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Workers Compensation and Ruediger Formula in Missouri

Workers’ compensation and the Ruediger formula are two different methods to calculate compensation for a worker who has been injured on the job. Learn more.

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What is the Ruediger Formula?

A worker’s compensation claim can be complicated enough on its own, but when there are multiple parties involved, it becomes even more complex.

If you suffer an injury on the job and a third party besides you and your employer is involved, you may have grounds for a workers’ compensation claim. But, you could potentially also file a personal injury lawsuit against the third party.

When this happens, the injured person’s settlement may have what is known as a subrogation lien placed on it by the employer or insurance company. A lien is the right of recovery by the employer or insurance company. Basically, if the employer or insurance pays for your medical care and then you also receive a settlement from a third party, your employer or insurance can recoup the money they paid for your care.

The Ruediger formula calculates the exact amount an employer’s workers’ compensation carrier needs to reimburse if a third party pays later for the same injury.

A subrogation claim is third-party recovery money that an employer is entitled to when workers sue the third person or party for their injury because the employer initially paid for the injury.

What is Third-Party Recovery?

A third-party case most commonly happens when you have had a car accident and a compensation claim together. This can occur when you get into a car accident resulting in personal injury while driving a work vehicle.

Under Missouri law, the owner of the business bears the cost of medical bills when an employee gets an injury while on the job.

But, Missouri workers’ compensation law also offers an employer the subrogation right to third-party tortfeasor recovery. This means the employer can recover of all the expenses they pay for the employee’s medical bills. The goal of this law is to prevent workers from receiving two benefits after an accident.

Ruediger Formula calculations show the exact amount an employer gets from third-party recovery.

How to Apply Ruediger Formula

The following elements are considered in the Ruediger formula;

  • Expenses of the third party should always be subtracted from the third party’s claim.
  • The balance received should be divided in the same ratio as the amount the employer paid for medical expenses.
  • The compensation to the employee should always be considered an advance payment while waiting for any future installment benefits.
  • The case Ruediger v. Kallmeyer Brothers Service states that an employee is entitled to a future compensation in the scenario where what was paid to them is exhausted.

For an employer to receive this third-party recovery, they need to pay attorney’s fees.

After attorney’s fees are deducted, the balance is shared between the employer and the employee or the employee’s dependents. The amount is shared in the same ratio.

The employer bears the total sum gained if no comparative fault is found on an employee or total damages determined by a comparative fault.

With that in mind, here’s a practical example involving a business owner with a third-party settlement.

How to Calculate the Ruediger Formula


  1. First, we add the amount paid in the workers’ compensation claim.
  2. Second, we sum the total in the civil claim.
  3. In the third step, we divide the total amount of workers’ compensation by the total amount of the civil claim.
  4. In the fourth step, we take the total amount of the civil claim and subtract the attorney’s fees.
  5. Lastly, we multiply the total compensation amount divided by the civil claim by the total of the civil claim subtracting attorney’s fees.

The final sum from this will be the subrogation amount for the business owner. This process often involves two attorneys, a specific lawyer for a workers’ compensation lien and another to handle a workers’ compensation claim.

How Does Missouri Workers Compensation Settlement Work?


Settlement occurs when an employee voluntarily agrees to end a workers’ compensation case in exchange for some amount of money after an accident in the workplace.

This agreement means the employee is voluntarily foregoing their workers’ compensation claim or benefits.


Medical Expenses in Workers Compensation Law

If you are injured at the workplace, don’t assume that your health insurance will cover your medical bills.

It may be worthwhile to speak to a St. Louis workers’ compensation attorney and see if you have a claim before your medical expenses are settled.

Work Compensation Settlements in Missouri


Settlements can be paid out in various ways. Some employees in Missouri prefer a weekly payment instead of a lump sum after an accident.

The risk of taking a lump sum is that you might agree to it before you find out you need additional medical care or have other expenses. By that point, you may have already used the money from the settlement.

Even if you are taking a settlement versus fighting it out in court, workers’ comp lawyers can still be of help. They will be able to assess if the settlement is fair and guide you through what terms to consider.


What Happens After a Worker’s Compensation Settlement?

After you’ve signed a settlement agreement contract, the case goes on to be approved by a Missouri workers’ compensation judge.

The judge reviews the agreement to ensure it’s fair to you as the employee. However, based solely on your case, a judge may not know the extent of your medical history or any future health needs you might require to recover.


When can a Judge Disagree With a Settlement?

  • If the settlement is coming from a fraudulent point.
  • If the employee voluntarily disagrees with the payment.
  • If the employee concerned is not aware of their rights.
  • If the settlement is against the rights of the parties involved.

In the case where the judge agrees upon payment, the next step is for your insurance company to cut a check.

The benefits you get after an agreement are determined by the nature of your injury, your probability of returning to work, and the previous wage before the injury.

If you need advice on your workers’ comp claim or benefits, you should consider consulting a Missouri workers’ compensation attorney near you.

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