How to Write a Security Deposit Deduction Letter

A step-by-step guide to writing an itemized security deposit deduction letter that holds up in court — plus a free template structure you can follow.

Last updated July 6, 2026

Key takeaway

A compliant deduction letter has six required parts: header, deposit summary, itemized deductions, refund math, enclosures, and statutory citation. Skip any one and you risk losing the dispute.

Why this letter matters so much

The deduction letter is the document a small-claims judge will read first. It's also the document the tenant uses to decide whether to dispute. A clean, professional, well-documented letter often prevents disputes from being filed at all.

A sloppy letter — vague line items, missing math, no citation — invites disputes and loses them.

The six required parts

Every compliant letter should contain:

  • Header: date, your name + mailing address, tenant name, property address, tenant forwarding address
  • Deposit summary: original deposit amount, tenancy dates, date possession was returned
  • Itemized deductions: each line with category, description, amount, and receipt reference
  • Refund math: deposit minus deductions = refund (or balance owed by tenant)
  • Enclosures: list of attached receipts, invoices, and photo references
  • Statutory citation: 'Per [state statute], this itemized statement is provided within X days of possession returned'

A free template structure

Here's the structure MoveOutGuard uses in its drafts (you can replicate it manually):

[Date]\n\nRe: Security Deposit Itemized Statement — [property address]\n\nDear [Tenant name],\n\nThank you for renting at [address]. Per [state statute], this itemized statement is provided within [X] calendar days of the date you returned possession of the unit on [possession date].\n\nOriginal security deposit: $[amount]\n\nItemized deductions:\n • [Category] — [Description]: $[amount]\n • [Category] — [Description]: $[amount]\n\nTotal deductions: $[amount]\nRefund enclosed: $[amount]\n\nEnclosures: [receipt/invoice references]\n\nSincerely,\n[Landlord name]

Tone matters

Use a neutral, professional tone. No threats, no legal conclusions, no accusations of bad faith. State what's owed, what was deducted, and why. The tenant should be able to read the letter and either accept it or send a specific, narrow objection — not feel attacked.

Frequently asked questions

Should I email or mail the letter?

Mail to the forwarding address with tracking (or certified mail). Email is convenient but proof of mailing is weaker. Several states require physical mailing to satisfy the statute.

What if deductions exceed the deposit?

State the balance owed by the tenant and request payment by a specific date. Be careful — collection of these balances usually requires a separate process and isn't automatic. Consult an attorney if the amount is significant.

Related guides

Stop drafting by hand

MoveOutGuard turns your receipts and photos into a state-specific, review-ready deduction letter.

MoveOutGuard is a document preparation and evidence organization tool. It is not a law firm and does not provide legal advice. Drafts, checklists, and deadline estimates require your review and are not a guarantee of compliance or outcomes. For legal questions, consult a licensed attorney.