Security Deposit Rules, State by State — With the Math Done For You

How much can your landlord charge? When must the money come back? Does it earn interest while they hold it? Pick your state and get real answers with the statute behind every number.

50 states + DCUpdated October 2026Free · no signupRuns in your browser

Every figure cites the state statute. Updated October 5, 2026.

🧮 Security Deposit Interest Calculator

Runs entirely in your browser — nothing you type is sent anywhere. Rules shown are state law as of October 2026; see your state's page for sources.

How it works

Three inputs, every number your state controls

No signup, no email, no upload. The tool is a thin, honest layer on top of the state statutes — and each result links the page that sources it.

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Pick your state

The calculator loads your state's cap, return deadline, and interest rule — including the cities that add their own.

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Enter rent & dates

Monthly rent, your deposit, and your move-in/move-out dates. Nothing leaves your browser.

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Get your numbers

Cap check, a deadline you can circle on a calendar, and the interest your state owes you — with the statute behind each figure.

Landlord handing apartment keys to a tenant on move-in day

Move-in day is where every deposit story starts — and where the documentation should start with it.

Browse by state

Security deposit laws in all 50 states (+ DC)

Each guide covers the deposit cap, the return deadline, interest requirements, bad-faith penalties, and the statute citation — written in plain English and dated.

Guides

Get it back, keep it safe

The practical side of deposit law: documentation at move-in, the demand letter at move-out, and the clauses that decide the outcome before you ever sign.

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How to Get Your Security Deposit Back (8 Steps)

A step-by-step playbook for getting your full security deposit back: documentation, move-out cleaning, statuto…

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Security Deposit Demand Letter (Free Template)

A free, copy-ready security deposit demand letter template, with the statutory citations and deadlines that ma…

Read the guide →
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Move-In / Move-Out Checklist (Interactive)

An interactive room-by-room checklist for documenting a rental at move-in and move-out — the documentation tha…

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What Is a Security Deposit? (Plain-English Guide)

What a security deposit is, how it differs from last month's rent and fees, who holds the money, when it earns…

Read the guide →
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Security Deposit Assistance: Where to Get Help Paying

Free and legitimate places to find security deposit assistance: 211, HUD resources, state and city programs, l…

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5 Lease Clauses to Check Before You Sign

The five lease clauses that decide how your deposit story ends — deposit terms, return deadlines, repair respo…

Read the guide →
Common questions

Deposit questions, answered straight

Does my landlord owe me interest on my security deposit?
It depends on your state. A group of states — including Ohio (5%), Massachusetts (5%), Florida (5% in the common case), Minnesota (1% after a year), New Jersey, and Connecticut — requires interest, and a few big cities (Chicago, San Francisco, New York City for large buildings) add their own rules even where the state doesn't. Select your state in the calculator above for the exact rule.
How long does my landlord have to return the deposit?
Every state sets a deadline between 14 and 60 days after you move out, with 21–30 days the most common. Many states also require an itemized written statement of any deductions. Pick your state above and the calculator shows your deadline as an actual calendar date.
What is the most a landlord can charge for a deposit?
About half of states cap deposits — usually at one to two months' rent (California: one month; Arizona: one and a half; Nevada: three). The rest let the lease set the amount. Your state page lists the cap and its exceptions.
Can my landlord keep my deposit for normal wear and tear?
No. Every state allows charges for damage beyond normal wear and tear, and none allows charging for wear itself — faded paint, worn walkway carpet, small nail holes. Deductions usually require an itemized written statement; your move-out photos are how you check every line.
My deposit is late. What do I do?
Once your state's deadline passes without a refund or itemized statement, you are in wrongful-withholding territory, where several states add double or triple damages. Send a demand letter citing the deadline and statute (our free template takes ten minutes), then file in small claims court if it's ignored.
Is this site legal advice?
No — DepositLens is legal information: we summarize state statutes with citations so you can verify everything yourself. For a live dispute, your state housing authority or local legal aid is the right next step.