Iowa Small Claims Affirmative Defenses: What Defendants Can Raise
More Than Just Saying "I Disagree"
When you file your answer in Iowa small claims court, you can deny the claim, admit it, or admit part of it. But there is a fourth option that many defendants overlook: raising an affirmative defense.
An affirmative defense does not just say the plaintiff is wrong about the facts. It says that even if the plaintiff's version of events is entirely true, the law prevents them from collecting. That distinction matters because an affirmative defense can end the case in your favor without you proving the plaintiff lied.
How Affirmative Defenses Work in Small Claims
Iowa small claims procedure is informal — there is no separate motion for summary judgment, no formal answer brief, and no requirement to cite statutes by number. But you still need to raise your affirmative defense in your answer (eForm 3.11) or at the hearing. If you do not raise it, the magistrate may not consider it.
On eForm 3.11, use the section where you explain your dispute. Write a clear, factual statement: "I dispute this claim because [the statute of limitations has expired / the debt was already paid / the contract was breached by the plaintiff first]." You do not need legal jargon, but you do need to state the defense clearly enough that the magistrate and the plaintiff know what you are arguing.
Common Affirmative Defenses in Iowa
Statute of limitations. Every type of claim has a deadline for filing. Under Iowa Code § 614.1, written contracts generally have a 10-year period (§ 614.1(5)), unwritten contracts and claims without another specified period generally have a 5-year period (§ 614.1(4)), and claims for injury to a person or reputation generally have a 2-year period (§ 614.1(2)). The period depends on the type of claim. If you believe it has expired, raise the defense; the court decides whether the period applies.
The clock generally starts when the cause of action accrues. Do not assume that the date you discovered damage is the start date; accrual rules depend on the claim. Compare the applicable period with the accrual date and account for any applicable exceptions or tolling rules.
Payment. You already paid what was owed. This sounds obvious, but it comes up frequently when the plaintiff lost track of a payment or applied it to the wrong account. Bring bank statements, cancelled checks, Venmo or Zelle receipts, or any written acknowledgment of payment.
Accord and satisfaction. You and the plaintiff agreed to settle the dispute for a different amount, and you paid that amount. If the plaintiff accepted a partial payment as full settlement — especially if you wrote "paid in full" on the check and the plaintiff cashed it — the original claim may be extinguished.
Prior breach by the plaintiff. In contract disputes, if the plaintiff breached the agreement first, you may be excused from performing your end. For example, if a contractor sues you for the remaining balance but never finished the work, the contractor's own breach may relieve your obligation to pay.
Failure to mitigate. The plaintiff had a duty to minimize their losses and did not. If a tenant abandons a rental unit and the landlord does not make reasonable efforts to re-rent it as required under Iowa Code § 562A.29(3), the damages may be reduced.
Waiver or estoppel. The plaintiff's conduct led you to reasonably believe the obligation was excused. For example, if the plaintiff repeatedly told you not to worry about the payment and then sued months later, you may argue waiver.
Set-off. The plaintiff owes you money arising from the subject matter of the plaintiff's claim. Under Iowa Code § 631.7(4), no counterclaim is needed to assert that offset, and the magistrate can credit it against the claim. A debt from an unrelated transaction is not an offset under this rule.
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Raising Multiple Defenses
You can raise more than one affirmative defense. In fact, you should raise every defense that applies — even if they seem inconsistent. A defendant can argue both "I already paid this" and "even if I didn't, the statute of limitations has run." Iowa's informal small claims rules allow it.
Evidence You Need
Each defense requires specific evidence:
| Defense | Evidence to bring |
|---|---|
| Statute of limitations | Timeline showing dates of the alleged breach and the filing date |
| Payment | Bank records, receipts, cancelled checks, transfer confirmations |
| Accord and satisfaction | Settlement correspondence, endorsed checks, signed agreements |
| Prior breach | Contract terms, photos, correspondence showing the plaintiff's failure |
| Failure to mitigate | Evidence the plaintiff took no steps to reduce losses |
| Waiver | Emails, texts, or letters where the plaintiff excused performance |
| Set-off | Invoices, receipts, or contracts showing the debt arose from the subject matter of the plaintiff's claim |
Prepare three copies of everything — one for the magistrate, one for the opposing party, one for yourself.
Do Not Wait to Raise It
If you have a viable affirmative defense, state it in your answer and support it at the hearing. Raising a new defense for the first time at the hearing is technically allowed in informal small claims proceedings, but it gives the other side no time to prepare and may annoy the magistrate. Put it in writing on eForm 3.11.
For a full walkthrough of filing your answer, structuring your defense, and navigating every step of Iowa small claims procedure, the Iowa Small Claims Response Guide covers the complete process.
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