Statute of Limitations for Written Contract in Oregon

Overview

Run this scenario in DocketMath using the Statute Of Limitations calculator.

In Oregon, the statute of limitations for a written contract is generally 10 years under ORS 12.080. That means a lawsuit to enforce (or collect on) many written agreements typically must be filed within 10 years from when the claim “accrued”—often tied to when payment was due or when the breach occurred.

DocketMath’s statute-of-limitations calculator helps you turn that rule into a specific deadline you can use for planning. One important caveat: you’ll still want to verify the accrual date for the specific dispute (the date the claim could first be brought). Oregon limitation periods can turn on facts like installment timing, delivery/performance dates, acceptance, and any contract notice or condition requirements.

Limitation period

Oregon’s baseline rule for many actions on written contracts is a 10-year limitations period.

What “10 years” usually means in practice

In most written-contract disputes, the countdown starts when the claim accrues, commonly when:

• Payment becomes due (for money/payment obligations), or
• Performance is due and not performed, or
• A breach is clear for obligations that have a defined deadline

Installments can create multiple deadlines

If the written contract is structured as installments (or otherwise breaks performance/payment into separate parts), the limitation period may not be driven by one single breach date. Instead, each missed installment can create its own accrual point—meaning:

• More recent amounts may still be collectible, and
• Older amounts may fall outside the 10-year window.

Multiple contract dates can affect accrual

A written agreement may involve several relevant dates (for example):

• Signing date (e.g., Jan 1, 2023)
• Service period (e.g., through Dec 31, 2023)
• Invoice due dates (e.g., Feb 15, Mar 15, Apr 15)

Even if “final performance” occurred later, earlier invoices that became due earlier can drive earlier accrual dates. That’s why modeling the correct dates matters—DocketMath can help you visualize how shifting one key date changes the filing deadline.

Checklist: identify the dates that matter

Before using the calculator, gather the dates tied to when the claim could first be brought:

Key exceptions

Oregon’s “10 years for written contracts” is a strong default, but the deadline can change when another rule governs the particular claim—or when accrual runs differently based on contract facts.

1) The claim may not be treated as “on a written contract”

Not every dispute that mentions a contract automatically qualifies as an action upon a contract in writing for limitation purposes. If the lawsuit is really based on a different legal theory (for example, certain claims arising from statute rather than enforcement of the contract terms), a different limitations period could apply.

2) Accrual may not equal the breach date

Even when ORS 12.080 applies, the start date is based on accrual, not always the moment a breach occurred in hindsight. Accrual can shift if:

• Payment is contingent on an event, so accrual may wait until that event happens
• Performance is ongoing, so each required obligation may accrue when it becomes due

3) Installment structures can narrow what’s still collectible

Where the contract breaks obligations into parts, the limitation period may limit recovery for some amounts even if later amounts remain timely. Practically, this can mean:

• You may still sue for newer unpaid amounts, while
• Older unpaid amounts may be time-barred.

4) Contract terms can affect when the claim becomes actionable

Contract provisions can affect when a breach is actionable, including:

• Express due dates
• Conditions precedent
• Notice or cure requirements
• Acceptance requirements or other gating terms

The calculator can’t replace contract review, but it can help you model deadlines using the dates your contract points to.

Statute citation

For qualifying written-contract actions in Oregon, the key statute is:

• ORS 12.080 — 10 years for “[a]n action upon a contract in writing…”

Two practical points to keep straight:

1. The length (10 years) is fixed by ORS 12.080 for qualifying claims.
2. The start (accrual date) is fact-driven and depends on when the claim could first be brought based on the contract’s obligations and the breach timeline.

Gentle note: This page is for general information and planning purposes, not legal advice. If you’re facing a real dispute, consider confirming the accrual date and any exceptions with a qualified professional.

Use the calculator

Use DocketMath’s statute-of-limitations tool here: /tools/statute-of-limitations.

How to run the calculation (what you’ll typically enter)

Inputs can vary, but the tool generally helps you compute a latest filing date by using:

• Jurisdiction: **Oregon (US-OR)
• Claim type: written contract
• A chosen accrual/start date (for example, when payment was due or when the breach became actionable)

How outputs change when you change the start date

Because ORS 12.080 provides a 10-year period, the filing deadline will typically shift by the same general amount when the accrual date changes.

For example (illustrative only):

• If you use Jan 15, 2015 as the start/accrual date, the deadline lands around Jan 15, 2025 (subject to the calculator’s date rules).
• If you use Jul 1, 2016, the deadline shifts to around Jul 1, 2026.

That’s why choosing the correct start date matters. In many disputes, differences between invoice due dates, service-end dates, and notice/cure timelines can move the deadline by months or years.

Practical workflow

1. Choose the date the obligation became due (or when nonperformance became actionable).
2. Confirm that the claim truly fits the “written contract” category for limitation purposes.
3. Run the calculator and review the latest filing date it produces.
4. If the contract involves installments, consider repeating the analysis for the key invoice/breach dates that create distinct accrual points.

Sources and references

Start with the primary authority for Oregon and confirm the effective date before relying on any output. If the rule has been amended, update the inputs and rerun the calculation.

• Or. Rev. Stat. § 12.010

Related reading

• Choosing the right statute of limitations tool for Vermont — How to choose the right calculator
• Statute of limitations in Singapore: how to estimate the deadline — Full how-to guide with jurisdiction-specific rules
• Choosing the right statute of limitations tool for Connecticut — How to choose the right calculator