LANDLORD-TENANT CALCULATORS

Security Deposit Interest Calculator — United States

Calculate the interest your landlord owes on your security deposit in states that require it, including New York, Massachusetts, and Connecticut.

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Disclaimer: Interest rates shown are estimates. Actual rates may change. Check your landlord's account statements. Penalty provisions vary by state. Not legal advice.

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Frequently Asked Questions

Which US states require landlords to pay interest on security deposits?
States requiring deposit interest include: Massachusetts (5% or actual rate), New York (actual bank rate for 6+ unit buildings), Connecticut (savings bank rate), New Jersey (actual rate earned), Maryland (actual rate), and Illinois (for buildings with 25+ units). Some cities have their own rules — San Francisco requires interest even where California state law does not. Most other states do not require interest.
What are the penalties for not returning a security deposit?
Penalties vary by state but are significant. Massachusetts: up to 3× the deposit amount plus attorney fees. California: up to 2× the wrongfully withheld amount. Texas: up to 3× plus attorney fees. New York: court may award up to 2× the deposit. Most states also allow the tenant to recover attorney fees in successful deposit dispute cases. The landlord typically must prove deductions are justified.
How long does a landlord have to return a security deposit?
Return deadlines: California — 21 days; Texas — 30 days; Florida — 15 days (no deductions) or 30 days (with deductions); New York — 14 days; Massachusetts — 30 days; Illinois — 30–45 days; Virginia — 45 days; New Jersey — 30 days. Landlords who miss the deadline typically forfeit the right to make deductions and may owe the tenant the full deposit plus penalties.

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