets no fixed number of days for a worker to tell the employer. In practice the one-year notice bar in R.C. 4123.84 controls, so prompt notice is strongly advised. Confirm with BWC and a licensed attorney. |
| File a claim | 1 year from the date of injury or death, under R.C. 4123.84 (for injuries on or after September 29, 2017). Written notice naming the specific body parts injured must reach BWC or the Industrial Commission in that year. The bar does not apply if, within that year, the employer paid wages in lieu of compensation or furnished treatment. The deadline may be extended if the employer failed to file the report required by R.C. 4123.28. |
| Waiting period | R.C. 4123.55. No compensation is paid for the first 7 days (first week) of total disability. That week is paid retroactively if the worker is totally disabled for a continuous 14 days (two weeks) or more. |
| Wage-loss rate | R.C. 4123.56. For the first 12 weeks the rate is 72 percent of the full weekly wage, capped at the lesser of the statewide average weekly wage or 100 percent of net take-home weekly wage. After that it is 66.67 percent (66 2/3) of the average weekly wage. Maximum and minimum amounts are set yearly under this section, so check BWC for the current figure. |
| Exclusive remedy | R.C. 4123.74 makes complying employers immune from employee lawsuits over work injuries and occupational diseases. The main exception is an employer intentional tort under R.C. 2745.01. That requires deliberate intent to injure. It is presumed when an employer deliberately removes a safety guard or deliberately misrepresents a toxic or hazardous substance. |
| Retaliation | R.C. 4123.90 bars discharging, demoting, reassigning or taking any punitive action against a worker for pursuing a claim. Remedies may include reinstatement, back pay and attorney fees. The employer must receive written notice within 90 days of the adverse action, and suit must be filed within 180 days. |
| Uninsured employer penalty | R.C. 4123.77 and R.C. 4123.75. A noncomplying private employer loses the protections of the Act and can be sued for damages. In that suit it cannot use the fellow-servant, assumption-of-risk or contributory-negligence defenses. The injured worker may also apply to BWC for payment from the surplus fund. |
| Who hears disputes | R.C. 4123.511 sends contested claims to the Industrial Commission of Ohio. A district hearing officer hears the claim first, then a staff hearing officer on appeal, then the Commission may hear a further appeal. R.C. 4123.512 allows appeal to the court of common pleas on certain issues. |
The Exclusive-Remedy Bargain in the Ohio Workers Compensation Act
R.C. 4123.74 makes complying employers immune from employee lawsuits over work injuries and occupational diseases. The main exception is an employer intentional tort under R.C. 2745.01. That requires deliberate intent to injure. It is presumed when an employer deliberately removes a safety guard or deliberately misrepresents a toxic or hazardous substance.
Retaliation and Penalties Under the Ohio Workers Compensation Act
R.C. 4123.90 bars discharging, demoting, reassigning or taking any punitive action against a worker for pursuing a claim. Remedies may include reinstatement, back pay and attorney fees. The employer must receive written notice within 90 days of the adverse action, and suit must be filed within 180 days. R.C. 4123.77 and R.C. 4123.75. A noncomplying private employer loses the protections of the Act and can be sued for damages.
In that suit it cannot use the fellow-servant, assumption-of-risk or contributory-negligence defenses. The injured worker may also apply to BWC for payment from the surplus fund. R.C. 4123.511 sends contested claims to the Industrial Commission of Ohio. A district hearing officer hears the claim first, then a staff hearing officer on appeal, then the Commission may hear a further appeal. R.C.
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4123.512 allows appeal to the court of common pleas on certain issues.
Recent Amendments to the Ohio Workers Compensation Act
Senate Bill 196 (135th General Assembly), signed December 19, 2024 and effective March 20, 2025. It amended several sections, including 4123.84, 4123.511, 4123.54, 4123.56 and 4121.45, with changes covering professional athletes and coaches and interstate claims. House Bill 81 (136th General Assembly), the BWC budget for FY2026-27, was effective June 27, 2025, with some provisions effective September 26, 2025.
It lets BWC buy, repair and replace work-related prosthetic devices after a claim has expired. It renamed the ombudsperson system the “Workers’ Compensation Customer Advocacy Office” and changed rules for incarcerated workers in the Prison Industries Enhancement Certification Program.
How to Read the Ohio Workers Compensation Act
Statute pages are written for lawyers, so read the Ohio workers compensation act in this order: the definitions section (who is an employee), the coverage section, then the specific section for your question, using the citations above. The official code is the source; the summaries on legal-information sites are not.
If a section of the Ohio workers compensation act seems to conflict with what an insurer told you, the section wins — and the state agency’s information line can confirm it for free.
Applying the act: the Ohio claim guide turns these sections into steps and dates, and the Ohio requirements guide covers the employer side.
Frequently Asked Questions
Where is the Ohio workers compensation act in the code?
Ohio Revised Code Chapter 4123 (Title 41, Labor and Industry). Chapter 4121 covers the Industrial Commission and the Bureau of Workers’ Compensation (BWC). R.C. 2745.01 covers employer intentional torts.. The sources below link to the official text.
How long do I have to report a work injury under the Ohio act?
The Ohio code sets no fixed number of days for a worker to tell the employer. In practice the one-year notice bar in R.C. 4123.84 controls, so prompt notice is strongly advised. Confirm with BWC and a licensed attorney.. Report in writing as soon as possible either way.
Can I sue my employer instead of using the Ohio workers compensation act?
Usually not — the exclusive-remedy section bars most lawsuits against a covered employer. Claims against third parties, and against an uninsured employer, are the common exceptions.
Official Ohio Sources & Resources
- Ohio Ohio Bureau of Workers’ Compensation (BWC), which handles insurance and claims, and the Industrial Commission of Ohio, which hears disputes: https://www.bwc.ohio.gov
- Ohio Workers’ Comp Statute: https://codes.ohio.gov/ohio-revised-code/chapter-4123
- U.S. Department of Labor — Workers’ Comp: dol.gov
- Insurance Information Institute: iii.org
This Ohio workers compensation act guide was last verified against official Ohio sources in October 2026. Rules change — confirm the current figure with the state agency or a licensed attorney.
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Disclaimer: This guide is informational only and is not legal, medical, or financial advice. Workers Comp Explained is an independent educational resource, not a law firm or insurer. Workers’ comp benefits, settlement values, deadlines, and requirements vary by state and by the specific facts of your injury and change over time, and any settlement figures here are illustrative only.
Confirm your rights and any deadline with your state’s workers’ compensation board and a licensed attorney before you act.