Statute of Limitations for Unjust Enrichment / Restitution in Arizona
6 min read
Published March 22, 2026 • By DocketMath Team
Overview
In Arizona, a claim framed as unjust enrichment or restitution often turns on a threshold question: how long you have to file. That deadline is governed by the statute of limitations (SOL)—the period after which a court generally will not entertain the claim if the defendant raises the time-bar.
For Arizona unjust enrichment / restitution disputes, the clean starting point is that the general civil limitations framework applies rather than the rule for criminal prosecutions. In the materials provided for this jurisdiction, the default generally applied period for unjust enrichment/restitution timing is:
- General SOL Period: 2 years
- General Statute: A.R.S. § 13-107(A) (as the provided citation reference)
Because you specifically noted that no claim-type-specific sub-rule was found, the guidance below applies the general/default period rather than a separate, claim-specific limitations rule.
Note: This blog is for information and planning, not legal advice. If you’re near a deadline, it’s wise to have the specific claim theory and dates reviewed against the full Arizona limitations rules and any unique accrual or tolling facts.
Limitation period
Default timing: 2 years from accrual
Using the provided jurisdiction data, the general/default SOL period is 2 years. Practically, that means the claim must be filed within 24 months of the event that triggers when the clock starts (often described as the accrual date).
You’ll usually need to pin down at least two dates to apply a limitations calculation:
- Trigger/accrual date (when the unjust enrichment/restitution claim “starts”)
- Filing date (when the complaint/petition is filed)
DocketMath’s calculator is designed to convert those dates into a clear “earliest/last-day” deadline using the selected SOL length (here, 2 years).
Inputs and how outputs change
When you run the DocketMath statute-of-limitations tool (primary CTA below), you’ll typically enter:
- Start date (accrual date)
- Changing this date shifts the entire deadline.
- Jurisdiction (US-AZ)
- Ensures the calculator uses the Arizona default SOL length for the selected rule set.
- Case type / claim mapping (if prompted)
- For this jurisdiction entry, there is no separate claim-type-specific rule identified, so the calculator should apply the general/default 2-year period.
The output you’re looking for is usually one or both of:
- Last permissible filing date
- Whether the claim is time-barred based on the filing date you provide
A simple timeline example
If the accrual date is January 15, 2024, then under a 2-year SOL:
- Target filing window: through about January 15, 2026 (exact “last day” may depend on how the calculator handles weekends/holidays and date inclusivity)
If you file on January 20, 2026, you’re outside the 2-year window under the general/default rule.
Key exceptions
Even when a case starts with a 2-year default SOL, the deadline can change due to exceptions. The exact availability of any exception depends on the facts and how the claim is pleaded. Below are the most common categories that often matter in SOL disputes—without assuming any particular outcome.
1) Accrual/trigger disputes
A frequent practical issue is when the claim accrued. For unjust enrichment/restitution theories, parties may disagree about the date from which the defendant’s alleged retention or enrichment became actionable.
Checklist to prepare:
2) Tolling (pauses in the limitations clock)
Tolling doctrines can pause or extend the SOL. Common tolling triggers in many legal systems include:
Because the provided jurisdiction data does not list tolling rules explicitly, treat this as a prompt to investigate, not a guarantee. DocketMath can help with baseline deadlines, then you can evaluate whether any tolling or accrual adjustments apply to your specific facts.
3) Claim framing and “what SOL applies”
Even if you label the claim “unjust enrichment” or “restitution,” courts may analyze the underlying substance (for example, whether it resembles a contract-based dispute). If the SOL applied in practice differs from the general/default period, your deadline could shift.
For this entry, your note is clear: no claim-type-specific sub-rule was found, so the baseline calculation uses the 2-year general/default period.
Warning: Don’t rely solely on the label “unjust enrichment.” The limitations analysis can depend on the facts and how the cause of action is characterized. If your timeline is tight, verify that the baseline SOL is actually the one a court would apply to your specific pleadings.
Statute citation
The provided general/default SOL rule and citation for Arizona in this jurisdiction entry is:
- A.R.S. § 13-107(A)
- General SOL Period: 2 years
Source reference provided: https://www.findlaw.com/state/arizona-law/arizona-criminal-statute-of-limitations-laws.html?utm_source=openai
How to read the citation in practice
When you use DocketMath, the calculator should map the Arizona entry (US-AZ) to a 2-year default limitations window and compute the deadline based on your start/accrual date.
Because this entry uses the general/default period (and explicitly does not identify a claim-type-specific sub-rule), your SOL computation should be treated as the baseline unless you have an articulated reason (such as accrual/tolling) to adjust it.
Use the calculator
DocketMath’s statute-of-limitations calculator can turn your dates into a deadline quickly.
- Primary CTA: /tools/statute-of-limitations
What to enter
Use these inputs to match the 2-year general/default rule for Arizona:
- Jurisdiction: US-AZ
- Start/accrual date: the date your unjust enrichment/restitution theory begins (your fact-based trigger)
- Filing date: the date you plan to file (or already filed)
How to interpret results
A typical workflow:
- Run the calculator with your projected filing date
- If the result indicates it’s outside the SOL window, adjust in a controlled way:
- Re-check the start/accrual date you selected
- Then evaluate whether a recognized exception could apply (e.g., tolling), rather than simply changing inputs to “make it fit”
If the tool shows the last permissible filing date clearly, you can plan next steps around that concrete date.
Related reading
- Choosing the right statute of limitations tool for Vermont — Tool comparison
- Choosing the right statute of limitations tool for Connecticut — Tool comparison
