100% Free US Rental Utility

Get Your Security Deposit Back. With Interest.

Did your landlord miss the return deadline or fail to pay interest? Calculate what you're owed under your state's law — right here, right now.

Enter Rent Details

Select Your State

City / Municipality (If applies)

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Select your state and fill out the form parameters to calculate interest and deadline penalties.

Legal Notice: Calculations are informational. This tool does not provide legal advice or create an attorney-client relationship.

The calculator requires JavaScript — but every state's rules are one click away in the state list below.

1
Pick your state

Every state — plus cities with their own ordinances like Chicago and San Francisco — with rules pulled straight from the statute.
2
Enter your deposit & dates

Deposit amount, lease start, and move-out date. Everything runs in your browser; we never see your numbers.
3
Get your numbers & take action

Interest owed, the exact return deadline, days overdue, and penalty exposure — plus a free statute-citing demand letter if your landlord is late.

Statute-Cited Rules: Every calculation lists and links to the specific state or city landlord-tenant code.
Verified & Dated: Every jurisdiction shows its last-verified date — see our methodology.
Free & Private: Calculations run locally in your browser. We never store your financial or rent details.

Deadlines, interest rules, and penalties for all 50 states and DC — each with its own calculator.