Experience Modification Rate in North Carolina Workers Comp: Claims, Reserves and Payroll
For established North Carolina employers, the experience mod can affect far more than the workers compensation invoice. Learn how open claims, reserves, payroll, class codes and claims management can affect your EMR and what management should review before renewal.
- Your experience mod compares your workers compensation loss experience with the losses expected for an employer of similar size and classification.
- The North Carolina Rate Bureau calculates and issues experience modifications for qualifying North Carolina intrastate risks.
- Experience rating normally uses three policy years of class code, payroll and loss information.
- Open claims can matter because incurred loss can include both amounts already paid and amounts reserved for expected future costs.
- Management should review large open claims, reserves, class codes and payroll well before the renewal marketing process begins.
- A broker cannot erase legitimate losses, but can help identify data problems, coordinate claim reviews and improve renewal preparation.
Your experience modification rate is a workers compensation pricing factor that reflects your historical loss experience compared with expected losses.
A 1.00 mod is unity. A mod below 1.00 is generally a credit. A mod above 1.00 is generally a debit.
For a larger employer, the important question is not simply whether the mod is high. Management should understand which claims, reserves, payroll classifications and operating changes are driving the number.
If your North Carolina company has substantial workers compensation payroll, several years of claims history and multiple open claims heading into renewal, the experience modification rate can become one of the most financially important numbers in the insurance program.
For a company with a modest workers compensation premium, a change in the mod may be inconvenient. For a company spending $100,000, $250,000 or more on workers compensation, the same change can represent tens of thousands of dollars.
Contractors can face another problem. Some project owners, general contractors and procurement programs use workers compensation experience as part of vendor qualification. In those situations, a deteriorating experience mod can affect revenue opportunities in addition to insurance cost.
I see this become especially relevant with established contractors and employers throughout Wake Forest, Raleigh, Durham, Cary and the greater Triangle as they add payroll, crews, vehicles, locations and larger contracts. A workers compensation program that was relatively simple at $2 million in revenue can require much more active claims and experience mod management after the company grows to $10 million, $20 million or more.
That is why an established employer should not wait until the renewal quote arrives to ask what its EMR means.
What Is an Experience Modification Rate in North Carolina Workers Comp?
Your experience modification rate, commonly called an experience mod, EMR or mod, compares your historical workers compensation loss experience with the loss experience expected for an employer of similar size and classification.
The North Carolina Rate Bureau explains that experience rating uses class code, payroll and loss data developed during past policy years, normally a three year experience period, to help forecast future workers compensation insurance costs.
A 1.00 mod is unity.
- A mod below 1.00 is a credit modification and generally decreases the premium affected by experience rating.
- A mod above 1.00 is a debit modification and generally increases the premium affected by experience rating.
| Experience Mod | Example on $100,000 of Premium Subject to the Mod |
|---|---|
| 0.80 | Approximately $80,000 |
| 0.90 | Approximately $90,000 |
| 1.00 | Approximately $100,000 |
| 1.20 | Approximately $120,000 |
| 1.40 | Approximately $140,000 |
This is intentionally simplified. Workers compensation premium includes other rating factors and adjustments.
But the example shows why experience rating becomes a management issue once premium reaches meaningful scale.
Who Calculates the Experience Mod in North Carolina?
For qualifying risks whose operations are conducted in North Carolina, the North Carolina Rate Bureau has responsibility for calculating and issuing the experience modification.
NCRB also provides access to the applicable experience rating worksheet for the carrier of record and producer of record.
NCCI remains relevant because North Carolina uses NCCI experience rating methodology and workers compensation manual material in its system. NCCI may also issue an interstate experience modification when a business has applicable operations in North Carolina and other states.
For a North Carolina intrastate account, look to the NCRB experience rating worksheet when determining what payroll, classifications and losses are feeding the actual mod.
What Information Goes Into the Experience Mod?
The mod is not calculated by simply adding your claims and dividing them by premium.
Several major inputs matter.
Payroll
Payroll by workers compensation classification helps determine the losses that would be expected for an employer of your size.
