Overtime Pay and Workers’ Comp: How Auditors Handle the Calculation

Running a small business is like being the conductor of a symphony—everyone needs to play in harmony for things to go smoothly. But when it comes to payroll, taxes, and workers’ compensation, even the smallest off-key note can cause a ripple effect. One of the most common and misunderstood areas for business owners is how overtime pay is treated during a workers’ compensation audit. Let’s break it down in simple terms and explain what you need to know.

What’s the Big Deal with Overtime?

Overtime pay might seem like just another line item on your payroll report, but it plays a special role in how your workers’ compensation premiums are calculated. Think of your workers’ comp insurance like a car insurance policy for your employees. Just as your car insurance rate depends on how much you drive, your workers’ comp cost depends on how much your employees earn—and specifically, how you report those earnings.

Here’s where things can get tricky. In most states, the wages used to calculate workers’ comp premiums are based on the first $128,000 of each employee’s earnings (the threshold varies slightly by state). But not all pay is treated the same. This is where overtime exclusion rules come into play.

Put simply, if an employee earns overtime, you may be allowed to exclude that overtime from the base wages used in the workers’ comp calculation. But it’s not automatic. You have to know the rules and document it properly.

Why Does This Matter to Auditors?

Auditors are detail-oriented. They’re like the accountants of the insurance world, making sure you’ve reported the right numbers in the right way. When they review your payroll data, they’re looking to verify that you’ve applied the correct exclusion rules for overtime. If they find you’ve included overtime pay in your base wages, and it wasn’t supposed to be included, they may adjust your premium upward. And that can cost you more money than you anticipated.

Here’s a real-life example: Suppose one of your employees earns $1,000 in base pay and $500 in overtime during a month. If your state allows you to exclude the $500 in overtime, that means you only pay workers’ comp on the $1,000. If you mistakenly include the $500, you’re paying for coverage you didn’t need to, and the auditor will catch that.

How Overtime Exclusion Rules Work

Not every type of overtime is eligible for exclusion. Generally, you can exclude overtime if it meets two key criteria:

Here’s another rule of thumb: If you have a written policy or agreement that your employees work overtime regularly (like a salaried position that expects 50+ hours a week), then that overtime is likely not eligible for exclusion. The idea is to prevent companies from trying to game the system by calling standard hours “overtime” just to reduce their premium.

What Can Go Wrong?

Let’s say you’re a small business owner who’s doing your own payroll and not using a dedicated HR system. You might not realize that including overtime in your base wages can inflate your premium. Or maybe you think the exclusion rule applies automatically, but it doesn’t unless you document it properly.

Another common mistake is misclassifying employees. If you have someone who’s technically a salaried, exempt employee, you can’t claim overtime for them—because they’re not supposed to earn overtime in the first place. But if you’re paying them hourly and they work extra hours, you can claim the exclusion, as long as it’s documented and meets the legal criteria.

How to Prepare for an Audit

So, what can you do to avoid a costly surprise during an audit? Here are a few tips:

  1. Keep good records. Know which employees are eligible for overtime and which are not. Make sure you’re tracking overtime hours separately from base hours.
  2. Review your state’s rules. Each state has its own nuances about how overtime is handled in workers’ comp. Check your state insurance department’s website for specifics.
  3. Document your exclusions. If you plan to exclude overtime from your workers’ comp premium calculation, keep a clear, written record. This could be a policy, a spreadsheet, or even a payroll note.
  4. Consult a professional. If you’re not sure how your payroll and workers’ comp are connected, talk to a tax or HR advisor. It’s better to ask questions now than to pay the price later.

What If You Get It Wrong?

Let’s say the auditor comes in and finds that you included overtime in your base wages when you shouldn’t have. What happens then? You’ll likely face an adjustment in your premium, which means you’ll owe more money. In some cases, if the mistake was repeated over multiple years, the adjustment could be retroactive and cover several years of premiums.

It’s also possible that the insurance carrier might charge you an additional fee for the audit or the recalculated premium. These fees can add up quickly, especially if you’re a small business with a tight budget.

The good news is, most errors are correctable. The key is to be proactive, keep your records in order, and understand the rules before they’re applied to your account.

Final Thoughts: Overtime Isn’t Just for Paychecks

For small business owners, managing payroll and insurance is already a juggling act. Overtime exclusion rules may seem like a minor detail, but they can have a big impact on your bottom line. The next time you process a paycheck, take a moment to think about how that overtime pay might affect your workers’ comp costs. It’s not just about what you pay your employees—it’s also about what you pay to protect them.

And remember, when it comes to audits, preparation is the best insurance of all.

“Don’t let a small oversight become a big expense. Understand how overtime affects your workers’ comp and get ahead of the audit process.”

Stay informed, stay compliant, and keep your business on track.