Check your experience mod and see where next year's is headed.

Type in the numbers from your experience rating worksheet. You'll see which claims are raising your mod, what it's likely to be next year, and how much room you have before it goes over 1.00. It's free, and the numbers you type never leave your browser.

Start with my worksheet

Your worksheet

You'll find everything below on your experience rating worksheet. Your insurance agent can send you a copy. Where each number is on the worksheet

Expected losses for each policy year

Use the total for each policy period. If your worksheet covers more than one state, add the states together.

Year 1 (oldest) Year 1 expected losses Year 1 expected primary losses

Year 2 Year 2 expected losses Year 2 expected primary losses

Year 3 (newest) Year 3 expected losses Year 3 expected primary losses

From the box at the bottom

Weighting value (W) Ballast value (B) Mod on your worksheet (optional)

Claims

Enter each claim on the worksheet with its actual incurred and actual primary amounts. You can also add claims from your current policy year, which isn't on the worksheet yet. Leave this empty if you had no claims.

Split point

Only needed for current-year claims. Find a claim on your worksheet where actual incurred is larger than actual primary. That primary amount is the split point. We fill this in for you when we can.

Your results

Your mod, by our math
Next year's mod, estimated
Lowest it could be with no claims

Claims raising your mod

Policy year	Actual incurred	Counts as primary	Adds to your mod

Next year

Target mod Current year's expected losses (optional)

Many general contractors ask for 1.00 or lower. Some accept up to 1.20.

Next year's estimate keeps this worksheet's weighting and ballast values. They change a little each year as your expected losses change, so treat it as close, not exact.

Want the whole worksheet checked?

This free check does the math. The full check looks for mistakes, which matter more, because one wrong claim or class code can cost you a bid.

Reads your worksheet PDF in your browser, so there's nothing to type and nothing is uploaded.
Compares every claim with your insurer's loss run and lists any that don't match, including medical-only claims that weren't reduced.
Checks payroll for each class code against your premium audits.
Gives you a list of questions to send your agent before the mod is final.

Covers every worksheet you get that year. Cancel anytime.

How the mod is calculated

Your mod compares the claims you actually had with the claims a business your size, in your trades, would be expected to have. A mod of 1.00 is average. Below 1.00 lowers your premium, and above 1.00 raises it.

It uses three policy years, ending about a year before the mod takes effect. Each claim is split in two. The first part, up to the split point, is primary and counts in full. The rest is excess, and only a fraction of it counts. That fraction is the weighting value, W. The ballast value, B, is added to both sides so one bad year can't swing a small company's mod too far.

That's why several small claims usually hurt more than one large one. A $15,000 claim counts in full, while most of a $90,000 claim is excess and barely counts. In most states, claims with medical costs only and no lost time are cut by 70% before they're counted.

Each year, the oldest year drops off and your current policy year takes its place. So the claims you have this year decide next year's mod.

Where to find these numbers

Labels differ a little between bureaus, but the worksheet usually has:

Expected losses and expected primary losses: columns often labeled "Expected Losses" and "Exp Prim Losses", with a total for each policy period.
Actual incurred and actual primary: "Act Inc Losses" and "Act Prim Losses", one line per claim. Small claims are sometimes added together on one line, and you can enter that line as one claim.
W and B: in the box at the bottom, often labeled "Weighting Value" and "Ballast Value".
The mod: also at the bottom, usually labeled "Experience Modification" or "Mod".

Questions

Does this work in my state?

It uses the formula in the NCCI experience rating plan, which covers most states. California, New York, Pennsylvania, New Jersey, Delaware, Massachusetts, Michigan, Minnesota, Indiana and North Carolina have their own rating bureaus. Some of them use different formulas, so results there may not match. North Dakota, Ohio, Washington and Wyoming run their own state funds.

My customer also asks for TRIR and DART. Can you work those out?

Yes. Use the TRIR and DART calculator with the totals from your OSHA 300A summaries.

Is this my official mod?

No. Only your rating bureau calculates your official mod. This is an estimate from the numbers you type in. If our number doesn't match your worksheet, check your typing first, then ask your agent to explain the difference.

Do you see my numbers?

No. The math runs in your browser, and this page doesn't send what you type anywhere. There are no cookies or tracking scripts. We count how many times a check is run, without any of the numbers. If you leave your email for the full check, we use it only to tell you when it opens, and then delete it. To have it deleted sooner, email modcheck@voussoirsoftware.com.

Why does next year's estimate use an average?

Your current policy year isn't on the worksheet yet, so we don't know its expected losses. We use the average of your three years. If your payroll has grown or shrunk a lot, enter your own figure under "Current year's expected losses".