Workers Compensation Class Codes
The type of work being performed matters because different operations have different expected loss levels.
A contractor with significant field payroll is not expected to produce the same loss experience as a professional office.
Historical Workers Compensation Losses
Qualifying loss information from the applicable experience period is incorporated into the calculation.
Primary and Excess Losses
The formula does not treat every claim dollar identically. Losses are divided into primary and excess components and incorporated into the experience rating calculation.
This is one reason repeated claim frequency deserves attention. Several losses can tell a very different story than a single isolated accident.
What Years Are Used in a North Carolina Experience Mod?
Experience rating normally uses a three year experience period.
That creates an important delay between what happens operationally and when management experiences the full financial effect.
A difficult loss year may remain part of the rating picture for several renewal cycles.
The reverse is also true. Safety improvements made today will not instantly erase prior experience.
For that reason, employers should manage workers compensation as a multiyear process rather than a once a year quoting exercise.
How Open Claims and Reserves Can Affect Your Experience Mod
This is one of the most important issues for a larger workers compensation account.
A claim can include money that has already been paid and money the carrier currently expects may still need to be paid.
The expected future amount is reflected through the claim reserve.
Management should therefore understand the claim’s total incurred value, not merely what has already been paid.
| Claim Component | Example Amount |
|---|---|
| Paid to Date | $18,000 |
| Remaining Reserve | $42,000 |
| Total Incurred | $60,000 |
Management may look at this example and think it has an $18,000 workers compensation claim because that is the amount already paid.
From a loss reporting and experience rating perspective, the $60,000 incurred amount may be far more important.
The goal is not to pressure a carrier into lowering reserves merely because a lower number would help the experience mod.
The correct question is whether the reserve still reflects the current facts of the claim.
A High Claim Reserve Is Not Automatically Wrong
A reserve is an estimate of the expected ultimate cost of a claim.
A serious injury may legitimately require a substantial reserve because of expected medical treatment, disability benefits, rehabilitation, litigation, permanent impairment or future medical care.
A high reserve by itself is therefore not evidence of a mistake.
The better management question is:
Does the current reserve still accurately reflect what we know about this claim today?
That creates a legitimate claims management discussion.
When Should an Open Claim Receive a Reserve Review?
Larger employers should periodically review their material open claims and determine whether current information supports the current incurred amount.
| Claim Situation | Question Management Should Ask |
|---|---|
| Employee returned to full duty | Does the current claim estimate reflect the successful return to work? |
| Employee is working modified duty | Is the anticipated disability exposure still accurate? |
| Medical treatment changed | Has the claim been reevaluated using the current treatment plan? |
| Surgery was anticipated but is no longer expected | Does the medical reserve still reflect an older assumption? |
| Claim has had limited activity | What is preventing the claim from progressing? |
| Litigation has been resolved | Has the claim been reevaluated following the resolution? |
| Large reserve remains | What specific future exposure supports the remaining amount? |
| Claim appears ready for closure | Is anything still preventing closure? |
Why Waiting Until Renewal Can Be Too Late
One of the biggest mistakes with a substantial workers compensation account is treating claims review as part of the quoting process.
NCRB states that it endeavors to calculate and issue qualifying experience modifications at least 90 days before the effective rating date.
If management waits until 30 days before renewal to begin examining its losses, it may have very little time to understand what information has already entered the experience rating process.
For a larger account, I would rather begin the detailed workers compensation review months earlier.
Is your renewal being driven by claims?
If your workers compensation premium is significant and open claims or the experience mod are creating renewal pressure, I can help review what is actually driving the account.
Do not send private claim documents through this form. I can tell you what information to gather.
What I Would Review 120 Days Before a Large Workers Compensation Renewal
At roughly four months before renewal, management and the broker should already understand the major factors affecting the program.
1. Current Experience Modification
Do not simply record the number.
Determine whether it is improving, deteriorating or remaining relatively flat.
2. Experience Rating Worksheet
Identify the policy years, payroll, classifications and claims feeding the current calculation.
