What's the Best Way to Contest a Will in Slovenia? Grounds, Deadlines, Probate Court Steps & Costs (2026)

If you are an heir, a surviving spouse, or a family member who believes a last will in Slovenia is invalid, time-sensitive deadlines make it essential to understand your options before assets are distributed. What’s the best way to contest a will under Slovenian law? In short, you need to establish legal standing, identify a recognised ground (such as lack of capacity, undue influence, or a formal defect), and file your challenge in the competent probate court within the statutory deadline, which, following the 2024 amendments to the Zakon o dedovanju (ZD‑D, Uradni list RS 102/2024), is six months for certain procedural notices.

This guide maps every step of the contesting a will timeline, from preserving evidence and entering a caveat through to judgment, costs and remedies, so that you can act with confidence.

Who Has Standing to Challenge a Will in Slovenia?

Not everyone can contest a will. Slovenian succession law limits standing to persons with a legally recognised interest in the estate. Before investing time and money in a challenge, you need to confirm that you fall within one of the categories below.

Legal Heirs and Others With a Vested Interest

Under the Zakon o dedovanju (Inheritance Act, consolidated at PISRS), the following persons generally have standing to challenge a will:

• Statutory (intestate) heirs. Descendants, the surviving spouse or partner, parents and, in certain orders of succession, siblings and more remote relatives who would inherit if the will were set aside.
• Beneficiaries under an earlier will. If a previous will named you as a beneficiary and a later will revoked or reduced your share, you may challenge the later document.
• Creditors of the estate. In limited circumstances, creditors whose claims are prejudiced by the will’s provisions may intervene.

Non‑Beneficiaries: The Compulsory Portion

Can someone contest a will if they are not named in it? Yes, provided they are entitled to a compulsory portion (nujni delež). The Zakon o dedovanju guarantees descendants and the surviving spouse a minimum share of the estate. If the will excludes or under-provides for them, they can bring a claim to reduce testamentary dispositions to the extent necessary to restore their compulsory portion. This is a distinct legal action from challenging validity, but it is frequently raised alongside a will contest.

Grounds to Contest a Will in Slovenia

Slovenian law recognises several grounds on which a will may be declared wholly or partly invalid. Understanding which ground applies is critical because each one requires different evidence and carries different practical implications for how you contest a will.

Lack of Testamentary Capacity

A will is invalid if the testator lacked the mental capacity to understand the nature and effect of the document at the time it was made. Conditions such as advanced dementia, severe psychiatric illness, or heavy sedation may support this ground. Evidence typically includes medical records from the testator’s GP and hospital, an expert psychiatric report reconstructing the testator’s mental state, and testimony from persons who interacted with the testator around the relevant date.

Undue Influence and Duress

If someone coerced, manipulated, or exerted disproportionate pressure on the testator, the resulting will may be set aside. Courts look for patterns: isolation of the testator from other family members, a sudden change in testamentary intentions close to death, and active involvement of the beneficiary in procuring the will. Witness statements, correspondence, call logs and evidence of the testator’s dependence on the alleged influencer are all relevant.

Formal Defects

A last will in Slovenia must comply with strict formal requirements. A handwritten (lastnoročna) will must be entirely in the testator’s own handwriting and signed. A notarial will must be executed in the presence of the notary in accordance with prescribed procedure. A will before witnesses requires two qualified witnesses. Where any of these formalities is missing, for instance, a missing signature, an unsigned notarial deed, or an improperly witnessed document, the will is void as a matter of law.

Fraud, Forgery and Revocation Issues

A will procured by fraud (for example, by deceiving the testator about the identity of a beneficiary) or one that is forged is invalid. Similarly, if a later valid will revoked the contested document and the revocation can be proved, the earlier will falls away. Forensic handwriting and signature examination is often the decisive form of evidence in forgery cases.

Comparison Table: Grounds, Evidence and First Actions

Deadlines and Time Limits, Before and After Probate

How long after probate can a will be challenged in Slovenia? Deadlines are among the most important, and most commonly misunderstood, aspects of contesting a will. Missing a deadline can permanently extinguish an otherwise valid claim.

Pre‑Probate: Entering a Caveat

If you become aware of a death and suspect the will may be flawed, your first step should be to notify the probate court. In Slovenian non-contentious inheritance proceedings (zapuščinski postopek), heirs are typically notified and given an opportunity to raise objections during the probate hearing. Raising an objection at this stage, effectively entering a caveat, can prevent the court from issuing a final inheritance decision while your challenge is pending.

