✓ Verified September 2026
To contest a will in Oregon, you file in the probate court within a fixed window and prove one of a short list of legal grounds. This guide gives the Oregon answer in plain English, and it starts with the deadline, because that is the fact that ends more cases than any other. All facts are from Oregon law, verified as of September 2026.
In This Oregon Guide:
Contest a Will in Oregon: At a Glance
Here are the Oregon facts that decide whether you can contest a will in Oregon:
| Deadline to contest | 4 months (ORS 113.075(3)). A will contest must be commenced before the later of: (a) 4 months after the date the personal representative delivers or mails the ORS 113.145 “Information to Heirs and Devisees” notice to the person on whose behalf the petition is filed, or (b) 4 months after the first publication of notice to interested persons, if that person was not required to be named as an interested person in the petition. The ORS 113.145 notice itself must state that the person’s rights may be barred unless the person proceeds under ORS 113.075 within 4 months. The personal representative must file proof of that delivery or mailing within 30 days after appointment (ORS 113.145(4)). A claim that the decedent agreed, promised or represented that the decedent would make, revoke or not revoke a will or devise, or would die intestate (ORS 113.075(1)(c)), may be brought as a separate action in any court of competent jurisdiction rather than in the probate proceeding. |
| What starts the clock | Delivery or mailing of the ORS 113.145 information notice to the interested person (not the death, and not the admission of the will by itself); if the person was not entitled to that mailed notice, the clock runs from the first publication of notice to interested persons. Because the notice must go out within 30 days after the personal representative is appointed, the practical clock for most heirs and devisees starts within about a month of the estate being opened. |
| Who can contest | “Interested persons” only. ORS 111.005(19) defines an interested person to include heirs, devisees, children, spouses, creditors, and any others having a property right or claim against the estate of the decedent that may be affected by the proceeding, and fiduciaries representing interested persons. Oregon courts read this to require an actual property right or claim that the proceeding could affect — so beneficiaries under a prior or later will, intestate heirs who would take if the will fell, and creditors with an affected claim can qualify; a person whose position would not improve if the contest succeeded generally lacks standing. |
| No-contest clause | YES — enforceable, with narrow exceptions. ORS 112.272 states that an in terrorem clause (a provision reducing or eliminating a devise if the devisee contests the will) is valid and enforceable, and that the court SHALL enforce it even if the devisee proves there was probable cause for the contest. Oregon is therefore stricter than most states: there is no general probable-cause or good-faith safe harbor. The court shall NOT enforce the clause where the devisee establishes probable cause to believe the will (or the relevant portion) is a forgery or was revoked, and the clause does not reach mere objections to the personal representative’s acts in administration, requests for construction/interpretation, or certain other proceedings identified in the statute. ORS 112.272 is not a complete codification — common law still governs where not inconsistent. |
| What the filing is called | A “petition” contesting the will, filed in the existing probate proceeding in the estate’s case file (ORS 113.075(2)). Exception: a claim under ORS 113.075(1)(c) — a contract to make, revoke, or not revoke a will — may be commenced as a separate civil action in any court of competent jurisdiction. Objections to a will offered but not yet admitted are also raised by petition/objection in the same probate case. |
| Court | The circuit court for the county where the estate is being probated, exercising probate jurisdiction (ORS 111.075, ORS 111.085). Oregon has no separate surrogate’s or probate court. Six counties — Gilliam, Grant, Harney, Malheur, Sherman and Wheeler — vest probate jurisdiction in the county court instead (ORS 111.075); appeals from a county court exercising probate jurisdiction go to the circuit court and Court of Appeals under ORS 5.120. |
| Jury trial | NO. ORS 111.205 provides that proceedings in a probate proceeding are not triable by jury except as otherwise specifically provided by law; a will contest under ORS 113.075 is tried to the judge. The Oregon Rules of Civil Procedure and the Oregon Evidence Code apply to contested issues in probate proceedings (ORS 111.200). |
| Typical cost | UNVERIFIED. Neither the Oregon Judicial Department nor the Oregon State Bar publishes an official cost range for a contested will case. Costs are driven by attorney hourly rates and expert/deposition expense; in a civil case in Oregon attorney fees are recoverable only when a statute or contract authorizes them (ORCP 68), so each side generally pays its own fees. Check with a licensed Oregon attorney for an estimate on a specific estate. |
The Deadline to Contest a Will in Oregon
The window is short in some states and long in others, and it is measured from a specific event rather than from the day you learned about the will. That is why the first thing to find out is the date the will was admitted and whether you received formal notice. If the deadline has not run, everything else on this page is available to you.
If it has, the remaining options are narrow and usually involve proving you never got the notice the law required.