3. Current Loss Runs
Separate open claims from closed claims.
Then rank the open claims by total incurred value.
4. Paid Amount Versus Reserve
A large gap between the amount paid and total incurred deserves an explanation.
The reserve may be entirely appropriate. Management should still understand the future exposure supporting it.
5. Current Claim Status
For each material open claim, management should understand:
- Whether the employee is working
- Whether modified duty is involved
- What medical treatment remains
- Whether surgery is contemplated
- Whether litigation is involved
- What is preventing additional resolution
- Whether the claim has a realistic path toward closure
6. Payroll by Class Code
A company can grow rapidly while its workers compensation classification structure remains stuck in the past.
7. Operational Changes
Review changes involving:
- Acquisitions
- Ownership
- New states
- New divisions
- Discontinued operations
- Significant payroll growth
- Subcontractor usage
- Changes in employee duties
Why Claim Frequency Deserves Management Attention
Employers naturally focus on their largest claim.
Experience rating does not treat every dollar of loss identically. The formula separates losses into primary and excess components.
The practical lesson is that repeated losses matter.
Consider two companies.
Company A: One significant workers compensation claim during the experience period.
Company B: Repeated strains, falls, cuts and employee driving injuries across multiple crews.
Even when the total claim dollars ultimately become similar, Company B may be showing a much more concerning operational pattern.
Repeated losses can indicate issues involving:
- Employee training
- Supervisor accountability
- Hiring
- Vehicle safety
- Personal protective equipment
- Lifting procedures
- Housekeeping
- Equipment use
- Return to work procedures
- Overall safety management
How Payroll Growth Can Change the Experience Rating Picture
Claims are only one side of experience rating.
Expected losses are influenced by the employer’s payroll and classifications.
That becomes particularly important when a company is growing quickly.
Imagine a contractor that grows from $3 million to $12 million in revenue, adds crews, expands payroll, moves into additional states and begins pursuing larger commercial projects.
Its workers compensation program may no longer resemble what existed several years earlier.
Management should confirm:
- Classifications still match actual operations
- Payroll is being allocated correctly
- New operations have been disclosed
- Eligible clerical classifications are being handled correctly
- Employees working in other states are being reported appropriately
- Acquisitions and ownership changes have been addressed
For CFOs and Controllers: The Mod Is a Cost Signal, Not Just an Insurance Number
Once workers compensation premium reaches meaningful scale, the experience mod deserves the same type of financial attention management gives other recurring operating expenses.
Suppose $150,000 of workers compensation premium is subject to experience rating before other adjustments.
| Experience Mod | Simplified Premium Effect |
|---|---|
| 0.85 | $127,500 |
| 1.00 | $150,000 |
| 1.25 | $187,500 |
The difference between a 0.85 and 1.25 mod in that simplified example is $60,000 in one policy year.
The final workers compensation premium will include other rating elements, but the scale of the example explains why claim performance belongs in conversations involving finance, safety, operations and ownership.
A High Experience Mod Can Cost More Than Insurance Premium
Contractors can face an additional consequence.
Some project owners, general contractors and procurement programs evaluate workers compensation experience when deciding whether a contractor meets their qualification standards.
These requirements are contractual and vary by organization. There is no universal North Carolina rule requiring every contractor to maintain the same maximum experience mod.
But if a particular customer imposes an experience mod threshold, the problem becomes much larger than an insurance invoice.
Losing eligibility for a multimillion dollar project because of an unacceptable safety or experience metric can be financially more significant than the workers compensation premium increase itself.
What Happens at a 1.5 Experience Modification in North Carolina?
North Carolina gives the 1.5 threshold special significance.
Employers with an experience rate modifier of 1.5 or greater are subject to North Carolina safety and health program requirements.
Employers with an experience rate modifier of 1.5 or greater and 11 or more employees are also subject to the safety and health committee requirements.
These requirements come from North Carolina General Statutes Article 22 and related North Carolina Department of Labor rules.
An employer approaching this threshold should not treat the issue as a last minute insurance renewal problem.
