Are you paying the lowest premium possible for your workers' compensation insurance? We can help you find out by giving you the lowest rates filed with the Department by insurance companies for your class code.

These rates form the basis for calculating your final premium and are a starting point for shopping for workers' compensation insurance. With few exceptions, the rates shown are per one hundred dollars of payroll.

Your final premium cost may depend on other factors besides these base premium rates, such as whether the insurance company will allow you additional premium credits for having a safety program or using managed care programs.

In addition, remember that there are other things to consider when shopping for insurance coverage besides cost, such as the quality of service you will likely receive from your insurance company.

Class codes can be obtained from the NCCI at 800-622-4123.  For general information regarding class codes, you may contact a Workers’ Compensation Specialist in the Property and Casualty Section at 800-394-0964.

Displaying 126 - 150 of 553

Company name Sort descending NAIC Class Code Current Rate Current Effective Date Previous Rate Previous Effective Date % of Rate change
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3064 $4.28 2026-03-01 $4.3 2025-03-01 -0.47%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3076 $3.74 2026-03-01 $3.7 2025-03-01 1.07%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3081 $5.58 2026-03-01 $5.15 2025-03-01 7.71%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3082 $6.02 2026-03-01 $6.19 2025-03-01 -2.82%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3085 $6.65 2026-03-01 $6.19 2025-03-01 6.92%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3110 $4.85 2026-03-01 $4.91 2025-03-01 -1.24%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3111 $2.95 2026-03-01 $2.67 2025-03-01 9.49%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3113 $2.04 2026-03-01 $2.08 2025-03-01 -1.96%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3114 $3.2 2026-03-01 $3.26 2025-03-01 -1.87%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3118 $2.54 2026-03-01 $2.43 2025-03-01 4.33%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3119 $1.8 2026-03-01 $1.55 2025-03-01 13.89%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3122 $3.01 2026-03-01 $2.45 2025-03-01 18.6%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3126 $2.28 2026-03-01 $2.21 2025-03-01 3.07%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3131 $1.83 2026-03-01 $1.84 2025-03-01 -0.55%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3132 $5.14 2026-03-01 $6 2025-03-01 -16.73%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3145 $2.91 2026-03-01 $2.8 2025-03-01 3.78%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3146 $3.04 2026-03-01 $2.75 2025-03-01 9.54%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3169 $3.15 2026-03-01 $2.96 2025-03-01 6.03%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3179 $2.39 2026-03-01 $2.29 2025-03-01 4.18%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3180 $3.86 2026-03-01 $3.95 2025-03-01 -2.33%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3188 $2.92 2026-03-01 $2.85 2025-03-01 2.4%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3220 $2.23 2026-03-01 $2.35 2025-03-01 -5.38%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3224 $4.22 2026-03-01 $4.19 2025-03-01 0.71%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3227 $3.19 2026-03-01 $3.25 2025-03-01 -1.88%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 3241 $4.96 2026-03-01 $4.22 2025-03-01 14.92%