Michigan is not an NCCI state: the Compensation Advisory Organization of Michigan (CAOM) collects the data and publishes advisory pure premiums by class code, and Michigan’s open-competition law lets carriers price aggressively around them. New rating values took effect January 1, 2026.

The current rate environment in Michigan

CAOM published new advisory pure premiums and assigned-risk rating values effective January 1, 2026. Michigan’s open-competition market means published values are a reference point — carriers deviate substantially in both directions, which makes the comparison the whole ballgame.

Where to find official Michigan rate data

Michigan is transparent about its data: CAOM offers a public class code lookup and posts the statewide pure premium documents and assigned-risk rates at caom.com (current values effective January 1, 2026). Pure premiums cover expected losses only — carrier expense loadings, deviations, experience mods, and credits produce your actual price.

What determines your Michigan premium

• Class codes — every job type carries its own rate; misclassification is the most common cause of overpayment
• Payroll — premium is calculated per $100 of payroll, by class
• Experience mod — your claims history versus similar businesses scales the whole premium up or down
• Carrier pricing — Michigan is an open-competition state — carriers deviate freely from CAOM advisory values, so quote spreads run wider than in most states
• Credits and programs — safety programs, dividend plans, and pay-as-you-go options move the net cost

How to get the best rate in Michigan

The rate tables are only the starting point: the carrier you land with, the accuracy of your class codes, and how your payroll is reported decide what you actually pay. We quote Michigan businesses across a dozen A-rated markets and show you the comparison — including pay-as-you-go billing that matches premium to actual payroll. See our Michigan workers’ comp guide and Michigan forms & resources for the rest of the picture.

Michigan rate FAQs

Who sets workers’ comp rates in Michigan?

No one sets a single rate — CAOM publishes advisory pure premiums by class code, and Michigan’s open-competition system lets each carrier price around them with its own deviations and credits.

Where can I look up my Michigan class code?

CAOM offers a free public class code lookup at caom.com, plus the published pure premium and assigned-risk rate documents effective January 1, 2026.

Why do Michigan workers’ comp quotes vary so much?

Because carriers aren’t bound to advisory values, Michigan quote spreads are wider than in most states — the same shop can see quotes 30-50% apart. Comparing multiple carriers matters more here, not less.