Sub-Metering and Master Meter Tenant Rights in Massachusetts

If you're renting in Massachusetts, understanding how your utilities are billed is important to avoid surprises and know your rights. Utility billing often uses either a master meter or sub-metering system. Each affects what you pay, and recent Massachusetts laws provide specific protections for renters in both cases. Here, we'll help you understand the differences, your rights, and steps you can take to resolve billing issues.

Understanding Utility Metering in Rentals

Landlords in Massachusetts are responsible for certain utility arrangements and disclosures. Two common methods are:

  • Master Meter: One central meter tracks utility (water, gas, or electricity) use for the whole building or multiple units. The landlord often pays the bill and may divide costs among tenants, but there are legal limits on how this can be done.
  • Sub-Metering: Each apartment or unit has its own meter. The landlord or utility company bills tenants based on their actual usage. Sub-metering is closely regulated in Massachusetts.

Key Tenant Protections and Legal Requirements

Massachusetts law sets strict rules to protect renters from unfair utility billing. You are entitled to:

  • Clear written disclosure in your lease about utility billing arrangements
  • Protection against being charged for utilities not used by your unit
  • Advance notice if the landlord changes the billing method
  • Limitations on charges for common area utilities or losses (like basement leaks)

These rules are covered under the Massachusetts General Laws, Chapter 186, Section 22, which outlines how landlords can bill tenants for utilities, especially for water and sub-metering.

Ad

Sub-Metering Rules and Required Disclosures

When a rental is sub-metered, the landlord must provide:

  • A written agreement (usually in your lease) informing you about the sub-meter and billing method
  • The right to examine your sub-meter readings and utility bills
  • A promise not to charge more than the rate charged by the public utility
  • Proof of the sub-meter’s accuracy (inspection certificates if requested)

Landlords cannot switch to sub-metering without giving tenants at least 30 days’ written notice, and, for current tenants, sub-metering can only be introduced at lease renewal or with mutual agreement.

If you’re unsure whether your apartment is sub-metered, ask your landlord for written disclosure and check your lease agreement. Always keep copies for your records.

Master Meters and Billing Practices

With master meters, landlords are usually responsible for paying the utility bill, but may include a utility charge in the rent. However, they cannot randomly divide the bill without a clear, legal calculation method. Importantly, they cannot charge you for utilities used by other units or common areas unless your lease states otherwise and is legally compliant.

If you suspect unfair practices, reach out to Massachusetts’s official Consumer Affairs and Business Regulation or your local housing authority for support.

How to Respond to Utility Billing Issues

If you think you’re being incorrectly billed for utilities:

  • Request documentation and copies of utility bills and your meter readings from your landlord
  • Check your lease for sub-metering or master meter provisions
  • Document all communication in writing
  • If you cannot resolve it, you can file a complaint or seek mediation

Formal complaints about unfair charges can be submitted to the Massachusetts Department of Public Utilities as well as Small Claims Court if money is owed. Major disputes concerning tenancy can go through the Massachusetts Housing Court.

Official Forms and When to Use Them

  • Massachusetts Small Claims Statement of Claim and Notice (Form 1): Use this to file a claim related to disputed utility charges under $7,000. File at your district court or online through the official Mass.gov small claims service. For example, if you’re overcharged for utilities that should be the landlord’s responsibility, this form starts the legal process.
  • Housing Complaint Forms: To report housing code violations involving shared utilities, contact your local Board of Health. Use their complaint form to start an inspection or investigation.

FAQ

  1. Can my landlord charge me for common area utilities?
    Generally, landlords cannot bill you for utilities used in common areas (like hallways or laundry rooms) unless clearly stated in your lease with legally compliant calculations.
  2. Is my landlord required to notify me before installing a sub-meter?
    Yes—Massachusetts law requires at least a 30-day written notice, and for existing tenants, only at lease renewal or with your agreement.
  3. What can I do if I think my sub-meter is inaccurate?
    You have the right to request an inspection certificate or proof of its accuracy from your landlord. You may also file a complaint with your local Board of Health or the Department of Public Utilities.
  4. Who enforces utility billing laws in Massachusetts?
    The Massachusetts Department of Public Utilities and the Massachusetts Housing Court handle disputes related to utility metering and billing.
  5. Are there protections for utilities if I'm on a master meter?
    Yes. Your landlord must follow legal procedures and cannot divide charges unfairly or bill you for another tenant’s use.

Summary and Key Takeaways

  • Know your lease terms on utilities—sub-meter and master meter rules differ.
  • Massachusetts law protects against unfair utility billing—seek written disclosure.
  • If in doubt or dispute, contact the Department of Public Utilities or Housing Court for help.

Understanding your billing system helps you manage costs and assert your rights as a Massachusetts renter.

Need Help? Resources for Renters


  1. Massachusetts General Laws, Chapter 186, Section 22 – Utilities in Leased Apartments
  2. Massachusetts Department of Public Utilities
  3. Massachusetts Housing Court
  4. Filing a Small Claim in Massachusetts
  5. Local Boards of Health Directory (Mass.gov)
Bob Jones
Bob Jones

Editor & Researcher, Renter Rights USA

Bob writes and reviews tenant law content for various regions. They’re passionate about housing justice and simplifying legal protections for tenants everywhere.