There is a quiet little racket that shows up far too often in Massachusetts rental housing: the tenant signs a lease saying the tenant pays for electricity, opens an account with the utility company, pays the bill every month, and only later discovers that the meter was never measuring just the tenant’s apartment.
Maybe the hallway lights are on the tenant’s meter. Maybe the basement laundry machines are wired to the tenant’s panel. Maybe another apartment, a common area, an exterior light, a boiler, a sump pump, a garage, or some mysterious landlord-controlled space is quietly feeding off the tenant’s electric account.
That is cross-metering.
And in Massachusetts residential housing, cross-metering is not some harmless technical defect. It can mean that the landlord has shifted utility costs onto the tenant that the landlord was legally required to pay.
The Basic Rule: A Tenant Cannot Be Made to Pay for Electricity That Is Not Exclusively Theirs
Massachusetts law does not permit a landlord to simply tell a residential tenant, “You pay electric,” unless the legal requirements are satisfied.
Under the Massachusetts State Sanitary Code, the owner is generally responsible for electricity and gas used in a dwelling unit unless two things are true: first, the utility is metered through a meter that serves only that tenant’s dwelling unit or another area under that tenant’s exclusive use; and second, a written rental agreement provides that the tenant is responsible for payment.
That “serves only” language is where cross-metering becomes fatal.
If the tenant’s meter also serves a common hallway, another apartment, a basement appliance, landlord equipment, common-area lighting, exterior lights, or any other area not under the tenant’s exclusive control, then the tenant is not being billed only for the tenant’s own electricity. The tenant is being used as the landlord’s collection device.
The landlord may call it an oversight. The landlord may call it old wiring. The landlord may claim the amount is “minimal.” The landlord may insist the tenant is being dramatic. None of that changes the basic problem: a tenant cannot be required to pay for electricity that is not separately and properly metered to the tenant’s own unit or exclusive-use area.
Cross-Metering Is Often Hidden Until the Bills Stop Making Sense
Cross-metering is particularly insidious because the tenant may have no idea it is happening.
The electric bill arrives in the tenant’s name. The utility company accepts payment. The lease says the tenant pays electric. Everything appears normal from the outside.
But inside the walls, the wiring may tell a different story.
Tenants often begin to suspect cross-metering when the bill is unusually high, when usage continues while they are away, when breakers in their panel shut off lights or outlets outside their apartment, or when common-area appliances mysteriously depend on their electrical service. Sometimes the issue appears when a tenant flips breakers one by one and discovers that the hallway, basement, garage, exterior lights, or another area loses power.
That is not a minor inconvenience. It is evidence that the tenant may have been paying for electricity that the landlord had no right to pass on.
“But the Lease Says the Tenant Pays Electric”
This is the usual landlord response, and it misses the point.
A lease clause cannot magically convert an unlawful metering arrangement into a lawful one. A written agreement requiring the tenant to pay electric is only part of the legal requirement. The meter must also serve only the tenant’s dwelling unit or an area under that tenant’s exclusive use.
In plain English: the landlord does not get to write “tenant pays electric” in a lease and then wire the common hallway, basement laundry, exterior lighting, or another unit into that tenant’s meter.
If the meter is shared, crossed, or serving non-exclusive areas, the landlord may be responsible for the electric bill regardless of what the lease says.
This is where many landlords get themselves into trouble. They think the lease controls everything. It does not. Massachusetts housing law imposes minimum obligations that cannot be evaded by sloppy lease drafting, wishful thinking, or the landlord’s ignorance of the sanitary code.
Electric Submetering Is Also Generally Prohibited in Massachusetts
Another related problem is electric submetering.
In Massachusetts, residential electric submetering is generally prohibited because it amounts to the resale of electricity. A landlord cannot ordinarily run a single utility meter for the building and then use private submeters to bill tenants separately for electricity. For a tenant to be properly responsible for residential electricity, the meter must be installed, maintained, and read by the utility company, and the rental agreement must properly place that obligation on the tenant.
