SAD in EU Customs: Transit Procedures

Trade Documents 24 Sept 2026 10 min read

Quick answer

The Single Administrative Document (SAD) is a standard customs declaration form used across the EU for various customs procedures, including transit. It is essential for businesses involved in moving goods under Union transit procedures, especially when electronic systems fail or paper-based declarations are required.

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Key takeaways

The SAD is the standard customs declaration form used in EU transit procedures and other customs formalities ^[1].
It is used both electronically and in paper form, especially under business continuity procedures when electronic systems are unavailable ^[1:1].
The SAD consists of eight copies and may be supplemented by continuation sheets or loading lists as integral parts ^[2].
Accurate completion of the SAD is critical, with specific data elements required, including consignor, consignee, goods description, and transit details ^[3].
When used for successive customs procedures, the declarant must verify and, if necessary, update the data on the SAD ^[4].
The SAD differs from other transit documents like the Transit Accompanying Document (TAD) but may be supplemented by them in certain cases ^[1:2].
Obligations include timely notification of goods arrival and proper handling of the SAD copies by authorised consignors and consignees ^[5].

What is the Single Administrative Document (SAD)?

The Single Administrative Document (SAD) is a harmonised customs declaration form used throughout the European Union for customs declarations related to import, export, transit, and other customs procedures. It serves as the principal document for declaring goods to customs authorities in the EU single market. The SAD facilitates uniformity and simplification in customs formalities by standardising the data required and the format of the declaration.

The SAD is designed to be used both electronically and in paper form, depending on the procedural context and the availability of electronic systems. It comprises eight copies to cover the needs of all parties involved in the customs procedure and may be supplemented by continuation sheets or loading lists that form an integral part of the declaration ^[2:1].

In transit procedures, the SAD is the primary document used to declare goods moving under the Union transit system, including T1, T2, or T2F procedures, which cover non-Union goods, Union goods, and Union goods under fiscal suspension, respectively ^[3:1].

When is the SAD used in EU Customs?

The SAD is used in a variety of customs procedures in the EU, including but not limited to:

Import and export declarations.
Transit declarations under the Union transit procedure.
Declarations for customs warehousing and other special procedures.
Successive customs procedures where goods move from one customs regime to another.

Specifically, in transit procedures, the SAD is used as the transit declaration form. It is mandatory for holders of the transit procedure, such as authorised consignors, to lodge transit declarations using the SAD or its electronic equivalent. The use of the SAD ensures that all parties involved in the transit operation recognise the declaration, avoiding problems at customs offices of transit, destination, and authorised consignees ^[1:3].

In cases where electronic transit systems or connections fail, the SAD is used under business continuity procedures as a fallback to maintain the flow of goods. Paper-based SADs printed on plain paper by the economic operator’s computerised system are also permitted in such situations ^[1:4].

Additionally, the SAD is used when the transit procedure is preceded or followed by other customs procedures. In such cases, subsets of the SAD copies are presented to complete formalities for the transit and the preceding or subsequent customs procedures ^[2:2].

SAD for Business Continuity Procedures

Business continuity procedures come into effect when there is a temporary failure of electronic transit systems or the computerised systems used by holders of the transit procedure for lodging declarations electronically. Under such circumstances, the SAD plays a critical role in ensuring uninterrupted customs transit operations.

The transit declaration used in business continuity procedures must be recognisable by all parties involved in the transit operation. To this end, the documents permitted include:

The Single Administrative Document (SAD).
A SAD printed on plain paper by the economic operator’s computerised system.
The Transit Accompanying Document (TAD) or Transit/Security Accompanying Document (TSAD), supplemented if necessary by a List of Items (LoI) or Transit/Security List of Items (TSLoI) ^[1:5].

The transit declaration may be supplemented by continuation sheets, which form an integral part of the declaration. Loading lists complying with the relevant annexes may also be used instead of continuation sheets as the descriptive part of the transit declaration ^[1:6].

Authorised consignors may be exempted by the customs authority from signing transit declarations bearing the special stamp if they have provided a written undertaking acknowledging their responsibility as holders of the procedure for all transit operations under such declarations ^[5:1].

Authorised consignees have the obligation to inform the customs office of destination without delay upon arrival of goods, indicating the date of arrival, condition of seals, and any irregularities on the relevant copies of the SAD or accompanying documents ^[5:2].

SAD for Paper-Based Declarations

While electronic declarations are the norm under the Union Customs Code, paper-based customs declarations using the Single Administrative Document remain relevant in specific contexts, including business continuity and certain successive customs procedures.

Paper-based customs declarations must be presented in subsets containing the number of copies required for completing formalities related to the customs procedure under which the goods are placed. When the transit procedure is preceded or followed by another customs procedure, a subset containing copies needed for both procedures may be presented ^[2:3].

The full set of the SAD consists of eight copies. Continuation forms, if used, must also be presented in the necessary number of copies to complete the formalities and form an integral part of the SAD ^[2:4].

The notes for paper-based customs declarations established on the basis of the SAD are detailed in the relevant annexes of the implementing regulations, ensuring standardisation and clarity for customs authorities and economic operators ^[2:5].

The use of paper-based customs declarations is subject to specific rules, including the verification of data accuracy and the responsibility of each party involved for the data relating to the procedure for which they are declarants or holders of the transit procedure ^[4:1].