Grounds to Contest a Will in Oregon
Under ORS 113.075(1) an interested person may contest on the ground that the will offered is ineffective in whole or in part, that a different will exists that was not alleged in the petition, or that the decedent contracted to make/revoke (or not revoke) a will or to die intestate.
Oregon case law recognizes these substantive grounds for a will being “ineffective”: lack of testamentary capacity (ORS 112.225 — testator must be 18 or older, or lawfully married, and of sound mind); undue influence; fraud; duress or coercion; improper execution / failure of statutory formalities (ORS 112.235 — signed by testator and attested by 2 competent witnesses); forgery; and revocation (ORS 112.285). Mistake alone is generally not an independent ground.
Who has to prove what: The proponent of the will carries the initial burden of proving due execution and testamentary capacity to admit the will; a self-proving affidavit under ORS 113.055 satisfies this ex parte. Once the will is admitted, the contestant carries the burden of proof, by a preponderance of the evidence, on the alleged defect (undue influence, fraud, incapacity, etc.).
On undue influence, Oregon follows In re Reddaway’s Estate: if the contestant proves a confidential relationship between the beneficiary and the testator plus suspicious circumstances (such as the beneficiary’s participation in procuring or drafting the will, secrecy, haste, an unnatural disposition, lack of independent advice), an inference/disputable presumption of undue influence arises and the burden of going forward shifts to the beneficiary to produce evidence of fairness.
Under the harmless-error statute ORS 112.238, a writing that does not meet execution formalities may still be treated as a will only on clear and convincing evidence that the decedent intended it as their will (applies to decedents dying on or after 03/14/2016).
Who Can Contest a Will in Oregon
“Interested persons” only. ORS 111.005(19) defines an interested person to include heirs, devisees, children, spouses, creditors, and any others having a property right or claim against the estate of the decedent that may be affected by the proceeding, and fiduciaries representing interested persons.
Oregon courts read this to require an actual property right or claim that the proceeding could affect — so beneficiaries under a prior or later will, intestate heirs who would take if the will fell, and creditors with an affected claim can qualify; a person whose position would not improve if the contest succeeded generally lacks standing.
Being unhappy with the will is not standing; losing something because of it is. Check the earlier will and the intestate rules for Oregon before filing, because they decide whether you are an interested person.
No-Contest Clauses in Oregon
YES — enforceable, with narrow exceptions. ORS 112.272 states that an in terrorem clause (a provision reducing or eliminating a devise if the devisee contests the will) is valid and enforceable, and that the court SHALL enforce it even if the devisee proves there was probable cause for the contest. Oregon is therefore stricter than most states: there is no general probable-cause or good-faith safe harbor.
The court shall NOT enforce the clause where the devisee establishes probable cause to believe the will (or the relevant portion) is a forgery or was revoked, and the clause does not reach mere objections to the personal representative’s acts in administration, requests for construction/interpretation, or certain other proceedings identified in the statute. ORS 112.272 is not a complete codification — common law still governs where not inconsistent.
The Steps to Contest a Will in Oregon
Step one is the deadline check above. Step two is evidence: the medical records around the signing date, the names of the witnesses, the drafting lawyer’s file, and the financial records that show who benefited. Step three is the filing — A “petition” contesting the will, filed in the existing probate proceeding in the estate’s case file (ORS 113.075(2)).
Exception: a claim under ORS 113.075(1)(c) — a contract to make, revoke, or not revoke a will — may be commenced as a separate civil action in any court of competent jurisdiction. Objections to a will offered but not yet admitted are also raised by petition/objection in the same probate case..
Step four is discovery and, in most cases, a settlement conference; the small minority that reach trial are decided by the judge.
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Settling Instead of Fighting
YES — Oregon permits negotiated resolution. There is no will-specific “family settlement agreement” statute for decedents’ estates, but a contest may be resolved by stipulation among the interested persons and closed by a judgment of final distribution under ORS 116.113, which is binding on all interested persons; distribution may be made under a settlement rather than under the will’s literal terms if the affected parties agree and the court approves.
Mediation is available under the Oregon Mediation Act, ORS 36.100 to 36.238, and ORS 36.185 to 36.210 protect mediation confidentiality; many circuit courts refer contested probate matters to mediation. (For trusts, ORS 130.045 separately authorizes nonjudicial settlement agreements — that provision applies to trusts, not to wills.)
Other Oregon rules: (1) No ante-mortem/pre-death will validation in Oregon — a will cannot be judicially validated during the testator’s lifetime. (2) Oregon’s in terrorem statute (ORS 112.272) is unusually strict: probable cause for the contest does NOT save the devisee’s gift, except for a contest based on probable cause to believe the will is a forgery or was revoked.