It deserves management attention involving claims, safety, loss control and the requirements that apply to the organization.
Return to Work and Claim Duration
An employer cannot prevent every injury.
It can influence what happens after an injury occurs.
A structured return to work process can help an employee return to productive work within medically appropriate restrictions when suitable work is available.
The purpose is not to force an injured employee back before medically appropriate.
The purpose is to avoid a situation where a manageable injury becomes a prolonged claim because nobody coordinated:
- Medical restrictions
- Modified duties
- Supervisor responsibilities
- Employee communication
- Carrier communication
- Claim follow up
A Practical Claim Review Process for Larger Employers
If workers compensation is a material insurance expense, I would not limit loss review to one meeting immediately before renewal.
A recurring claim review process should track the following information for significant open claims.
| Item | What Management Should Understand |
|---|---|
| Employee | Current employment and work status |
| Injury | Nature and severity |
| Date of Loss | How long the claim has remained open |
| Paid Amount | Amount already paid |
| Reserve | Remaining expected cost |
| Total Incurred | Current total claim estimate |
| Medical Status | Treatment completed and expected |
| Work Status | Full duty, modified duty or out of work |
| Litigation | Whether attorneys, hearings or disputes are involved |
| Next Action | What needs to happen next and who is responsible |
| Closure Potential | Whether there is a realistic path toward closure |
Questions Management Should Ask During a Workers Compensation Claim Review
- What is currently keeping this claim open?
- What future costs are contemplated in the reserve?
- Has anything materially changed since the reserve was established?
- What is the employee’s current work status?
- Are medically appropriate modified duties available?
- Is additional information needed from the employer?
- What is the next significant medical event?
- Is there a realistic path toward closure?
- Has the claim recently been reviewed by the adjuster?
- Does the current incurred value still reflect what is known about the claim?
Those are much stronger questions than simply asking the carrier to lower the reserve.
Can Your Experience Mod Be Wrong?
Yes.
The mathematical calculation may be correct while one of the underlying inputs is not.
Potential problems can include:
- Incorrect payroll
- Incorrect workers compensation classifications
- Incorrect ownership information
- Incorrect reported loss values
- Duplicate information
- Data associated with the wrong entity
- Errors in information reported for experience rating
If the mod looks wrong, the first step is to review the experience rating worksheet and supporting data.
Do not start with the assumption that the formula itself is wrong.
Changing Insurance Brokers Does Not Erase the Mod
Workers compensation loss history does not disappear because the company changes insurance brokers.
Moving to a different carrier does not automatically erase legitimate experience either.
A company should therefore be cautious of anyone promising that a broker change will simply wipe away unfavorable workers compensation history.
What a different broker can potentially improve is the process surrounding the account.
- Review the experience rating worksheet
- Identify incorrect data
- Coordinate structured claim reviews
- Ask appropriate reserve questions
- Review classifications and payroll
- Improve the renewal timeline
- Coordinate carrier loss control resources
- Document management’s corrective actions
- Prepare a better underwriting submission
- Develop a broader market strategy
A broker cannot erase valid losses, force a carrier to reduce a legitimate reserve, manufacture a lower experience mod or change the applicable North Carolina rating rules.
What Underwriters Need to See After a Bad Loss Year
A loss run tells an underwriter what happened.
A strong renewal submission should also explain what management changed because of what happened.
Depending on the loss history, useful information may include:
- Changes to employee training
- New supervisor accountability procedures
- Formal return to work procedures
- Updated vehicle or driver controls
- Changes in hiring or onboarding
- New personal protective equipment requirements
- Carrier loss control recommendations that were implemented
- Changes to operations that eliminate the exposure that caused the claim
Underwriters cannot ignore legitimate losses.
But there is an important difference between a company that has losses and does nothing, and a company that can demonstrate that management identified the cause and changed the process.
When Should a Company Start Actively Managing Its Experience Mod?
Before it becomes a serious problem.
