How to Fight a Debt Lawsuit in Arizona (Justice Court Step-by-Step)

If a debt collector has filed a lawsuit against you in Arizona, act now. You are likely being sued in Justice Court — where most consumer debt cases involving $10,000 or less are filed. Arizona Justice Court rules give you 20 days from the date you were served in Arizona to file a written Answer (30 days if you were served outside Arizona). Miss that deadline and the collector can ask for a default judgment — a court order saying you owe the money, issued without any hearing or trial.

Why 20 days matters so much

A default judgment is not just a legal loss on paper. Once entered, a creditor can use it to garnish your wages, freeze your bank account, and attach property. The default judgment does not require the creditor to prove anything about the debt — they just need to show you did not respond. Filing an Answer, even a basic one, forces the collector to actually prove their case and preserves every defense you have.

First: Check whether a default was already entered

Before doing anything else, find out whether the court has already entered a default or a default judgment against you. In Maricopa County, you can search the court's online docket at public.courts.az.gov using your name and case number (found on the summons). If a default has been entered but not yet converted to a final judgment, you may still be able to file a motion to set aside the default. If a final default judgment has already been signed, the process is harder — but a set-aside motion may still be possible. Check the docket right away.

Step 1 — Find out when you were served

The clock runs from the date service was completed, not the date you opened the envelope. The summons will state the case number, the court, and usually the date of service. Write that date down and count forward 20 calendar days. If day 20 falls on a weekend or court holiday, you typically have until the next business day — but do not rely on that margin. File before the deadline.

Step 2 — Get the Answer form

Arizona Justice Courts use standardized forms. Get the defendant's Answer form from your specific Justice Court — download it from the court's website (in Maricopa County, the Justice Courts publish a civil 'Answer' form at justicecourts.maricopa.gov) or pick it up at the clerk's window. Form titles and numbers vary by county and change over time, so ask the clerk for the current defendant's Answer form for your court. Using the official current form is the safest option.

Step 3 — Complete the Answer

Your Answer must respond to each numbered paragraph in the complaint. For each one, you state: Admit (you agree it is true), Deny (you dispute it), or Deny knowledge or information sufficient to form a belief (you do not have enough information). When in doubt, deny — you cannot un-admit a fact later.

After responding to each paragraph, list your affirmative defenses. These are legal reasons why the collector should not win even if the basic facts are true. Affirmative defenses must be raised in your Answer — if you wait until trial, you may be ruled to have waived them.

The most important affirmative defenses in Arizona debt cases

• Statute of limitations. Arizona limits how long a creditor has to sue. Written contracts and credit card debts are subject to a 6-year limitations period under A.R.S. § 12-548(A). Oral debts and open accounts are generally limited to 3 years under A.R.S. § 12-543. See the Arizona statute of limitations guide (linked below) for how the clock starts. If the SOL has run, you must raise this in your Answer — the court will not apply it for you.
• Lack of standing — the collector does not own your debt. If the plaintiff is a debt buyer — a company that purchased your account from the original creditor — they must prove they legally own the right to collect it through a documented chain of assignment. A gap in that chain is a defense.
• Improper service. Arizona rules require that you be served properly. If service was defective — left with the wrong person, mailed without proper follow-up, or otherwise not done correctly — raise that in your Answer. Service issues can also support a motion to set aside a default judgment.
• Failure to state a claim. This technical defense says that, even if everything in the complaint is true, the collector has not alleged facts that give rise to a legal right to collect. It is most useful when the complaint is vague or incomplete.
• Wrong person or inflated amount. If the debt is not yours, or the amount has been inflated with unauthorized fees or interest, deny the allegations explicitly and state why.

Step 4 — File and serve the Answer

File your completed Answer with the Justice Court clerk before the 20-day deadline. Most Arizona Justice Courts accept in-person filing; some also accept filing by mail — confirm with the specific court. You may owe a small filing fee; courts typically have a fee-waiver form if paying creates a hardship. Keep a file-stamped copy for your records. You must also serve a copy on the plaintiff's attorney — send it by first-class mail or another permitted method and keep proof.

What happens after you file

Once you file a timely Answer, the case becomes active litigation. The court may schedule a pretrial conference. Debt collectors often prefer to settle once a defendant responds — because they then have to actually prove their case. Through discovery, you can request the original credit agreement, account statements, and chain-of-assignment records. Many debt buyers cannot produce complete documentation and will settle or drop the case rather than proceed.