Security Deposits

Can a landlord increase the deposit after move-in?

Maine rental guidance and tenant-landlord operational information.
Published May 11, 2026 State-specific rental guidance Update This Question
Reviewed by Tenants & Landlords Editorial Team

This rental guidance was reviewed by the Tenants & Landlords Intelligence Team, specializing in lease agreements, notices, rent disputes, deposits, evictions, and tenant-landlord operational procedures.

Asked 22 days ago · Maine

Can a Landlord Increase the Security Deposit After Move-In in Maine?

In Maine, tenants and landlords have clearly defined rights and responsibilities regarding security deposits under the Maine Landlord and Tenant Laws. Understanding whether a landlord can increase a security deposit after the tenant has moved in is important for both parties to avoid disputes and ensure compliance with local regulations.


Maine Law on Security Deposits

Under Maine law, security deposits are governed primarily by Title 14, §6022 of the Maine Revised Statutes. The law covers the maximum amount a landlord can require as a deposit, how it must be handled, and the circumstances surrounding its return or withholding.

Key points about security deposits in Maine include:

  • Maximum Amount Allowed: A landlord may require a security deposit that does not exceed the equivalent of one month’s rent.
  • Written Receipt Requirement: Upon receiving a security deposit, the landlord must provide the tenant with a written receipt specifying the amount received, the condition of the premises, and terms of the deposit.
  • Interest Payment: Landlords must pay interest on security deposits held for longer than one year, at a rate set annually by the state treasurer.
  • Return Timeline: The landlord must return the security deposit, minus any lawful deductions, within 30 days after the tenant moves out.

Increasing the Security Deposit After Move-In

Maine law does not explicitly prohibit a landlord from requesting an increase in the security deposit after move-in; however, this practice is uncommon and subject to important conditions:

  1. Mutual Agreement is Required
- Since the security deposit is part of the lease terms, any change—including increasing the deposit—after the lease has commenced requires the tenant’s consent. - A landlord cannot unilaterally increase the deposit amount without explicitly obtaining the tenant’s written agreement to modify the lease or rental terms.
  1. No Automatic Right to Increase
- The initial agreement sets the security deposit amount. Unless the lease specifically allows for increases in the deposit (which is rare and should be clearly stated), the landlord has no automatic right to demand additional funds. - An increase may be part of a lease renewal negotiation or a new lease agreement where terms are reset.
  1. Must Comply with Maximum Deposit Limits
- Any increase must still comply with Maine’s legal maximum. The total security deposit—original plus any increase—cannot exceed the equivalent of one month’s rent. - If the tenant’s rent increases (for example, on renewal), the landlord may request an increase to the deposit, but again, only by mutual agreement.
  1. Written Documentation is Crucial
- If an increase is agreed upon, the change should be documented in writing, signed by both landlord and tenant. - This protects both parties and clarifies the new terms, preventing future disputes.

Practical Considerations for Tenants and Landlords

  • For Tenants:
- Review your lease carefully to see if it addresses security deposit increases. - Do not provide additional deposit funds unless you fully understand the reasons and your agreement is in writing. - If asked for an increased deposit, ask for documentation explaining why and how the amount was calculated. - Understand that any new or increased security deposit must still be subject to Maine’s maximum limit.
  • For Landlords:
- Before requesting an increase, consider whether such a demand is justified and advisable. - Remember that you may only charge one month’s rent as a security deposit in total. - Ensure that any modifications to the security deposit amount are clearly communicated and formally agreed upon by the tenant. - Keep thorough records of all receipts and agreements regarding security deposits.

Summary

  • In Maine, a landlord may request an increase in the security deposit after move-in only with the tenant’s agreement.
  • The total deposit amount cannot exceed one month’s rent, regardless of increases.
  • Any such increase must be mutually agreed upon in writing to be valid.
  • Absent tenant consent or written lease provisions allowing increases, landlords do not have the right to unilaterally raise the security deposit after move-in.
Understanding these guidelines helps tenants protect their financial interests and landlords maintain compliance with Maine’s housing laws. If either party has concerns about security deposit increases during a tenancy, consulting a local tenant or landlord advisory agency may provide additional support and clarification.

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