Can a Maryland Landlord Increase Your Security Deposit During the Lease?

The short answer

For most ordinary residential rentals in Maryland, a landlord may not impose a security deposit greater than one month's rent. The Maryland Attorney General says the one-month maximum applies to security deposits paid on or after October 1, 2024.

That means a landlord who already holds one full month of security generally cannot demand an additional amount that pushes the total security above one month's rent merely because the landlord is worried about possible future damage. A narrow statutory exception can allow up to two months' rent when specific utility-assistance conditions are all satisfied.

Maryland's current one-month rule

Maryland Real Property section 8-203 defines a security deposit broadly as money given to a landlord to protect against nonpayment of rent, breach of lease, or damage to the rental property, common areas, major appliances, or furnishings.

The current statute then says that, except for the specific utility-assistance exception, a landlord may not impose a security deposit above the equivalent of one month's rent per dwelling unit, regardless of the number of tenants. If the landlord violates that limit, the statute allows a tenant to seek up to three times the extra amount charged plus reasonable attorney's fees.

The rule applies to deposits paid on or after October 1, 2024

Maryland's Attorney General currently explains that the one-month maximum applies to security deposits paid on or after October 1, 2024. That effective-date detail matters for older tenancies because a deposit law can change while an existing lease is still in place.

For a tenancy where the deposit was first paid after October 1, 2024, start with the current one-month rule. For an older deposit, review the payment date, lease history, any later deposit payment, and the current official guidance before assuming the same result.

The narrow exception that can allow up to two months

Section 8-203 allows a security deposit of up to two months' rent only when all of the listed conditions are met: the tenant is eligible and has qualified for utility assistance through the Maryland Department of Human Services; the lease requires the tenant to pay utility services directly to the landlord; and the tenant and landlord agree in writing to the amount of the security deposit.

If those conditions do not fit the tenancy, the ordinary one-month maximum is the relevant starting point. A landlord should not treat the exception as a general right to increase every tenant's deposit.

Calling the payment something else does not automatically change what it is

Maryland's statutory definition focuses on what the money is for. If a payment is being required to protect the landlord against nonpayment, lease breach, or property damage, it can fall within the security-deposit definition even if the request uses another label.

That does not mean every landlord charge is a security deposit. Fees can be governed by different rules. The practical question is what the payment actually secures, whether it is refundable, what the lease says, and what legal authority supports the charge.

A fear of possible wall or property damage does not erase the cap

A security deposit can lawfully protect a landlord against qualifying damage, but the possibility of future damage is already one of the purposes covered by Maryland's security-deposit statute. The landlord's concern about a tenant's decorations, furniture, pets, or other potential damage does not by itself create a separate security-deposit ceiling.

If management wants to change a lease rule about nails, hooks, wall mounting, or other alterations, that is a separate lease-term question. A new rule should not be confused with an unlimited right to collect more security.

What to ask for before paying an additional deposit

Ask the landlord or property manager to identify in writing the amount of security already being held, the current monthly rent, the amount of the proposed additional payment, whether the payment will be refundable, and the legal or lease basis for requiring it.

Then compare the total proposed security with the current one-month statutory limit and check whether the utility-assistance exception actually applies. Keep the lease, deposit receipt, written demand, payment history, photographs or condition reports, and any communications about why the additional money is being requested.

Maryland also requires a receipt and regulates how deposits are held and returned

Maryland requires a landlord to provide a security-deposit receipt containing specific notices about inspection rights. The current statute also requires qualifying deposits to be held in designated financial accounts and provides rules for interest, deductions, inspections, and return after the tenancy ends.

Maryland's Attorney General and Department of Housing and Community Development both publish landlord-tenant resources. Those official sources are the right place to verify a disputed deposit demand before relying on community comments or a generic internet answer.

Mobile-home park residents have a separate Maryland rule

Maryland mobile-home park security deposits are governed by a different statute, Real Property section 8A-1001. That provision generally uses a different maximum and specifically says that after receiving the initial security deposit, a park owner may not increase it.

Because mobile-home park tenancies have a separate statutory regime, do not apply the ordinary section 8-203 article to a park tenancy without checking section 8A-1001 and any other applicable park rules.

Use Max Rental Tools to keep the deposit record organized

Max Rental Tools includes security-deposit receipts, itemization and refund records, move-in and move-out condition reports, and state rental-law starting points. Use those tools to document what was actually paid and why, while relying on the linked Maryland government sources for the controlling legal rule.