The law in plain English
Return deadline
Under N.J. Stat. Sections 46:8-19 to 46:8-26, the deposit response usually has to be sent within 30 days of the move-out timeline described by the state rule.
Required notice
New Jersey generally requires the deposit, accrued interest, and any itemized deductions within 30 days after move-out, with a faster 5-business-day rule in fire, flood, or condemnation cases.
This dispute type
New Jersey renters usually push back on carpet-cleaning deductions when the landlord appears to be charging for routine turnover rather than a tenant-caused problem. The timing, itemization, and bad-faith rules still matter even when the landlord says the carpet needed extra work.
Penalty leverage
If the withholding was wrongful or in bad faith, the exposure allowed under the statute is: You can recover double the amount due (mandatory), plus court costs and reasonable attorney's fees