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Can my landlord raise my rent anytime?

On Behalf of | Nov 13, 2025 | Commercial Real Estate |

Your rent is likely the biggest bill you pay, and every dollar added to that sum comes directly out of your business’s profit margin. A sudden, unscheduled rent increase is often an immediate concern to the long-term viability of the enterprise. Can a landlord truly raise this massive expense on a whim?

The lease document controls everything

Unlike residential tenants, commercial renters in Massachusetts receive very few statutory protections. The law primarily sees your lease as a simple contract between two businesses. This means the terms and conditions written in that document determine the landlord’s right to increase your rent, not external laws or market shifts.

Your lease is the definitive legal shield against unwarranted increases. If the lease does not clearly allow the landlord to raise the rent during the fixed term, they generally cannot do it. Landlords must follow the rules they agreed to when they signed the document.

When rent adjustments are allowed

The three primary ways a commercial landlord can legally raise your rent are:

  • A specific rent escalation clause: This section sets out a fixed schedule for increases, such as “Rent shall increase by 3% on each anniversary of the Commencement Date.”
  • A tax or operating expense pass-through clause: These clauses allow the landlord to charge you for your share of increased property taxes or Common Area Maintenance (CAM) costs. This is not a base rent increase, but a rise in your total occupancy cost.
  • A rent review clause: This clause typically applies at a renewal option date and requires the rent to be adjusted to “Fair Market Rent.”

A landlord’s power to change your rent during a fixed lease term is strictly limited to clauses you previously accepted. If your lease contains no clause permitting a mid-term increase, the rate stays fixed until the term ends.

If the landlord claims a right to increase the rent, you must ask them to point to the exact section and sentence in your lease that grants them that authority.

Proper notice is critical

A landlord must give you proper written notice for any change in your tenancy, including a rent increase. If you have a fixed-term lease, the landlord must usually wait until the end of that term to propose a new, higher rate, unless a specific clause such as those listed above is triggered. 

A “tenancy-at-will” (often a month-to-month arrangement) requires the landlord to provide a written notice, generally 30 days or one full rental period, before the increase takes effect. A landlord’s failure to give timely and correct notice may legally invalidate the rent increase, at least temporarily.

Your lease may specify a longer notice period than the state minimum. Always check your agreement first.

Legal options for tenants in dispute

You have specific legal grounds to challenge a rent increase notice that does not align with your lease’s terms:

  • Audit the figures: You can request the landlord’s documentation, such as property tax bills or CPI calculations, to verify the increase.
  • Check the notice period: Landlords must follow the lease’s required written notice period for any change. Failure to provide proper notice often invalidates the immediate increase.
  • Assert breach of contract: If the landlord violates the lease’s clear terms by demanding an unauthorized increase, they may be in breach of the contract.
  • Use good faith and fair dealing: Massachusetts contract law includes an implied covenant that requires both parties to act reasonably and not intentionally deny the other party the benefit of the contract.

Landlords may view simply paying the disputed amount, even under protest, as accepting the new rate. Taking legal action is sometimes necessary to resolve real estate disputes.

The final step

Real estate disputes between commercial landlords and tenants often hinge on small details within the lease language. You need a professional interpretation of that language to protect your rights and your business finances. A qualified real estate attorney reviews your lease, explains your specific rights and develops a strategy to defend your business from an unlawful rent increase.