New Jersey Security Deposit Law: 1.5-Month Cap and Yearly Interest

By Steve Levine · Updated November 3, 2026

Short answer: New Jersey security deposit law caps the deposit at one and one-half times one month’s rent under N.J.S.A. 46:8-21.2, and the landlord must return it with interest, less itemized deductions, within 30 days after the tenancy ends under N.J.S.A. 46:8-21.1. A tenant who wins a deposit case can be awarded double the amount wrongfully withheld, plus court costs and reasonable attorney’s fees, under that same section.

What most sets New Jersey apart is that the interest belongs to you during the tenancy, not just at the end. The landlord must bank the deposit in New Jersey, tell you where it is within 30 days, and pay or credit the interest every year. If the landlord skips those steps, the Security Deposit Law lets you apply the deposit, plus 7% annual interest, toward your rent. That is an unusual self-help remedy, and it has strict notice rules.

The rules below come from the Department of Community Affairs’ Truth in Renting guide, the state’s official summary of landlord-tenant law, which cites each section of the Security Deposit Law, N.J.S.A. 46:8-19 et seq.

New Jersey security deposit law: quick reference

Rule	New Jersey	Statute
Deposit limit	1.5 times one month’s rent; yearly increases capped at 10% of the current deposit	N.J.S.A. 46:8-21.2
Return deadline	30 days after the tenancy ends; 5 business days after a fire, flood, condemnation or evacuation	N.J.S.A. 46:8-21.1
Itemized statement	Itemized list of deductions by registered or certified mail	N.J.S.A. 46:8-21.1
Interest / separate account	Held in trust in a New Jersey institution; interest belongs to the tenant and is paid yearly	N.J.S.A. 46:8-19
Penalty	Double the amount wrongfully withheld, plus costs and reasonable attorney’s fees	N.J.S.A. 46:8-21.1
Small claims limit	$5,000 for deposit cases	NJ Courts; N.J.S.A. 46:8-21.4

Who is covered

The DCA guide says the Security Deposit Law applies to most residential rentals, including mobile homes. The exception is an owner-occupied two- or three-family dwelling. Even there, a tenant can bring the law into play by sending the landlord a written request to follow it; the protections apply 30 days after the request. If you rent half of an owner-occupied duplex, send that letter.

A landlord isn’t required to collect a deposit at all, but under N.J.S.A. 46:8-26, a landlord who does must follow the law’s rules.

The 1.5-month cap, pet deposits and prepaid rent

Under N.J.S.A. 46:8-21.2, a deposit may not exceed one and one-half times one month’s rent. Any yearly increase may not exceed 10% of the current deposit. On $2,000 rent, the starting maximum is $3,000.

The DCA guide adds two important points. A pet deposit is allowed only if, combined with the regular deposit, it stays within the 1.5-month cap. And prepaid rent held to secure future rent, including last month’s rent, counts as part of the deposit no matter what it is called. The guide cites the court decisions Brownstone Arms v. Asher (1972) and Reilly v. Weiss (2009) for that rule. In practice, a landlord may require no more than first month’s rent plus 1.5 months’ security at move-in, or 2.5 times the monthly rent in total.

The bank, the notice and the annual interest

A deposit stays the tenant’s property and must be held in trust, not mixed with the landlord’s own funds. According to the DCA guide:

A landlord holding deposits for 10 or fewer units must deposit the money in an insured New Jersey bank or savings and loan, in an interest-bearing account.
A landlord with 10 or more units may use an insured money market fund of a New Jersey-based investment company with investments maturing in one year or less, or a variable-rate account at a New Jersey bank or savings and loan.
Seasonal rentals of not more than 125 consecutive days, by someone with a permanent home elsewhere, are exempt from the investment rules.

Within 30 days of receiving the deposit, and at each annual interest payment, the landlord must tell you in writing the institution’s name and address, the deposit amount, the account type and the current interest rate. The landlord must also notify you within 30 days of moving the deposit to another account or transferring it to a new owner.

Interest “belongs to the tenant.” Under N.J.S.A. 46:8-19(c), it is paid in cash or credited toward rent on your lease renewal or anniversary, or on January 31 if the landlord has notified you in writing that it pays then. Compare this with other states on our deposit interest page.

The rent-offset remedy

Under N.J.S.A. 46:8-19.1(c), if you don’t receive the required notice or interest, you may give the landlord written notice that the deposit plus 7% annual interest be applied to rent. For a missed annual notice or interest payment, you must first give written notice and allow the landlord 30 days to comply. Once the deposit is applied to rent, the landlord may not demand a new deposit. Follow the steps exactly, because withholding rent without them can lead to an eviction filing.

