Statute of Limitations for Account Stated / Open Account in Wyoming

Overview

In Wyoming, “account stated” and “open account” disputes commonly show up as collection claims for unpaid invoices, goods, or services. Both labels describe how a balance is represented—either as an asserted settled amount (account stated) or an ongoing transactional record (open account). Even though the legal theories differ, Wyoming’s statute of limitations treatment often turns on the same practical question: which general limitations period applies to the claim being filed.

DocketMath focuses on the timing mechanics so you can estimate deadlines and plan next steps. This guide is written for informational purposes only and does not provide legal advice. For case-specific determinations (especially where Wyoming pleading details matter), you’ll want to confirm the theory of recovery used in the complaint and how Wyoming courts characterize the underlying claim.

Limitation period

Wyoming’s general SOL period (default)

Wyoming sets a 4-year general statute of limitations for many civil actions under the catch-all framework for specified time periods. The default period you’ll use for account stated/open account (when no special sub-rule applies) is:

• 4 years

DocketMath uses the general period above as the baseline unless you supply additional information suggesting a different limitations category clearly governs.

When does the clock start?

Statute-of-limitations timing often depends on the event that starts the limitations period. In many debt/account disputes, the starting point is typically tied to:

• the date of the last transaction giving rise to the balance for an open account, or
• the date the amount is asserted/acknowledged as due for an account stated theory.

Because Wyoming’s SOL rules can interact with factual details (like partial payments, demands, or accrual arguments), you should treat the “start date” as an input, not a guess. DocketMath’s calculator is designed for that: you provide the best-supported date from the record you have (e.g., last invoice date, last payment date, or date of written demand/statement), and the tool calculates the estimated deadline.

How output changes with your inputs

Use these common inputs when running DocketMath’s statute-of-limitations calculator:

• Start date (the trigger)

  • Later start dates push the SOL deadline out.
  • Earlier start dates can make the claim appear time-barred sooner.

• Jurisdiction (Wyoming)

  • Selecting US-WY ensures Wyoming’s general period is applied.

• General period vs. alternative theory

  • Because no special account stated/open account sub-rule was found here, the calculator applies the general/default 4-year period.
  • If you later identify a different category that clearly governs (for example, a claim type with an explicit different limitation period), the deadline may change—DocketMath supports re-running with updated parameters.

Practical checklist before calculating

Before you run numbers, gather:

• the last invoice/service date (open account context), and/or
• the date of the last payment (to assess whether it affects timing),
• the date you received a statement or demand (account stated context),
• the date the lawsuit was filed (to compare against the deadline).

Even without legal advice, you can sanity-check whether the dates are plausibly within the 4-year window.

Timing sanity-check table

Key exceptions

Wyoming’s general SOL period is a starting point, but several real-world events can change the analysis. These are not Wyoming-specific “guarantees,” yet they frequently matter in debt/account litigation. Because the factual record drives outcomes, treat the following as issue-spotting items for your own review.

1) No dedicated account-stated/open-account sub-rule found

As noted above, this guide uses the general/default 4-year period because no claim-type-specific sub-rule for account stated/open account was found in the provided jurisdiction data. If your complaint or underlying contract clearly fits a different statutory category, the limitations period could be different.

2) Accrual disputes (what counts as the “trigger” date)

A major exception-like issue is not a different statute—but the start date. Wyoming courts can differ in how they treat:

• when the cause of action accrues for an open account balance,
• when an account is sufficiently asserted/acknowledged for an account stated theory.

If you pick the wrong start date, your calculated deadline can be off by months—or years.

3) Tolling or interruption events

Some legal circumstances can pause or alter limitations timing (commonly known as tolling or interruption). Common examples in civil practice include events that legally extend time before the limitations period runs. Whether those apply depends on Wyoming doctrine and the specific procedural posture.

DocketMath can’t automatically confirm tolling without case facts, but you should track any events such as:

• statutory tolling triggers,
• bankruptcy filings (timeline effects),
• certain procedural actions that may impact timing.

4) Partial payments and acknowledgments

In many account disputes, partial payment or written acknowledgment can affect the timing story. Even if the statute remains “4 years” on paper, the practical dispute often becomes:

• did the last meaningful event reset or affect accrual, and
• does the conduct create an acknowledged balance?

If you have written correspondence (emails, invoices marked “paid,” statements signed or confirmed), those documents can strongly influence the “start date” you should use.

Statute citation

The Wyoming general/default statute of limitations applied here is:

• Wyo. Stat. § 1-3-105(a)(iv)(C)

  • 4-year general SOL period (as reflected in the jurisdiction data provided, sourced from https://www.wyoleg.gov/)

This is the baseline used for the account stated/open account timing estimate discussed in this article. Because no account-type-specific sub-rule was found, this guide does not swap to a different shorter or longer period.

Use the calculator

Ready to generate a deadline estimate? Use DocketMath’s statute-of-limitations calculator:

• /tools/statute-of-limitations

Inputs to enter

1. Jurisdiction: choose **Wyoming (US-WY)
2. Claim start date: enter the date you believe the cause of action accrued (for example, last transaction date for an open account or statement/demand/acknowledgement date for an account stated approach).
3. (Optional) Filing date: if available, add it so DocketMath can compare “filed on” versus “deadline.”

What the output means

DocketMath returns an estimated SOL deadline based on Wyoming’s general 4-year period under Wyo. Stat. § 1-3-105(a)(iv)(C).

Then you interpret it as:

• If filing date is after the deadline: the claim may be time-barred under a basic limitations analysis.
• If filing date is before the deadline: the claim may be timely, subject to any accrual disputes or tolling arguments.

Quick “what-if” rerun idea

If you’re unsure whether to treat the “start” as:

• last invoice date vs.
• date of demand/statement vs.
• date of last payment,

run the calculator 2–3 times. The comparison can clarify which date anchors the strongest limitations argument.

Related reading

• Choosing the right statute of limitations tool for Vermont — Tool comparison
• Statute of limitations in Singapore: how to estimate the deadline — How-to guide
• Choosing the right statute of limitations tool for Connecticut — Tool comparison