Management should pay particular attention when:
- Workers compensation premium has become a significant expense
- The company has several material open claims
- Reserves have increased significantly
- The mod has moved above 1.00
- The mod has deteriorated for consecutive years
- The mod is approaching 1.5
- Customers request experience mod documentation
- The mod is affecting project eligibility
- Payroll has grown rapidly
- The company has expanded into new operations or states
- The company acquired another business
- Ownership changed
- The workers compensation renewal has become difficult to market
- Management is considering changing brokers
North Carolina Experience Mod Review Checklist
What Your Insurance Broker Should Be Able to Explain
For a substantial workers compensation account, I would expect the broker to be able to answer:
- What is driving the current experience mod?
- Which claims are contributing most heavily?
- Which significant claims remain open and why?
- Which reserves deserve a factual review with the carrier?
- Are payroll and classifications accurate?
- Has the business changed in ways that affect the workers compensation structure?
- What corrective actions should underwriters know about?
- What markets realistically fit the account?
- What should management be doing before the next mod is calculated?
The renewal should not be the first time management learns the answer to those questions.
Frequently Asked Questions
What is a good experience modification rate for a North Carolina business?
A 1.00 experience modification is unity. A mod below 1.00 is a credit modification and generally decreases the premium affected by experience rating. A mod above 1.00 is a debit modification and generally increases it.
Who calculates the experience modification rate in North Carolina?
The North Carolina Rate Bureau is responsible for calculating and issuing experience modifications for qualifying risks whose operations are conducted in North Carolina. Interstate experience modifications may be issued by NCCI when operations involve multiple applicable states.
Do open workers compensation claims affect an experience mod?
Open claims can contribute incurred loss information used in experience rating. Employers should understand the amount paid, remaining reserve and total incurred value on significant open claims.
Can a workers compensation claim reserve be reviewed?
Yes. An employer or broker can ask the carrier to review an open claim and explain the reserve. A reserve should not be reduced simply to improve an experience mod. The question is whether current medical, disability, litigation and return to work information still supports the current estimate.
Can changing insurance brokers lower an experience mod?
Changing brokers does not erase valid workers compensation loss history. A broker can review the experience rating worksheet, identify data errors, coordinate claim reviews, review classifications and improve renewal preparation.
How many years are used in a North Carolina experience mod?
North Carolina experience rating normally uses class code, payroll and loss information developed during a three year experience period. The exact policy periods used depend on the applicable experience rating rules.
What happens when a North Carolina employer has a 1.5 experience modification?
North Carolina employers with an experience rate modifier of 1.5 or greater are subject to state safety and health program requirements. Safety committee requirements apply to employers with an experience rate modifier of 1.5 or greater that employ 11 or more employees.
Does switching workers compensation carriers reset the experience mod?
No. Switching carriers does not normally erase the payroll and loss experience used to calculate the applicable experience modification.
Who can review a workers compensation experience mod in North Carolina?
Stephen Ellias, CLCS, founder of Carolina Risk Partners LLC in Wake Forest, works with North Carolina employers on workers compensation experience modification reviews, claims, reserves, classifications and renewal strategy. Stephen is a licensed North Carolina insurance professional, license number 20374030.
Stephen Ellias is the founder of Carolina Risk Partners LLC, an independent commercial insurance agency based in Wake Forest, North Carolina. He is a licensed North Carolina insurance professional, license number 20374030, and holds the Commercial Lines Coverage Specialist designation. Stephen works with North Carolina businesses on workers compensation, claims, experience modification, audits, commercial auto, contractor insurance and complex commercial insurance programs.
Has Your Company Outgrown a Basic Workers Comp Renewal?
Carolina Risk Partners works with established employers throughout Wake Forest, Raleigh, Durham, Cary and across North Carolina. If the experience mod, open claims, reserves, payroll growth or a difficult renewal are becoming material business issues, we can review what is driving the program and what can realistically be improved.
Disclaimer: This article is for general educational purposes only and is not legal advice. Workers compensation rating rules, claims, reserves, classifications, contract requirements and underwriting decisions vary by employer and individual circumstances. Current rules and the specific facts of an account should be reviewed before making insurance, legal or employment decisions.
