Workers' Compensation in Massachusetts: What Every Employer Must Know

Business Insurance May 20, 2026 5 min read
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Valorin Insurance Team

Insurance Specialists

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In Massachusetts, Workers' Compensation insurance is not optional — it is a legal requirement for virtually every employer. Understanding your obligations and the protections this coverage provides is essential for any business owner operating in the state.

What Is Workers' Compensation?

Workers' Compensation is a state-mandated insurance program that provides benefits to employees who suffer work-related injuries or illnesses. It covers medical treatment, rehabilitation, and a portion of lost wages. In return, employees generally give up the right to sue their employer for negligence.

Who Must Carry It in Massachusetts?

Under Massachusetts General Law Chapter 152, all employers with one or more employees — including part-time and seasonal workers — must carry Workers' Compensation insurance. This applies to sole proprietors who have employees. Sole proprietors and partners without employees are exempt but may choose to cover themselves.

What Does It Cover?

  • Medical expenses — doctor visits, hospital stays, surgery, physical therapy
  • Lost wages — typically 60% of the employee's average weekly wage
  • Permanent disability benefits — for injuries resulting in long-term impairment
  • Death benefits — for surviving dependents in fatal workplace accidents

What Happens If You Don't Have It?

Operating without Workers' Compensation in Massachusetts is a serious violation. Penalties include fines of up to $1,500 per week for non-compliance, a stop-work order that shuts down your business, and personal liability for injured employees' medical costs and lost wages.

How Are Premiums Calculated?

Workers' Compensation premiums are based on your payroll size, the nature of your business, and your claims history (experience modifier). Higher-risk industries such as construction pay more than office-based businesses. Maintaining a safe workplace and a low claims history can reduce your premium over time.

Get Compliant Today

Don't put your business at risk. Valorin Insurance works with leading Workers' Compensation carriers to find the most competitive rates for your industry. Contact us today to get covered and stay compliant.