How to Write a Security Deposit Demand Letter (Plus a Free Template)

A simple demand-letter structure: timeline, amount, evidence, and deadline — plus a copy/paste template and when to use certified mail.

1 min readUpdated January 2026

A demand letter is a structured escalation step. It's not about sounding aggressive — it's about being clear, factual, and easy to verify.

Demand letter structure

  1. Identify the property, tenancy dates, and deposit amount.
  2. State what you received (refund and/or itemization) and what's missing.
  3. Dispute deductions briefly (wear vs damage, depreciation, missing receipts).
  4. Demand a specific amount by a specific deadline.
  5. Attach evidence and keep proof of delivery.

Use a template (general)

Copy/paste: demand letter for return of security deposit.

Use a state-specific letter (better)

If you're in a supported state, a state-specific letter with correct citations is stronger. Use the free analysis flow to generate one.

Delivery tips: certified mail guide.

Next step

If your landlord missed a deadline or charged questionable deductions, you can generate a demand letter and evidence checklist in minutes.