Special Customs Procedures: Transit, Bonded Warehouse, ATA Carnet
Special customs procedures explained: transit and TIR, bonded warehouses, temporary admission with ATA carnets and inward processing, with examples.
Key takeaways
- Special procedures suspend duties and taxes while goods move, are stored, used temporarily or processed, and are re-exported.
- Transit lets goods cross a territory or move inland under customs control without paying duties, against a guarantee.
- A bonded warehouse defers duty until goods are sold locally, and avoids it entirely if they are re-exported.
- An ATA carnet replaces the customs declarations and guarantees for samples, exhibition goods and professional equipment taken abroad temporarily.
- Every suspension must be discharged: if the goods do not leave or are not placed under another procedure in time, duties become payable.
Paying import duty is not always the right answer. Goods crossing a country on their way to another, goods stored while waiting for a buyer, samples shown at a trade fair and materials imported to be processed and exported again: in all these cases, paying duties and VAT at the border and then claiming them back would be slow, costly and often impossible. Customs law provides special procedures that suspend or relieve duties while the goods are under control.
These procedures come from the Revised Kyoto Convention of the World Customs Organization, which sets common standards for transit, customs warehouses and free zones, temporary admission and processing. Names and details vary by country, but the logic is the same everywhere. In this lesson you will learn how each procedure works, when it saves money, what guarantees and records customs expects, and the traps that turn a suspension into an unexpected bill.
The main special procedures at a glance
| Procedure | What it does | Typical use | Ends when |
|---|---|---|---|
| Transit | Moves goods under customs control without paying duties | Landlocked destinations, inland clearance, crossing third countries | Goods arrive at the office of destination |
| Customs warehousing | Stores goods with duties suspended | Distribution hubs, waiting for a buyer, re-export | Release for consumption, re-export or another procedure |
| Free zone | An area treated as outside the customs territory for duties | Logistics, assembly, re-export | Goods leave the zone |
| Temporary admission | Uses goods temporarily with total or partial relief | Fairs, samples, professional equipment, containers | Re-export in the same state |
| Inward processing | Processes imported materials with duties suspended | Manufacturing for export | Re-export of finished products |
| Outward processing | Exports goods for processing abroad, then reimports with partial relief | Repair, subcontracted processing | Reimport of processed goods |
| End-use | Reduced or zero duty for goods put to a prescribed use | Aircraft parts, ship supplies, some industrial inputs | Goods are put to the prescribed use |
All of them share three features: an authorisation or declaration, a guarantee covering the suspended duties, and an obligation to discharge the procedure within a time limit with proper records.
Transit: moving goods without paying duties
Under transit, goods move from an office of departure to an office of destination under customs control, with duties and taxes suspended. The declarant (the "principal") provides a guarantee covering the duties at stake and must present the goods intact, with seals unbroken, within the prescribed time.
Common uses:
- Inland clearance: a container lands at Marseille and is cleared at an inland terminal near Lyon.
- Landlocked countries: goods for Bamako land at Dakar or Abidjan and cross Senegal or Côte d'Ivoire under transit. ECOWAS has its own inter-state road transit scheme for this.
- Crossing several countries: a truck from Turkey to Germany crosses non-EU and EU territories.
In Europe, the common transit system, run electronically through NCTS, covers the EU, the EFTA countries, the United Kingdom, Turkey and several other neighbours.
TIR: the international road transit system
The TIR system, based on the UN TIR Convention of 1975 and administered under the UN Economic Commission for Europe, has more than 75 contracting parties. A truck or container approved for sealing travels with a TIR carnet, backed by an international guarantee chain managed through national associations, and crosses borders with minimal checks: customs at each border checks the seals and the carnet rather than inspecting the cargo. The paper carnet is being replaced by its digital version, eTIR.
Customs warehousing: store now, pay later
A bonded warehouse (customs warehouse) holds non-cleared goods with duties and VAT suspended. When goods leave for the local market, duties are paid on release; when they are re-exported, no import duty is paid at all. Usual handling to preserve the goods, improve their presentation or prepare them for distribution (repacking, labelling, sorting) is generally allowed. In the EU there is no time limit on storage; other countries set one.
