What Is an Experience Mod (EMR) and How It Affects Your Premium
- Jun 5
- 5 min read
If your workers’ comp premiums seem higher than expected, your experience mod may be the reason. Many contractors hear about EMR but don’t fully understand how it works—or how much it can impact their costs. Knowing what an experience mod (EMR) is and how it affects your premium can help you take control of your insurance costs.
In this guide, we’ll break it down in simple terms so you can understand what your EMR means and how to improve it.
What Is an Experience Mod (EMR)?
An experience modification rate (EMR)—often just called an experience mod—is a number used to adjust your workers’ compensation insurance premium based on your claims history.
Think of it as a score that reflects how safe your business has been compared to others in your industry.
An EMR of 1.0 is considered average
Below 1.0 means better-than-average claims history
Above 1.0 means worse-than-average claims history
Your EMR directly impacts how much you pay for workers’ compensation insurance.
How Does an Experience Mod Affect Your Premium?
(Direct Answer Section)
Your experience mod (EMR) affects your workers’ compensation premium by increasing or decreasing your base rate.
If your EMR is below 1.0, your premium may be reduced
If your EMR is above 1.0, your premium may increase
For example:
A 0.85 EMR may lower your premium compared to the standard rate
A 1.25 EMR may raise your premium
The exact impact depends on your payroll, industry classification, and other factors, but the EMR acts as a multiplier on your base premium.
Why EMR Matters for Contractors
For contractors and service businesses, EMR is more than just a number—it can affect your ability to win jobs.
Job Eligibility
Many general contractors and project owners require:
EMR below a certain threshold (often around 1.0 or lower)
A high EMR can limit your ability to bid on projects.
Competitive Advantage
A lower EMR shows:
Strong safety practices
Good risk management
Fewer injuries and claims
This can make your business more attractive to clients and partners.
Insurance Costs
Even small changes in your EMR can have a noticeable impact on your premium over time, especially as your payroll grows.
How Is EMR Calculated?
Your EMR is calculated using a formula created by rating bureaus based on your claims history and payroll data.
While the formula itself is complex, the key factors include:
Claims History
Losses from workplace injuries are the biggest driver.
This includes:
Medical-only claims
Lost-time claims (more serious injuries)
Payroll Size
Your payroll is used to estimate expected losses for your industry.
The system compares:
Your actual losses
Your expected losses
Industry Classification
Different industries have different baseline risks.
For example:
Roofing and construction typically have higher expected losses
Office-based businesses tend to have lower risk
Time Period
EMR is typically calculated using the past three years of claims data, excluding the most recent policy year.
This helps stabilize the rating over time.
What Impacts Your EMR the Most?
Not all claims affect your EMR equally.
Severity of Claims
One large claim can impact your EMR more than several small ones.
Serious injuries involving:
Lost work time
Surgery or long recovery periods
tend to have the biggest effect.
Frequency of Claims
Multiple smaller claims can still add up.
A pattern of:
Repeated minor injuries
Unsafe workplace practices
can signal higher risk.
Open Claims
Claims that remain open or unresolved may continue affecting your EMR until they are closed.
Managing claims efficiently can help limit long-term impact.
How to Improve Your EMR
Improving your EMR takes time, but it’s one of the most effective ways to lower your insurance costs.
Build a Strong Safety Program
Focus on prevention:
Regular safety training
Clear jobsite procedures
Proper equipment use
The Occupational Safety and Health Administration (OSHA) offers resources to improve workplace safety at https://www.osha.gov.
Report Claims Early
Quick reporting helps:
Begin treatment sooner
Limit claim severity
Reduce complications
Manage Claims Actively
Stay involved after a claim happens.
This includes:
Communicating with injured employees
Coordinating return-to-work plans
Monitoring claim progress
Implement Return-to-Work Programs
Helping employees return to light duty can:
Reduce lost-time claims
Lower claim costs
Improve recovery outcomes
Review Your EMR Regularly
Mistakes can happen in calculations.
Work with your agent to:
Review your experience rating worksheet
Check for errors in payroll or claims data
Correct issues when needed
You can learn more about how workers’ compensation systems work through the National Council on Compensation Insurance (NCCI) .
When Does Your Business Get an EMR?
Not all businesses have an EMR right away.
Typically, you’ll receive an EMR when:
You’ve had workers’ compensation coverage long enough
You meet minimum premium or payroll thresholds
New businesses usually start with a default rate (often around 1.0) until enough data is available.
Common Misconceptions About EMR
Understanding what EMR is—and isn’t—can help you avoid confusion.
“A single claim will ruin my EMR forever”
Not true. EMR is based on a rolling period. Older claims eventually drop off.
“Small claims don’t matter”
They still count. Frequent small claims can raise your EMR over time.
“EMR only affects insurance cost”
It also affects:
Job eligibility
Business reputation
Client trust
“There’s nothing I can do to change it”
You can improve your EMR with better safety practices and claims management.
EMR vs Workers’ Comp Rate: What’s the Difference?
These two are often confused.
Workers’ Comp Rate
Based on your industry classification
Set by rating organizations
Applied to your payroll
EMR
Based on your individual claims history
Adjusts your premium up or down
Reflects your business performance
Think of the base rate as your starting point—and EMR as your performance adjustment.
Why Proactive Risk Management Matters
Your EMR is not just an insurance metric—it’s a reflection of how you run your business.
A proactive approach includes:
Training employees regularly
Investing in safety equipment
Creating a culture of accountability
Over time, these efforts can lead to:
Fewer injuries
Lower claim costs
Better EMR performance
How a Licensed Agent Can Help
Navigating EMR and workers’ comp can be complex.
A licensed agent can:
Explain your current EMR
Identify areas for improvement
Help you build a risk management plan
Review your policy and classifications
Every business is different, so personalized advice matters.
FAQ: Experience Mod (EMR)
What is a good EMR for contractors?
An EMR below 1.0 is generally considered favorable. It indicates better-than-average safety performance compared to similar businesses.
How often is EMR updated?
EMR is usually updated annually based on your most recent available claims data.
Can I lower my EMR quickly?
Improvement takes time, but you can start by reducing claims, improving safety practices, and managing existing claims effectively.
Does EMR affect general liability insurance?
No. EMR specifically applies to workers’ compensation insurance, not general liability.
What happens if my EMR is too high?
A high EMR may lead to higher premiums and limit your ability to qualify for certain jobs or contracts.
Final Thoughts
Your experience mod (EMR) plays a major role in your workers’ compensation costs—and your business reputation. While it’s based on past performance, it’s something you can actively improve with the right strategy.
Understanding how EMR works gives you the power to control your risks, strengthen your operations, and stay competitive in your industry.
Get Help Managing Your Workers’ Comp Costs
If you want help understanding your EMR or lowering your workers’ compensation costs, Wexford Insurance is here to guide you.
Call 317-942-0549 or visit https://www.wexfordins.com/ to request a free quote and speak with a licensed agent today.
