If your workers comp premium went up this year, you are not alone. Many business owners assume rate increases are random or simply driven by the insurance company. The truth is more strategic.
Workers comp pricing is based on specific measurable factors. When you understand what drives your premium, you can control more of it than you think.
Let’s break down what actually raises your workers comp rates and what you can do about it.
1. Your Claims History and Experience Mod
The biggest factor in your workers comp cost is your experience modification factor, often called your mod.
Your mod compares your company’s claims history to other businesses in your industry.
- A mod of 1.00 is average
- Below 1.00 means you are safer than average
- Above 1.00 means you are riskier than average
How Your Experience Mod Impacts Your Premium
Let’s make this simple.
Assume your base workers comp premium is $50,000.
Here is what happens at different experience modification factors:
- 0.80 Mod = $40,000 premium
- 1.00 Mod = $50,000 premium
- 1.25 Mod = $62,500 premium
- 1.50 Mod = $75,000 premium
As you can see in the chart above, even a small increase in your mod has a significant financial impact.
A company with a 1.50 mod is paying $35,000 more than a company with a 0.80 mod on the same payroll.
That difference is not random. It reflects claims history, frequency, and overall risk management.
This is why managing claims proactively and building a safety culture is not just good practice. It directly impacts your bottom line.
If you have frequent claims or one large claim, your mod can increase. That directly increases your premium.
How to Lower It
- Report claims immediately
- Implement a return to work program
- Train supervisors to document incidents properly
- Address repeat injury patterns
Even small claims matter. A pattern of minor injuries can hurt your mod over time.
2. Payroll Increases
Workers comp premium is based on payroll.
If your payroll goes up, your premium goes up. That is not necessarily bad. Growth is good. But it can surprise owners who are hiring quickly.
Your final premium is adjusted after a payroll audit at the end of the policy term. If your payroll was higher than estimated, you will owe additional premium.
How to Control It
- Provide accurate payroll estimates at renewal
- Separate clerical and field payroll correctly
- Review employee job duties to ensure proper classification
Misclassifying employees can cost thousands.
3. Incorrect Classification Codes
Each employee is assigned a classification code based on job duties. Some codes are significantly more expensive than others.
For example, clerical office employees are much less expensive than roofing or framing crews.
If an employee is placed in the wrong class code, your premium can increase unnecessarily.
How to Lower It
- Review classification codes annually
- Make sure payroll is separated properly between roles
- Document job descriptions
Many businesses are paying too much simply because no one reviewed their codes.
4. Hiring Uninsured Subcontractors
In Michigan, if you hire subcontractors without their own workers comp coverage, their payroll can be included in your audit.
That means you could end up paying workers comp premium on money you already paid out.
This is common in construction and trades.
How to Protect Yourself
- Always collect certificates of insurance from subcontractors
- Verify coverage is active
- Keep documentation organized for audit
This alone can prevent major audit surprises.
5. Lapse in Coverage
If you cancel your policy or let it lapse, it can impact your ability to secure favorable pricing later.
Carriers view gaps in coverage as a red flag.
How to Avoid It
- Plan renewals early
- Do not shop coverage at the last minute
- Work with an advisor who monitors your expiration dates
Consistency matters in underwriting.
6. Industry Trends and Market Conditions
Even if your company has zero claims, you can still see increases due to broader industry loss trends.
For example:
- Construction injury severity trends
- Medical cost inflation
- State regulatory changes
While you cannot control the market, you can control how attractive your company looks to underwriters.
Practical Steps to Lower Your Workers Comp Costs
Here is what actually works.
1. Build a Safety Culture
Formal safety meetings, documented training, and accountability reduce claims frequency.
2. Implement a Return to Work Program
Getting injured employees back to modified duty quickly reduces claim costs significantly.
3. Review Your Experience Mod Annually
Many owners have never seen their mod worksheet. You should review it for accuracy.
4. Partner With the Right Carrier
Some carriers specialize in certain industries and reward well run operations.
5. Conduct a Pre Audit Review
Before your payroll audit, review subcontractor certificates and payroll records to avoid errors.
The Bottom Line
Workers comp pricing is not random. It is driven by data, documentation, and risk management.
If your premium increases, there is usually a reason. The good news is that most of the drivers are manageable with the right strategy.
If you are not sure what is impacting your workers comp rate, we can review your classification codes, experience mod, and payroll structure and show you exactly where the pressure points are.
Workers comp should support your growth, not punish it.
Cardinal Insurance Group Trusted Guidance. Personalized Service
Written by Linda M. Fisher, AAI, CIC, CPRIA, CPRM, LIC, LUTCF – Agency Founder & Owner