This matters because some landlords try to dress up an unlawful utility setup with homemade math. They divide the bill by the number of units. They estimate usage. They install private devices. They charge percentages. They tell one tenant to reimburse another tenant. They claim they are being “fair.”
But Massachusetts utility law is not based on vibes, guesses, or landlord arithmetic. If the arrangement does not comply with the law, the landlord’s private billing system does not save it.
Common Examples of Cross-Metering
Cross-metering can take many forms, including:
A tenant’s electric meter powering common hallway lights.
A tenant’s meter feeding basement lights, storage areas, laundry machines, or landlord-controlled outlets.
A first-floor tenant paying for exterior lighting, porch lights, security lights, or garage electricity.
One apartment’s meter powering part of another apartment.
A tenant’s panel controlling outlets or appliances outside the tenant’s unit.
A meter serving both the apartment and a common boiler, pump, fan, or other building system.
A landlord charging tenants based on estimates from a single building meter.
The common thread is simple: the tenant is paying for electricity that is not exclusively the tenant’s.
Why This Can Become Expensive for the Landlord
Landlords often complain that Massachusetts landlord-tenant law is unforgiving. But cross-metering cases usually do not arise because the law is mysterious. They arise because the landlord rented a unit without making sure the utility setup was lawful.
That is the landlord’s problem.
If the landlord wants the tenant to pay electricity, the landlord must ensure that the electricity is separately metered to the tenant’s unit or exclusive-use area and that the lease properly requires the tenant to pay. If the landlord does not do that, the landlord may face reimbursement claims, sanitary code enforcement, utility billing corrections, defenses or counterclaims in housing court, and potentially serious exposure depending on the facts.
The landlord may say the building is old. The landlord may say the wiring predates their ownership. The landlord may say they did not know. But ignorance does not turn a crossed meter into a lawful meter.
A landlord who profits from a tenant paying the landlord’s utility burden should not be surprised when the bill eventually comes due.
What Tenants Should Look For
A tenant who suspects cross-metering should start documenting the issue.
Unusually high electric bills may be a clue, but high bills alone do not prove cross-metering. More concrete evidence may include photographs of the breaker panel, videos showing which lights or appliances turn off when breakers are switched, written communications with the landlord, utility usage records, and inspection reports.
Tenants may also contact the local board of health or inspectional services department. If an authorized agency determines that the property violates the sanitary code because of improper metering, that finding can become important evidence. The Department of Public Utilities also has rules addressing situations where utility service was improperly billed to a tenant because of metering violations.
Tenants should not tamper with wiring or place themselves in danger. Electrical systems are not a DIY battleground. But tenants can document what they observe, request an inspection, and preserve their bills and communications.
The Landlord’s Legal Remedy Is Compliance, Not Excuses
The cure for cross-metering is not a landlord lecture about how hard it is to own property in Massachusetts. The cure is lawful metering.
If the landlord wants tenants to pay for their own electricity, the landlord must create a lawful setup: proper utility meters serving only the appropriate dwelling unit or exclusive-use area, with a written rental agreement requiring tenant payment. If the landlord does not want to do that, then the landlord may need to include electricity in the rent and pay the electric bill as the owner.
What the landlord cannot do is quietly offload common-area or other-unit electricity onto an unsuspecting tenant.
That is not entrepreneurship. That is not “how it has always been done.” That is not a clever cost-saving measure.
It is unlawful cross-metering.
Conclusion
Massachusetts law is not unfair because it refuses to let landlords make tenants pay for electricity that is not theirs. That is not tenant favoritism. That is basic consumer protection.
A tenant who pays the electric bill should be paying for the tenant’s own electric usage — not the hallway, not the basement, not the landlord’s equipment, not another apartment, and not the building’s common areas.
When a landlord rents residential property in Massachusetts, the burden is on the landlord to know the rules before shifting utility costs to the tenant. If the landlord fails to do that, the problem is not the tenant. The problem is not the law.
The problem is the meter.