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 26 - 50 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 1016 $17.92 2026-03-01 $19.42 2025-03-01 -8.37%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 1164 $6.2 2026-03-01 $6 2025-03-01 3.23%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 1165 $3.43 2026-03-01 $3.31 2025-03-01 3.5%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 1320 $1.8 2026-03-01 $1.78 2025-03-01 1.11%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 1322 $9.25 2026-03-01 $8.43 2025-03-01 8.86%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 1430 $6.69 2026-03-01 $6.42 2025-03-01 4.04%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 1438 $8.09 2026-03-01 $7.57 2025-03-01 6.43%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 1452 $3.11 2026-03-01 $3.25 2025-03-01 -4.5%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 1463 $11.29 2026-03-01 $11.6 2025-03-01 -2.75%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 1472 $4.44 2026-03-01 $4.11 2025-03-01 7.43%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 1624 $3.81 2026-03-01 $3.76 2025-03-01 1.31%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 1642 $5.37 2026-03-01 $4.53 2025-03-01 15.64%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 1654 $6.16 2026-03-01 $5.39 2025-03-01 12.5%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 1699 $3.64 2026-03-01 $3.63 2025-03-01 0.27%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 1701 $3.78 2026-03-01 $3.5 2025-03-01 7.41%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 1710 $4.04 2026-03-01 $3.9 2025-03-01 3.47%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 1747 $4.59 2026-03-01 $4.34 2025-03-01 5.45%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 1748 $6.57 2026-03-01 $6.75 2025-03-01 -2.74%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 1803 $6.99 2026-03-01 $7.68 2025-03-01 -9.87%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 1924 $4.44 2026-03-01 $3.7 2025-03-01 16.67%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 1925 $3.72 2026-03-01 $3.71 2025-03-01 0.27%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 2002 $4.62 2026-03-01 $4.42 2025-03-01 4.33%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 2003 $4.57 2026-03-01 $4.34 2025-03-01 5.03%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 2014 $5.99 2026-03-01 $5.81 2025-03-01 3.01%
MASSACHUSETTS BAY INSURANCE COMPANY 008822306 2016 $3.86 2026-03-01 $3.57 2025-03-01 7.51%