Statutory Limits Under the Amended Zakon o Dedovanju

The 2024 amendments to the Zakon o dedovanju (ZD‑D, Uradni list RS 102/2024) adjusted several procedural timelines. In many cases, the deadline for certain procedural notices and challenges has been reduced to six months. Once the probate court issues its inheritance decision (sklep o dedovanju), heirs who were not present or who dispute the decision typically have a limited window, often measured in days for an appeal of the decision itself, or months for a separate civil action to contest validity, to act.

Industry observers note that the practical effect of the 2024 changes is to accelerate proceedings and incentivise early action. If you believe a will is invalid, waiting until after the inheritance decision is issued makes the challenge significantly harder and more expensive.

Exceptions

Longer limitation periods may apply where the claimant can demonstrate that fraud was concealed or that decisive new evidence has come to light after the original deadline expired. These exceptions are narrowly construed, and the burden of proof is on the challenger.

Step‑by‑Step: How to Contest a Will in Slovenia

Below is a practical roadmap covering the probate court steps from initial preservation through to judgment. Each step should be taken in consultation with a qualified Slovenian civil litigator.

Step 0, Immediate Preservation: Caveat and Evidence

As soon as you suspect grounds exist, notify the competent district court (okrajno sodišče) handling the probate proceedings. Request that the court note your objection on the file. Simultaneously, begin preserving evidence: secure medical records, collect witness contact details, and photograph or copy any relevant documents. For guidance on caveat procedures in other jurisdictions, see how to apply for, or remove, a caveat.

Step 1, Obtain Copies of Key Documents

You will need:

• A copy of the contested will, request this from the probate court or the notary who holds the original.
• The notarial record, if the will was notarial, the notary’s file will contain execution notes.
• The probate file and estate inventory, filed at the district court conducting the probate proceedings.
• Death certificate and proof of your relationship to the deceased (birth certificate, marriage certificate).
• Land-registry extracts and bank statements showing the estate’s assets.

Step 2, Pre‑Action: Contact the Executor and Consider Mediation

Before filing, write to the executor (or other beneficiaries) setting out your concerns and requesting disclosure of relevant documents. In many cases, a well-drafted pre-action letter can prompt negotiations or mediation, avoiding the expense of full litigation. Courts in Slovenia increasingly encourage alternative dispute resolution in probate matters.

Step 3, Filing the Petition

If negotiation fails, file a civil action (tožba) in the competent district court. The petition must identify:

• The parties, you as the claimant, and the beneficiary or beneficiaries who benefit from the contested will as the defendant(s).
• The ground(s), set out clearly which statutory ground applies (capacity, undue influence, formal defect, or fraud).
• The relief sought, typically a declaration that the will is invalid in whole or in part, and any consequential orders (e.g., restoration of compulsory portion).
• The evidence, a list of documents and witnesses you intend to rely on.

You must pay the prescribed court fee when filing. Court fees in Slovenia are calculated on the value of the claim and are set by the Zakon o sodnih taksah (Court Fees Act).

Step 4, Disclosure and Evidence Gathering

After filing, the court will set a timetable for exchange of evidence. This is the stage at which to instruct expert witnesses, for example, a forensic psychiatrist to report on capacity, or a handwriting and signature examiner to report on authenticity. Digital evidence (emails, text messages, social-media activity) is increasingly significant and should be secured and preserved in admissible form.

Step 5, Hearing, Interim Relief and Settlement

The court will schedule one or more hearings. If there is a risk that estate assets will be dissipated before judgment, you can apply for an interim injunction (začasna odredba) to freeze distribution. Settlement remains possible at any point, and judges will often facilitate it. Early indications suggest that a significant proportion of Slovenian will contests settle before a final hearing, particularly where both sides have access to the same expert evidence.

Step 6, Judgment and Post‑Judgment Steps

If the court finds in your favour, it will declare the will invalid (wholly or partly) and may make consequential orders. The losing party may appeal to the higher court (višje sodišče) within the statutory appeal deadline, typically 15 days from service of the written judgment. A probate appeal in Slovenia follows the same procedural rules as other civil appeals, requiring a written submission filed through the first-instance court and payment of an appeal fee.

Costs, Fees, Likely Timelines and Funding Options

Understanding the financial commitment before you contest a will is essential. The figures below are indicative only, actual costs depend on the complexity of the case, the value of the estate, and the conduct of the other parties. Always obtain a written fee estimate from your legal adviser before proceeding.

• Preliminary legal advice. €200–€800 for an initial assessment of your grounds, evidence and prospects.
• Court fees. €100–€1,000 or more, calculated on the value of the claim under the Court Fees Act.
• Expert reports. A forensic psychiatric report typically costs €800–€3,000; a handwriting analysis report may cost €500–€2,000.
• Full contested litigation. €5,000–€40,000+ including legal representation, depending on whether settlement is reached, the number of hearings, and whether an appeal is pursued.