Filling Out the SAD: Key Data Elements

Completing the Single Administrative Document accurately is essential for compliance and smooth customs processing. The SAD includes numerous boxes requiring detailed information, some of which are critical for transit procedures.

Key data elements to be completed include:

Identification of the procedure: The upper part of the relevant boxes should indicate the transit procedure type, such as ‘T1’, ‘T2’, or ‘T2F’ ^[3:2].
Serial number: Each item on a loading list accompanying the transit declaration must have a serial number ^[3:3].
Marks, numbers, number and kind of packages, and goods description: These particulars must be given in accordance with the detailed rules set out in the relevant annexes of the Union Customs Code ^[3:4].
Country of dispatch/export: The Member State from which the goods are consigned or exported must be indicated ^[3:5].
Gross mass (kg): The gross mass of the goods must be entered, consistent with the data in the relevant SAD box ^[3:6].

Additional data elements include the consignor and consignee identification, commodity codes, net mass, and any certificates or authorisations relevant to the goods. The SAD may also incorporate continuation sheets or loading lists to provide comprehensive descriptive information about the goods ^[1:7]^[3:7].

Responsibilities for SAD Data Accuracy

The accuracy of the data entered on the Single Administrative Document is a shared responsibility among the parties involved in the customs procedure.

When the SAD is used for successive customs procedures, each party is liable only for the data relating to the procedure for which they act as declarant or holder of the transit procedure. Before lodging a declaration based on an SAD issued during a preceding customs procedure, the declarant must verify the accuracy and applicability of the existing data and supplement it as necessary ^[4:2].

If discrepancies are found between the goods and the data on the SAD, the declarant must immediately inform the customs office where the declaration is lodged and prepare a fresh declaration on new copies of the SAD ^[4:3].

Customs authorities will verify that the data provided in declarations relating to various successive procedures are consistent and accurate ^[4:4].

Authorised consignors may be granted waivers from signing transit declarations bearing special stamps if they have acknowledged their responsibility as holders of the transit procedure. Authorised consignees must report the arrival of goods without delay and provide information on seals and irregularities on the relevant SAD copies ^[5:3].

SAD and Successive Customs Procedures

In many cases, goods passing through the EU customs territory are subject to successive customs procedures. The Single Administrative Document is designed to accommodate such scenarios by allowing subsets of the SAD copies to be used for different procedures.

When the Union transit procedure or the common transit procedure is preceded or followed by another customs procedure, subsets containing the number of copies required for the transit procedure and the preceding or following procedure may be presented together ^[2:6].

Each party involved in successive procedures is responsible for the accuracy of the data relating to their specific procedure. When using an SAD issued during a preceding procedure, the declarant must verify the data and update it if necessary before lodging the new declaration ^[4:5].

Customs authorities ensure that the data across the various declarations for successive procedures are consistent and correspond to the goods in question ^[4:6].

SAD vs. Other Transit Documents

While the Single Administrative Document is the primary customs declaration form used for transit procedures in the EU, other transit documents exist and may be used in specific contexts.

The Transit Accompanying Document (TAD) and the Transit/Security Accompanying Document (TSAD) are alternative documents that may be used, particularly under business continuity procedures or when supplemented by Lists of Items (LoI) or Transit/Security Lists of Items (TSLoI) ^[1:8].

The SAD is distinctive in that it serves as the formal customs declaration and is structured with eight copies and detailed data boxes. In contrast, TAD and TSAD are accompanying documents that support the transit declaration and may be used when electronic systems are unavailable or as supplements to the SAD ^[1:9].

Authorisations for the use of electronic transport documents as transit declarations exist for maritime transport under specific conditions, but the SAD remains the standard paper-based or electronic declaration in most transit operations ^[6].

Next steps

Confirm whether your transit operations require the use of the Single Administrative Document or an alternative transit document.
Verify the completeness and accuracy of all key data elements on the SAD, including consignor, consignee, goods description, and transit procedure codes.
Prepare the required number of SAD copies and any necessary continuation sheets or loading lists for your customs procedure.
Ensure that all parties involved in successive customs procedures review and update the SAD data relevant to their part of the operation.
Notify the relevant national competent authority promptly in case of discrepancies or irregularities during transit.

FAQ

What are some examples of administrative documents?
Administrative documents in customs include the Single Administrative Document (SAD), Transit Accompanying Document (TAD), Transit/Security Accompanying Document (TSAD), and Lists of Items (LoI). These documents support customs formalities and declarations ^[1:10].

How many boxes are in a Single Administrative Document?
The SAD contains numerous boxes for data elements. Specific box numbers are referenced for different data elements, such as box 31 for packages and description of goods, box 35 for gross mass, and box 40 for summary declaration or previous document references ^[3:8].

What are administrative documents?
Administrative documents are standardised forms used to declare goods to customs authorities and support customs procedures. They ensure uniformity and compliance with customs regulations within the EU single market ^[1:11].

Do I need a CN22 or CN23?
CN22 and CN23 are postal customs declaration forms used for small parcels and postal shipments. They are different from the Single Administrative Document used for customs transit procedures in the EU and are generally not applicable for commercial transit operations ^[1:12].

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