US security deposit rules: why they change at every state line

Security deposits are one of the most common sources of landlord-tenant disputes in the United States, and one of the easiest places to get caught out, because almost every rule depends on the state (and sometimes the city).

Maximum amount

Some states cap the deposit at one or two months' rent; others set no statutory cap at all. Charging more than the local maximum, where one exists, is a violation regardless of what the lease says.

Return deadlines and itemisation

After a tenant moves out, the landlord has a set number of days, commonly somewhere between two and four weeks but it varies, to return the deposit or provide an itemised statement of any deductions. Miss the deadline or skip the itemisation and many states impose penalties, sometimes multiples of the deposit.

Interest and separate accounts

A number of states and cities require deposits to be held in a separate account and some require interest to be paid to the tenant. Whether this applies, and at what rate, is entirely local.

Why this is a portfolio risk

A manager operating across more than one state is effectively running several different deposit regimes at once. The safe approach is to track, per property, the local cap, the return clock and any interest or separate-account rule, rather than apply one policy everywhere.

Where software helps

Cuvanti tracks deposits per tenancy with the deadlines and deductions recorded, so the return clock is managed and the itemised statement is ready rather than late.

This is general information, not legal advice. Deposit rules vary by state and city and change; confirm the current rules for each property with a qualified adviser.