Observe · Regulate · Protect — since 2007. 19th OIMAP General Assembly: Singapore, 10–12 June 2026. Programme
Regulation

Buyer's remedies

Free mediation, arbitration and courts: the remedies open to the buyer of a work of art, step by step.

Updated : October 28, 2026· 3 min read

Three levels of remedy

Dr. James Stuart; Mary Campbell Stuart, Gilbert Stuart (c. 1815)
Dr. James Stuart; Mary Campbell Stuart, Gilbert Stuart (c. 1815)

When a dispute arises, the buyer has three levels of remedy: a direct complaint to the seller, OIMAP's free mediation and, as a last resort, arbitration or the courts. Each level has its own time limits, costs and strengths.

Most disputes are settled at the first two levels. In 2024, 78% of the mediations conducted by OIMAP ended in an agreement.

This page describes each step and gives advice on preparing your file.

  • Remedies
  • Mediation
  • Arbitration

Buyer's remedies in figures

78%Mediations ending in agreement
45 daysAverage duration of a mediation
€0Cost of mediation to the buyer
342Disputes resolved since the Tribunal was created

Source: OIMAP Legal Affairs Department.

Breakdown

Agreement in mediation78%
Arbitration14%
National courts8%

Outcome of disputes handled in 2024.

From complaint to mediation

The first step is to send the seller a written complaint, describing the problem, attaching the evidence and proposing a solution. The seller generally has thirty days to reply. Many disputes end there.

Failing agreement, the buyer may refer the matter free of charge to OIMAP mediation, provided that the seller is approved or accepts the procedure. An independent mediator listens to both parties, proposes avenues and helps to formalise an agreement.

Yokkaichi: View of the Mie River, from the series The Fifty-Three Stations of the Tōkaidō, Utagawa Hiroshige (c. 1833–34)
Yokkaichi: View of the Mie River, from the series The Fifty-Three Stations of the Tōkaidō, Utagawa Hiroshige (c. 1833–34)
Portrait of Georges Arnold Fitzwilliam, Charles Balthazar Julien Fevret de Saint-Mémin (c. 1790–1852)
Portrait of Georges Arnold Fitzwilliam, Charles Balthazar Julien Fevret de Saint-Mémin (c. 1790–1852)
Plate: Diana and Acteon, Maestro Giorgio Andreoli (1522)
Plate: Diana and Acteon, Maestro Giorgio Andreoli (1522)

Arbitration and the courts

If mediation fails, the buyer may bring the matter before the OIMAP Arbitral Tribunal, whose decisions are recognised in Member States. Arbitration is confidential, faster than a trial — about six months — and conducted by art specialists.

It remains possible to apply to the competent national court, particularly where the seller is not subject to arbitration. Limitation periods vary from State to State; it is prudent to consult a lawyer so as not to let them expire.

Learning from disputes

Every dispute handled is a lesson. OIMAP publishes each year an anonymised summary of mediations and awards, with the most frequent problems and good prevention practices. Operators find in it material to improve their descriptions and their conditions of sale.

This feedback loop contributes to the steady fall in the dispute rate. It illustrates a conviction of the organisation: the best consumer protection is informing the seller.

The three levels

A staircase of remedies
LevelDurationCostStrength
Direct complaint30 daysFreeAmicable agreement
OIMAP mediation45 daysFree for the buyerSigned agreement
OIMAP arbitration6 monthsArbitration feesDecision recognised in Member States
National courtsVariableTrial costsEnforceable judgment

Landmarks

  1. Finding

    Discovery of the problem.

  2. Complaint

    Sending of the letter.

  3. Mediation

    Referral to OIMAP.

  4. Agreement or failure

    End of the mediation.

  5. Arbitration

    Tribunal's decision.

Time limits run

Mediation or trial

The Calumny of Apelles, Giorgio Ghisi (1560)

Mediation

Negotiated agreement
  • Quick
  • Free
  • Confidential

To be preferred.

Creamer, Louis Rorimer (c. 1910)

Trial

Imposed decision
  • Longer
  • More expensive
  • Public

As a last resort.

Portrait Head of a Noble or Official (175–200 CE)
Portrait Head of a Noble or Official (175–200 CE)
Painting Enthusiasts at Auction House Bouillon, Honoré Daumier (1862, printed 1920)
Painting Enthusiasts at Auction House Bouillon, Honoré Daumier (1862, printed 1920)
The Antechamber of the Palace of Justice, Paris, Charles Meryon (1855)
The Antechamber of the Palace of Justice, Paris, Charles Meryon (1855)

Preparing your remedy

  1. Gather

    Collect all the documents.

  2. Write

    Set out the facts clearly.

  3. Quantify

    Estimate the loss.

  4. Propose

    Suggest a solution.

  5. Refer

    Choose the suitable route.

Supporting papers

A mediator

Vanity Case (Nécessaire) (c. 1760)
« In mediation, there is rarely a winner and a loser. There are two people who want to find a common path again. »
Isabelle Fournier, approved mediator

Vocabulary of remedies

Limitation period
Time after which an action is no longer possible.
Arbitral award
Decision of an arbitral tribunal.
Enforceable
Capable of being enforced.
Mediator
Neutral third party facilitating an agreement.

Frequently asked questions

Is mediation mandatory?

No, but it is strongly recommended.

How much does arbitration cost?

Depending on the amount in dispute: see Arbitration.

Can I be assisted?

Yes, by a lawyer or an association.

Where can I find a referral form?

On the Desk portal.

Useful documents

Contacts

A Palace with an Arched Bridge (A Roman Villa), Hubert Robert (1760)
A Palace with an Arched Bridge (A Roman Villa), Hubert Robert (1760)
Legal Affairs DepartmentParis — Headquarters+33 1 00 00 02 00juridique@oimap.exampleMonday to Friday, 9 am – 5 pm

Discover the recommendations to States

Portrait of a Man, Nicholas Freese (c. 1795–1800)

How States can better apply the texts.

Recommendations to States
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