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

Reporting obligations

Who must declare, which sales, within what time and through which channel: the reporting regime of the art market.

Updated : October 28, 2026· 3 min read

Declaring is simple if you know what, when and how

Seal Color Box (1662–1722)
Seal Color Box (1662–1722)

The reporting obligations of Directive 2019-04 rest on a simple rule: every significant sale made by an operator is declared within thirty days. But you still need to know what is "significant", who declares and through which channel.

This page answers these questions, presents the content of a declaration and indicates the consequences of lateness or omission.

It is aimed at operators, but also at private individuals who sell through them.

  • Declaration
  • Thresholds
  • Time limits

Reporting obligations in figures

30 daysDeclaration deadline
€1,000Declaration threshold for online sales
96%Declarations on time
38,000Declarations received in 2024

Source: OIMAP Legal Affairs Department.

Breakdown

Declarations on time96%
Late declarations3%
Omissions found1%

Compliance with declaration deadlines in 2024.

What must be declared

Sales made by an operator above the threshold for its category are to be declared: €1,000 for online sales, €5,000 for gallery sales and €2,000 for auction sales. Sales below these thresholds are counted together.

The declaration includes: the operator's identifier, the date, the description of the work (with its OIMAP number if registered), the price excluding fees, the fees, the currency, and the buyer's and seller's countries. The identity of the parties is kept in the register but not transmitted.

Noble: Henry VI in Ship with Shield of Arms (obverse); Ornamental Cross with Lis Terminals (reverse) (1422–61)
Noble: Henry VI in Ship with Shield of Arms (obverse); Ornamental Cross with Lis Terminals (reverse) (1422–61)
The Auction House:  The Town Crier, Honoré Daumier (1864, printed 1920)
The Auction House: The Town Crier, Honoré Daumier (1864, printed 1920)
Solidus of Justinian I  (c. 545–65)
Solidus of Justinian I (c. 545–65)

Declaration channels

The main route is the Desk portal, which offers a simple form, data import from a spreadsheet and an automated interface for the most active operators. A paper declaration remains possible in States whose administration is not yet connected.

A receipt is issued for each declaration. It is proof that the obligation has been met and must be kept with the sale file.

Declarations in the service of statistics

Declarations are the basis of the Observatory's statistics. Without them, neither the world index, nor the top 10, nor the reports on regions and segments could be produced. Each operator thus contributes, by an administrative act, to a common information asset.

The Observatory sends operators a personalised dashboard that compares their sales with those of their segment. This appreciated return encourages punctual declarations.

Thresholds and deadlines by type of sale

Applicable thresholds
Type of saleDeclaration thresholdDeadline
Auction sale€2,00030 days
Sale in a gallery or by a dealer€5,00030 days
Online sale€1,00030 days
Private sale through an intermediary€5,00030 days

Landmarks

  1. Sale

    Date of the transaction.

  2. Reconciliation

    Internal check.

  3. Sending

    Declaration to the portal.

  4. Deadline

    End of the period.

Lateness and omission

Manual or automated declaration

Plaque (1500s–1600s)

Manual

Portal form
  • Simple
  • Suited to small volumes
  • Entry for each sale

For small operators.

Electrotype Replica of Tetradrachm: Head of Athena (obverse); Owl (reverse) (1838–1916)

Automated

IT interface
  • Quick
  • Few errors
  • Technical set-up

For large volumes.

An Old Clothes Shop, Seven Dials, John Thomson (1877)
An Old Clothes Shop, Seven Dials, John Thomson (1877)
Medal Depicting Gian Lorenzo Bernini (1598-1680) from the Illustrious Men of the Kingdom of the Two Sicilies (obverse), V. Catenacci (1830–34)
Medal Depicting Gian Lorenzo Bernini (1598-1680) from the Illustrious Men of the Kingdom of the Two Sicilies (obverse), V. Catenacci (1830–34)
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)

Declaring a sale

  1. Gather

    Collect the information on the sale.

  2. Refer

    Complete the form.

  3. Confirm

    Check the data.

  4. Send

    Transmit to the portal.

  5. Keep

    Archive the receipt.

Before declaring

An accountant

Tetradrachm: Head of Alexander (obverse); Athena (reverse) (297–281 BCE)
« Declarations are simpler than people fear. What costs is not having a process. »
Laurent Vidal, chartered accountant

Vocabulary of declarations

Threshold
Amount from which an obligation applies.
Receipt
Proof of filing a declaration.
Flat-rate penalty
Sanction of a fixed amount.
Automated interface
Direct connection between software.

Frequently asked questions

Who declares if the sale goes through a house?

The house, in the seller's name.

Must sales abroad be declared?

Yes, if the operator is established in a Member State.

What fees?

Declaration is free of charge.

What sanctions?

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

See the transaction registers

At the Market, Camille Pissarro (late 1800s)

Keeping a compliant register.

Transaction registers
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