About RenterCalc
A free resource built to help US renters understand their security deposit rights — and fight back when landlords don't play by the rules.
RenterCalc is a free resource built to help renters understand their security deposit rights.
Every year, millions of renters lose money on security deposits they're legally owed — because they don't know the rules. Deadlines vary by state. Penalty laws are confusing. And most people don't realize they can fight back.
Whether your landlord missed the deadline by one day or two months, you likely have legal remedies. Most states impose automatic penalty damages — often 2× or 3× your withheld deposit — and many allow you to recover attorney fees too. You just need to know where to look.
Our free tools help you:
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Calculate exactly how much your landlord owes you Enter your state, deposit, and move-out date. Get your deadline, penalty, and total amount owed — instantly. Try the calculator →
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Know your state's return deadline and penalty laws Look up the exact statute, deadline, and penalty rules for all 50 states and DC. Browse state laws →
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Generate a professional demand letter in minutes A formal demand letter citing your state's statute is often all it takes to get paid. Generate your letter →
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Understand your options if your landlord won't pay From small claims court to state housing agencies — we cover the paths forward when landlords ignore the law.
Everything on RenterCalc is free. No accounts, no signups, no hidden fees. We believe knowing your rights shouldn't cost anything.
We are not attorneys and this site does not provide legal advice. The information on RenterCalc is for general educational purposes only. For legal questions specific to your situation, please consult a licensed attorney in your state. Read our full disclaimer.
Ready to Find Out What You're Owed?
Use our free calculator to get your landlord's deadline, penalty amount, and total owed — in under 60 seconds.
No signup required · 100% free · All 50 states