Deductions and wear and tear

The DCA guide lists permitted deductions as damage “over and above normal wear and tear” and “any other money due the landlord under the terms of the lease.” If damage or unpaid rent exceeds the deposit, the landlord may sue for the difference. No deductions may be made while you are still living in the unit. See our wear and tear guide for examples.

The 30-day return rule, and when it starts after a broken lease

Within 30 days after the tenancy ends, N.J.S.A. 46:8-21.1 requires the landlord to return the deposit plus interest, less deductions, by personal delivery, registered mail or certified mail. Any deductions must be itemized and sent by registered or certified mail within the same 30 days.

There is a catch for tenants who leave early. The DCA guide explains that if you break the lease without legal cause, the lease isn’t considered terminated until the unit is re-rented or the lease expires, whichever comes first, citing J.C. Mitchell v. First Real Estate (1996). The 30-day clock starts only then. Our lease-breaking guide covers your options.

A faster rule applies after displacement. If a public official posts a no-occupancy notice or certifies that the displacement will last more than seven days because of fire, flood, condemnation or evacuation, the landlord must return the deposit within five business days, and must tell you within three business days where to collect it.

Double damages

If the landlord fails to return the deposit within 30 days, or you disagree with the deductions, you may sue for double the amount you contend was wrongfully withheld. If you win, the court must award double the amount wrongly withheld plus full court costs, and may also award reasonable attorney’s fees, under N.J.S.A. 46:8-21.1.

Two more penalties apply in special cases. A landlord who willfully withholds a deposit paid through a state or federal assistance program may face a civil penalty of $500 to $2,000 per offense, paid to the agency that made the deposit. And under N.J.S.A. 46:8-25, unlawful use of deposit money is a disorderly persons offense, with a fine of not less than $200, up to 30 days in jail, or both.

Worked example

Andre rents in Jersey City for $2,000 a month and paid a $3,000 deposit, exactly 1.5 months. His lease ends August 31 and he moves out that day. On September 28, the landlord sends $1,800 by certified mail with a list: $400 to replace a cracked shower door and $800 to repaint walls with ordinary scuffs.

The shower door is damage beyond normal wear. The $800 repaint is not a valid deduction.
Andre sues for double the $800: $1,600.
If he wins, the court may also award his court costs and reasonable attorney’s fees.
He should also check that the refund included the interest his deposit earned.

His claim is well inside the $5,000 small claims limit. Start with a written demand; our demand letter guide shows what to include.

Where to sue

According to NJ Courts, renters can file for the return of a deposit of $5,000 or less in small claims court, which is part of the Special Civil Part. The DCA guide notes that under N.J.S.A. 46:8-21.4 you may file in the county where the unit is located or where the landlord lives, and that the $5,000 figure includes penalties but not court costs. Larger claims go to the Special Civil Part, which the Judiciary’s site lists for lawsuits of $20,000 or less. No state agency handles deposit disputes.

When the building is sold

Under N.J.S.A. 46:8-21, it is the new owner’s duty to obtain the deposit and accrued interest from the former owner. Whether or not the money actually changes hands, the new owner is responsible for investing it, giving the notices, paying interest, and returning it when you leave.

Frequently Asked Questions

Does last month’s rent count toward New Jersey’s 1.5-month cap?

Yes, according to the DCA guide. Prepaid funds held to secure future rent, including last month’s rent, are treated as part of the deposit regardless of label.

Can my landlord raise the deposit when I renew?

Only by up to 10% of the current deposit per year, under N.J.S.A. 46:8-21.2, and never above 1.5 times the monthly rent.

I rent in an owner-occupied two-family house. Am I protected?

Not automatically. You can make the Security Deposit Law apply by sending a written request to the landlord; it takes effect 30 days later.

I broke my lease. When is my deposit due?

Thirty days after the lease is treated as terminated, which, after a breach without legal cause, is when the unit is re-rented or the lease expires, whichever happens first.

Can I use my deposit as rent if my landlord never sent the bank notice?

Yes, under N.J.S.A. 46:8-19.1(c), by giving written notice that the deposit plus 7% interest be applied to rent. Missed annual notices require a 30-day cure period first.

This guide is not legal advice. Legal Services of New Jersey runs a free legal hotline, and the LSC directory lists other options. Neighbors can compare New York’s 14-day rule. Your next step: find the bank notice you should have received within 30 days of paying. If you never got one, you may have the rent-offset remedy described above.

Sources

Owed money from a settlement? Check what is open at OpenClassActions.com. Caring for someone with dementia? Find practical guides at HelpDementia.com. Working out a skin routine? Evidence-based answers at AcneAdvocate.com. Forgot the name of a movie? Identify it at FindThisMovie.com. Was your data exposed? Track active breaches at DataBreachRadar.com.