(3) Self-proving affidavit under ORS 113.055 lets an attesting witness’s affidavit substitute for live testimony on ex parte review, and it carries the same weight as in-court testimony. (4) Harmless-error doctrine, ORS 112.238 (effective 03/14/2016): a defectively executed writing can still be given effect as a will on clear and convincing evidence of testamentary intent — this cuts against improper-execution contests.
(5) The 4-month clock is triggered by the ORS 113.145 mailed notice, so an heir who was never given that notice may still be within time long after the will was admitted. (6) Six rural counties use county courts, not circuit courts, for probate (ORS 111.075). (7) No jury in a will contest (ORS 111.205).
(8) Two witnesses required for execution (ORS 112.235); Oregon does not recognize holographic or nuncupative wills.
The Evidence That Wins or Loses a Will Contest
Capacity cases turn on the weeks around the signing: the medical chart, prescriptions, a dementia diagnosis, and what the drafting lawyer and the witnesses saw that day. A will signed in a lawyer’s office with two disinterested witnesses and a self-proving affidavit is hard to attack; a will signed at a kitchen table with the main beneficiary present is not.
Undue influence cases turn on the relationship — who drove the parent to the appointment, who chose the lawyer, who was in the room, and whether the new will departed sharply from earlier ones and from what the parent said to other people.
Improper execution is the narrowest ground and the cleanest: Oregon sets exact witness and signature rules, and a will that misses them fails regardless of what the signer intended. Before you contest a will in Oregon, gather the prior wills, the medical releases, and the names of everyone at the signing.
Most of that evidence has to be requested formally once the case is filed, and the deadline does not wait for it.
What to Expect When You Contest a Will in Oregon
A will contest is a lawsuit about the document, not about fairness. When you contest a will in Oregon, the court asks whether the person who signed it had capacity, signed it freely, and signed it correctly. It does not ask whether the split was reasonable. That is why the strongest cases rest on medical records and witness accounts from the weeks around the signing.
Most families who contest a will in Oregon settle. Courts encourage it, many states have family settlement rules that let the heirs agree to a different division, and a settlement avoids the cost and delay of trial. The deadline, the grounds, and the no-contest clause above are the three facts that set your bargaining position before any of that begins.
You don’t have to do this alone
If you are settling a loved one’s estate in Oregon, your state’s probate court self-help center and free legal-aid offices can walk you through the process at no cost. For an active probate or a deadline, talk to a licensed probate attorney in your state.
Key Takeaways: Contest a Will in Oregon
- The deadline is everything: the window to contest a will in Oregon closes on a fixed schedule, and the court cannot reopen it for a late but valid claim.
- Grounds are specific: you contest a will in Oregon on capacity, undue influence, fraud, duress, or bad execution, never on unfairness alone.
- Standing first: only an interested person can contest a will in Oregon; check whether you inherit under the prior will or the intestate rules.
- Read the no-contest clause: whether the state enforces it decides how much risk it takes to contest a will in Oregon.
- Evidence is medical and financial: records, witnesses to the signing, and the drafting lawyer’s file decide most cases when you contest a will in Oregon.
- Settlement is common: most families who contest a will in Oregon settle before trial, often through the state’s family settlement rules.
- Find the admission date: the day the will was admitted is the day the clock to contest a will in Oregon usually starts.
- Prior wills matter twice: they give you standing to contest a will in Oregon and show how far the last will departed from the pattern.
- Notice defects are a lifeline: if you never got the required notice, you may still contest a will in Oregon after the ordinary deadline.
- Self-proved wills are harder: a will with a notarized witness affidavit raises the bar to contest a will in Oregon on execution grounds.
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Official Oregon Sources & Resources
- Oregon Probate Court: https://www.courts.oregon.gov/courts/multnomah/go/pages/probate.aspx (Oregon Judicial Department probate information; each circuit court has its own probate self-help and forms page under https://www.courts.oregon.gov)
- Oregon Will Contest Statute: https://www.oregonlegislature.gov/bills_laws/ors/ors113.html (ORS 113.075, will contest) — see also https://www.oregonlegislature.gov/bills_laws/ors/ors112.html (ORS 112.272 in terrorem clauses; ORS 112.225–112.238 capacity and execution) and https://www.oregonlegislature.gov/bills_laws/ors/ors111.html (ORS 111.005 definitions; ORS 111.085 jurisdiction; ORS 111.205 no jury)
- Internal Revenue Service — Estate Tax: irs.gov
- Cornell Legal Information Institute: law.cornell.edu/wex
This Oregon guide was last verified against official sources in September 2026. Laws change — verify with your state court or a licensed attorney.
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Disclaimer: This guide is informational only and is not legal or tax advice. Estate, probate, and tax laws change and vary by state and county. Verify current rules and dollar figures with your state’s court, statute, or a licensed attorney or tax professional before acting. For urgent matters like an active probate or a tax deadline, consult a licensed professional in your state right away.