The law in plain English
Return deadline
Under Mo. Stat. Section 535.300, the deposit response usually has to be sent within 30 days of the move-out timeline described by the state rule.
Required notice
Missouri generally requires an itemized list of deductions and any remaining deposit within 30 days after the tenancy ends.
This dispute type
In Missouri, renters usually challenge deposit deductions for scuffs, faded paint, flattened carpet, and similar aging because those issues look more like ordinary use than repairable damage. The statute still controls when the refund had to be sent and how deductions had to be explained.
Penalty leverage
If the withholding was wrongful or in bad faith, the exposure allowed under the statute is: You can recover up to twice the amount wrongfully withheld