Arizona Small Claims Demand Letter — How to Write One Before Filing

Why Send a Demand Letter

A demand letter does two things at once. It gives the other side a concrete deadline to pay, and it creates a paper trail showing you tried to resolve the dispute before going to court. Arizona Justices of the Peace and Hearing Officers routinely look for evidence of good-faith settlement attempts, and a well-documented demand letter delivers that on page one of your evidence binder.

Most disputes that end up in small claims could have settled earlier if someone had put the amount and deadline in writing. A demand letter often does exactly that — the defendant sees the real number and the filed-in-court alternative, and decides paying is cheaper than showing up.

When a Demand Is Legally Required

For most small claims cases, a demand letter is strategic, not mandatory. But there's one major exception: security deposit disputes under A.R.S. § 33-1321.

After the tenancy ends and the tenant delivers possession, the landlord's 14-business-day period to itemize deductions and refund any amount due begins when the tenant makes a demand. If the landlord fails to comply, A.R.S. § 33-1321(E) allows the tenant to recover the money due plus damages equal to twice the amount wrongfully withheld. Keep proof of the demand; the statute does not make a separate post-deadline demand a prerequisite to those damages.

For contractor disputes, sending a demand isn't required by statute, but it establishes the timeline of breach. You asked for a refund on a specific date; the contractor ignored it; you filed suit. That sequence matters.

What to Include

A demand letter doesn't need legal jargon. It needs clarity:

• The exact amount owed, including any interest or costs
• What the money is for — brief facts, not a legal argument
• A specific deadline to pay (10–14 days is standard)
• How to pay — check, bank transfer, Venmo, whatever you'll accept
• What happens if they don't pay — state that you'll file a small claims complaint in the applicable Justice Court precinct

Date the letter. Sign it. Keep a copy.

How to Send It

Certified mail with return receipt requested is the standard. The green card that comes back with the recipient's signature proves they received it. If the recipient refuses to sign or the mail comes back unclaimed, you still have USPS tracking showing the attempt.

For security deposit disputes specifically, certified mail with restricted delivery is stronger — it proves the named recipient personally signed, not a household member or office worker.

Keep the green card or electronic delivery receipt. You'll include it in your evidence binder if the case goes to hearing.

After Sending

If the deadline passes without payment or a reasonable counteroffer, you're ready to file your complaint. Your demand letter becomes Exhibit A in your case file — proof that you gave the defendant fair warning and a chance to resolve things without court involvement.

The Arizona Small Claims Filing Guide includes a demand letter template with the structure above, plus a service tracking log for managing the certified-mail return receipt and the 45-day proof-of-service deadline that starts once you file your complaint.

See more Arizona guides →