Security Deposit Demand Letter: Free Template + When to Send It

A demand letter is the cheapest legal tool a tenant owns. It costs a stamp, it puts the landlord on written notice, and in every state it is the step a judge will ask whether you took before filing. Below is a copy-ready template and the rules for using it well.

When to send one

Send a demand letter when your state's return deadline has passed without either a refund or an itemized statement of deductions. The deadline runs from when you gave up possession — normally the day you returned keys — and ranges from 14 days in the fastest states to 45 or 60 in the slowest. Sending earlier than the deadline weakens your letter; sending within a week of the deadline passing is ideal.

What makes a demand letter work

Four things. First, the facts: the address, your dates of tenancy, the deposit amount, and the date you returned keys. Second, the law: your state's return deadline and statute citation — check your state page and paste the citation in. Third, a specific demand with a deadline of its own: state exactly how much you want and give 7 to 14 days to pay it. Fourth, the next step: say plainly that if the deadline passes you will file in small claims court, where wrongful withholding can add statutory penalties on top of the deposit. Keep the tone flat and factual; angry letters give lawyers something to enjoy.

The template

[Your name]
[Your current address]
[Date]

[Landlord or Property Manager name]
[Management company / mailing address]

Re: Return of security deposit — [Unit address]

Dear [Name]:

I was the tenant at [unit address] from [start date] to [end date]. I returned all keys and gave up possession on [move-out date], and I provided my forwarding address on [date].

Under [state statute citation — see your state page], you were required to return my security deposit of $[amount] (or provide an itemized written statement of deductions) within [X] days of that date. That deadline passed on [deadline date], and I have received neither the refund nor an itemized statement.

I demand payment of $[amount] within 14 days of the date of this letter. If I do not receive full payment by [date + 14], I will file in small claims court without further notice. In [state], wrongful withholding of a deposit may also expose you to [statutory penalties — e.g., double or treble damages] and court costs.

Payment can be sent to the address above or by electronic transfer — confirm by reply and I will provide details.

Sincerely,
[Your name]
[Phone / email]

How to send it

Send it twice. Email the same day so there is a timestamped copy in your account, and mail a printed copy by certified mail with return receipt so you can prove delivery. Keep copies of everything, including the envelope. If the deadline in your letter passes unanswered, the next stop is small claims court in the county where the unit sits — bring the lease, the photos, the move-out message, and this letter with its delivery receipt, and the case usually argues itself.

One caution

Demand only what the law actually owes you. Deductions for unpaid rent or damage beyond normal wear are legal in every state, and a letter that ignores legitimate charges costs you credibility. If the itemized deductions are inflated rather than invented, dispute the specific numbers and offer what you believe is fair — that letter is a negotiation, not a war.