Security Deposit Interest Calculator
If your state requires it, you owe your tenant interest on their security deposit. Enter the deposit, your state's required rate, and the tenancy dates to see the interest owed and the total to return. Free, no signup.
How security deposit interest works
Where it's required, the math is straightforward once you know your state's rate:
- Simple interest: deposit × annual rate × years held. Each year earns the same amount, based on the original deposit.
- Compounded annually: each year's interest is added to the balance before the next year accrues, so later years earn slightly more.
Years are measured from the tenancy start to the return (or annual accrual) date. States that require interest usually also require you to hold the deposit in a separate, interest-bearing account and to disclose where it's held — so the interest calculation is only part of the obligation.
Never lose track of a deposit again.
PropertyHub records each deposit, the account it's held in, and what's owed back — so move-out accounting takes minutes, not an afternoon. Free to start.
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