Slovenia applies a general loser-pays principle: the unsuccessful party may be ordered to reimburse the successful party’s reasonable costs and fees. Legal aid (brezplačna pravna pomoč) is available to individuals who meet the statutory financial criteria and can demonstrate a claim that is not manifestly unfounded. Third-party litigation funding is not yet widespread in Slovenia, but conditional-fee arrangements may be negotiable with some law firms.

As for the contesting a will timeline, straightforward cases may resolve in six to twelve months. Complex disputes involving multiple experts and appeals can take two to three years or longer.

Remedies and Outcomes, What Happens if a Will Is Disputed

What happens if a will is disputed and the court upholds the challenge? The court has broad power to shape the outcome:

• Declare the will invalid in whole or in part. If the entire will falls, succession proceeds under the rules of intestacy (Zakon o dedovanju).
• Reinstate an earlier will. If the invalid will revoked a prior valid will, the earlier document may be restored.
• Adjust the compulsory portion. Where a will under-provides for compulsory-portion heirs, the court can order reduction of bequests to restore the minimum statutory share.
• Order return of assets. If assets have already been distributed, the court can order the recipient to return them or pay monetary compensation.
• Direct changes to public registers. Where real property is involved, the court may order amendment of the land register to reflect the corrected succession.

For estates with cross-border elements, the EU Succession Regulation (650/2012) governs recognition and enforcement of succession decisions across EU member states, a factor that may be relevant where assets or heirs are located outside Slovenia.

Practical Tips to Preserve Evidence and Settlement Strategies

Experienced practitioners consistently emphasise the following practical steps for anyone considering whether to contest a will in Slovenia:

• Act immediately. Evidence degrades and witnesses’ memories fade. Request medical records, secure electronic devices and copy relevant documents as soon as possible.
• Preserve digital evidence. Screenshots, backed-up messages and metadata-stamped files carry significant weight in modern probate disputes.
• Commission expert analysis early. A preliminary expert opinion, whether on capacity, handwriting, or document authenticity, helps you assess prospects and strengthens any pre-action negotiation.
• Document everything. Keep a contemporaneous record of all contacts with executors, beneficiaries and the court.
• Consider mediation first. Mediation is quicker and cheaper than litigation. A negotiated outcome also preserves family relationships that adversarial proceedings often damage irreparably.
• File a caveat or objection early. Preventing premature distribution of assets is far easier than recovering them after the fact.

Quick Templates and Forms, Caveat and Petition Checklist

The templates below are samples only. They are provided for general guidance and must be reviewed and adapted by qualified legal counsel before use.

Sample Caveat / Objection Notification

“To the District Court at [court name], Re: Probate of the estate of [deceased’s full name], deceased on [date]. I, [your full name], being a [relationship to the deceased, e.g. son/daughter/spouse], hereby give notice that I object to the validity of the will dated [date of will] and request that the court not issue a final inheritance decision until my objections have been determined. I intend to file a civil action challenging the will on the ground(s) of [briefly state ground]. Signed: [your name], Date: [date].”

Petition Checklist

• Parties. Full names and addresses of claimant(s) and defendant(s).
• Competent court. The district court handling the probate proceedings.
• Grounds. Clear identification of the statutory basis (capacity, undue influence, formal defect, fraud).
• Relief sought. Declaration of invalidity; restoration of compulsory portion; consequential orders.
• Evidence list. Documents, expert reports, witness statements attached or to be produced.
• Court fee. Calculated on the value of the claim and paid upon filing.

Conclusion

The best way to contest a will in Slovenia is to act quickly, gather evidence early, and file within the statutory deadlines set by the Zakon o dedovanju. With the 2024 amendments shortening key procedural windows, delay is the single biggest risk to an otherwise strong claim. Engaging a qualified Slovenian civil litigator at the earliest opportunity gives you the best chance of protecting your rights and reaching a fair outcome.

Sources

1. Uradni list Republike Slovenije, Zakon o spremembah in dopolnitvah Zakona o dedovanju (ZD‑D, Uradni list RS 102/2024)
2. PISRS, Zakon o dedovanju (Inheritance Act, consolidated)
3. Uradni list RS, Zakon o davku na dediščine in darila (Inheritance & Gift Tax Act, ZDDD)
4. European e‑Justice Portal, Succession (Slovenia)
5. Constitutional Court of the Republic of Slovenia, Decision U‑I‑139/24
6. European Court of Human Rights, BREZNIK v. SLOVENIA