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

Sales disputes

Non-payment, late delivery, non-conformity, costs: art sales disputes and their settlement before the TAO.

Updated : October 28, 2026· 3 min read

The heart of the business

At the Market, Camille Pissarro (late 1800s)
At the Market, Camille Pissarro (late 1800s)

Sale is the most frequent contract of the market. Whether concluded at auction, in a gallery, privately or online, it can give rise to disagreements about price, delivery, conformity or costs. These disputes are the first source of cases for the TAO.

They account for 17% of all requests. Most are settled quickly, by an expedited procedure or by mediation.

This page presents the usual causes, the applicable rules and the means of prevention.

  • Sale
  • Payment
  • Delivery

Sales disputes in figures

17%Share of requests
6 monthsExpedited procedure
70%Agreements in mediation
€250,000Threshold for the expedited procedure

Source: Registry of the OIMAP Arbitral Tribunal.

Breakdown

Non-payment34%
Non-conformity26%
Late delivery22%
Costs and commissions18%

Subjects of sales disputes.

Payment and delivery

The first subject of dispute is payment of the price: delays, refusal to pay after the hammer falls, challenges to the amount of costs. The second is delivery: delay, loss in transit, poorly defined transfer of risk. Incoterms and conditions of sale specify the moment of transfer.

The tribunal examines the date of transfer of ownership and risk, insurance obligations and proof of delivery. It awards default interest and may order specific performance or termination.

Dr. James Stuart; Mary Campbell Stuart, Gilbert Stuart (c. 1815)
Dr. James Stuart; Mary Campbell Stuart, Gilbert Stuart (c. 1815)
Chemin de fer de Toulouse à Bayonne. Pont de l'Aran (en trois arches de 17m d'ouverture chacune). Situation des travaux au 21 juillet 1861, Édouard Baldus (1861)
Chemin de fer de Toulouse à Bayonne. Pont de l'Aran (en trois arches de 17m d'ouverture chacune). Situation des travaux au 21 juillet 1861, Édouard Baldus (1861)
The Judgment of Solomon and Esther before Ahasuerus (pair), Dirk Vellert (c. 1530)
The Judgment of Solomon and Esther before Ahasuerus (pair), Dirk Vellert (c. 1530)

Conformity and costs

Non-conformity concerns the gap between the work delivered and the description: dimensions, condition, technique, restorations. Sale costs (commission, taxes, transport costs) are also a source of disagreement when the conditions of sale are poorly understood.

Auction houses are subject to a requirement of transparency: faithful description, mention of major restorations, itemised costs. Buyers must examine the work and ask their questions before the auction.

Online and private sales

Online sales raise specific questions: consent, proof of the order, any right of withdrawal, compliance with time limits. Platforms approved by OIMAP undertake to keep evidence and to offer arbitration.

Private sales, often concluded between professionals by email, must be formalised: agreement on the thing and the price, mention of the arbitration clause. Informal exchanges are a frequent source of disputes.

Prevention tips

Draft clear conditions of sale and specify the applicable law. Always ask for written confirmation of a private sale. Check your counterparty's solvency for large amounts. Insure works during transport.

For high-value sales, consider an escrow or payment by letter of credit. These mechanisms considerably reduce the risk of non-payment.

Causes and solutions

Four causes
CauseFrequent solutionTime limit
Non-paymentOrder to pay the price plus interest5 months
Late deliveryDamages6 months
Non-conformityPrice reduction7 months
Challenge to costsApplication of the conditions of sale5 months

Milestones

  1. Sale

    Agreement.

  2. Payment due

    Usual time limit.

  3. Formal notice

    Reminder.

  4. Requête

    Expedited procedure.

Give formal notice before bringing a case

Views:  The Market on the Molo, Antonio Canaletto (1735–1746)
Views: The Market on the Molo, Antonio Canaletto (1735–1746)
Sketches in Belgium and Germany, Volume I: Hall of Justice of the Magistrates du Franc, Bruges, Louis Haghe (1840)
Sketches in Belgium and Germany, Volume I: Hall of Justice of the Magistrates du Franc, Bruges, Louis Haghe (1840)
Mercury (Budha), from a Mandi Astrology Series, Sanju (c. 1810)
Mercury (Budha), from a Mandi Astrology Series, Sanju (c. 1810)

Auction sale or private sale

The Antechamber of the Palace of Justice, Paris, Charles Meryon (1855)

Auction

Auction house
  • Regulated general conditions
  • Defined costs
  • Minutes

Structured framework.

An Old Clothes Shop, Seven Dials, John Thomson (1877)

Private sale

Direct negotiation
  • Flexibility
  • Contract to be formalised
  • Proof more delicate

Higher risk of disputes.

Reacting to non-payment

  1. Chase

    Written reminder.

  2. Give formal notice

    Dated letter.

  3. Propose

    Mediation.

  4. Refer

    Expedited request.

  5. Enforce

    Exequatur.

Preparing your file

An auctioneer

The Auction House:  The Town Crier, Honoré Daumier (1864, printed 1920)
« Most unpaid invoices are settled on formal notice; the others are settled faster when the contract provides for arbitration. »
Hélène Garnier, auctioneer

Vocabulary of sale

Hammer
Award of a lot to the bidder.
Incoterm
Rule allocating costs and risks of transport.
Compulsory enforcement
Compulsion to perform.
Default interest
Sum due for late payment.

Frequently asked questions

Is non-payment frequent?

It accounts for a third of sales disputes.

May I request urgent measures?

Yes.

Are costs reimbursed?

According to the award.

Where can I see deposits?

Useful documents

Contacts

The Doge's Palace, Venice, Richard Parkes Bonington (1826)
The Doge's Palace, Venice, Richard Parkes Bonington (1826)
Registry of the Arbitral Tribunal (TAO)Paris — Head Office+33 1 00 00 04 00greffe.tao@oimap.exampleMonday to Friday, 9 a.m. – 5 p.m.

See deposit disputes

Seal Color Box (1662–1722)

Custody and restitution.

Deposits
Image credits (16)
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