Free zones work on a similar principle, but for a whole area: goods inside are treated, for duty purposes, as not yet imported. They often host logistics, assembly and re-export activities.
Temporary admission and the ATA carnet
Temporary admission lets goods enter a country for a specific use and leave again in the same state, with total or partial relief from duties. Typical cases: exhibits at trade fairs, commercial samples, professional equipment (cameras, tools, measuring instruments), containers and pallets.
The simplest tool for exporters is the ATA carnet, a "passport for goods" created by the ATA Convention of 1961 and the Istanbul Convention of 1990. It is accepted in around 80 countries and territories, issued by national chambers of commerce, which also guarantee the duties to foreign customs. In Algeria, the Algerian Chamber of Commerce and Industry (CACI) issues and guarantees ATA carnets.
How it works:
- Apply to your chamber of commerce with the general list of goods (description, quantity, value, origin) and the countries to visit; provide the security the chamber requests.
- At each crossing, customs stamps and detaches a voucher: yellow for export and reimport in your country, white for import and re-export abroad, blue for transit.
- Re-export the goods within the time allowed by the foreign customs, and bring them home before the carnet expires. A carnet is valid for up to one year.
What the carnet does not cover: goods for sale, consumables (food samples to give away, brochures), and goods for processing or repair. Each country also decides which uses it accepts, so check before you travel.
Inward processing: import, transform, export
Inward processing lets a manufacturer import materials or components with duties suspended, process them, and re-export the finished ("compensating") products. Duties are payable only on what stays in the country. Many North African customs codes have an equivalent regime, known in French as admission temporaire pour perfectionnement actif. The authorisation fixes the rate of yield (how much finished product comes from each unit of input) and the period for re-export.
Watch the interaction with origin. Under the 2012 PEM rules, which Algeria still applies in its trade with the EU, the no-drawback rule prohibits duty relief on non-originating materials used in products exported with preferential origin. An exporter who used inward processing and also issues a EUR.1 must pay the suspended duties on those materials. The revised PEM rules lift this prohibition for most products, but they do not yet apply to EU–Algeria trade. See rules of origin.
Outward processing is the mirror procedure: goods are exported temporarily for processing or repair abroad and reimported with relief on the value of the original goods, so duty is paid only on the value added abroad.
Common mistakes
- Starting a procedure without the required authorisation or guarantee
- Letting transits or temporary admissions expire without discharge, which makes duties payable plus penalties
- Selling goods covered by an ATA carnet without regularising them
- Poor stock records in a bonded warehouse, unable to reconcile entries and exits
- Ignoring the no-drawback rule when exporting under preference
- Using temporary admission for goods that will in fact stay, which customs treats as an irregular import
Special procedures are where reliable companies gain the most from simplifications; holding AEO status often reduces the guarantees they require. For how these procedures fit into the normal declaration flow, see customs clearance.
Frequently asked questions
What is a bonded warehouse?
A bonded warehouse, or customs warehouse, is a place authorised by customs where imported goods can be stored without paying import duties and VAT. Duties are paid only when goods are released for consumption in the country; goods re-exported from the warehouse pay no import duty at all. In the EU, there is no time limit on storage.
What is an ATA carnet and how long is it valid?
An ATA carnet is an international customs document that allows temporary, duty-free import of commercial samples, professional equipment and goods for exhibitions and fairs into participating countries. It replaces the national declarations and guarantees, is issued by chambers of commerce, and is valid for up to one year.
What is the difference between transit and TIR?
Transit is the general customs procedure for moving goods under duty suspension from one customs office to another. TIR is a specific international transit system under a UN convention, using a TIR carnet backed by an international guarantee chain, which allows road vehicles or containers to cross several countries under seal with one document.
What is inward processing?
Inward processing lets a company import materials without paying duties, process them into finished products and re-export those products. Duties become payable only on the materials or products that stay in the country. It is designed to keep processing industries competitive in export markets.