ATA Carnet vs Temporary Import: A Practical Guide

Why Temporary Import Options Matter

Companies move goods across borders for reasons that have nothing to do with selling them. A medical device team ships demo units to an overseas conference. A research group carries professional testing equipment to a partner site. A manufacturer sends a product abroad for repair. In each case the goods are meant to come back.

Paying full import duties and taxes on goods that will not stay makes no sense. For a U.S.-based company, three paths handle this. First, an ATA Carnet covers most outbound trips to participating countries. Second, when the destination does not accept carnets, you use that country's own temporary import procedure. Third, a Temporary Importation under Bond covers goods coming into the United States. Choosing the right path protects your budget and keeps shipments moving.

What Is an ATA Carnet?

An ATA Carnet is an international customs document that lets you take qualifying goods into participating countries without paying duties or taxes, as long as the goods return within one year. It is often called a "merchandise passport" because a single document covers your goods across multiple countries and multiple trips.

In the United States, ATA Carnets are issued by the United States Council for International Business (USCIB), the national guaranteeing association, under a system overseen globally by the International Chamber of Commerce and the World Customs Organization (United States Council for International Business).

Carnets typically cover three categories of goods: commercial samples, professional equipment, and items for trade shows and exhibitions (U.S. Customs and Border Protection). They do not cover consumable, disposable, or for-sale goods.

If you already know a carnet is the right fit, Mercury's ATA Carnet service helps you set it up and handles the shipping. The sections below help you decide whether a carnet or a temporary import bond fits your shipment.

Which Countries Accept ATA Carnets?

More than 80 countries and territories accept ATA Carnets, including most of Europe, the United Kingdom, Canada, Japan, and many markets across Asia and the Middle East (United States Council for International Business). The list keeps growing as new countries join the system.

Within that network, a single carnet lets your goods enter and leave each participating country as often as needed during its validity. For U.S. exporters, this covers the majority of trade shows, demos, and professional equipment trips. Confirm your destination is on the current list before you ship.

Temporary Imports Into Countries That Do Not Accept Carnets

Many countries do not participate in the ATA Carnet system, including much of Africa and parts of Latin America. When you ship temporarily to one of these markets, you use that country's own temporary import, or temporary admission, procedure instead. For U.S. exporters, this is the most common alternative to a carnet, so it pays to understand it.

These procedures vary widely by country. Most require a local guarantee for the duties and taxes at risk, often as a cash deposit or a bond posted through an in-country customs agent, along with detailed documentation of the goods and their intended return. Some countries limit which goods qualify or how long they can stay.

Because the rules differ in every market, plan these shipments early. Confirm the specific temporary import requirements for the destination, budget for any deposit, and line up the local documentation before the goods move. Your HS code helps confirm how the goods will be classified on arrival.

Temporary Importation Under Bond: Goods Coming Into the US

The third scenario runs the other direction: goods entering the United States temporarily. A Temporary Importation under Bond (TIB) lets you bring goods into the U.S. without paying duty, under a bond that guarantees the goods will be exported or destroyed within a set period. The goods cannot be imported for sale (U.S. Customs and Border Protection).

A TIB is not a document you carry across borders like a carnet. It is a type of U.S. customs entry, filed under specific Chapter 98 tariff provisions and backed by a customs bond. It commonly covers goods brought in for repair, alteration, testing, or processing.

Carnet vs Temporary Import: A Quick Comparison

The Financial Benefits of Temporary Import Classification

Handling goods as a temporary import, rather than a standard import, protects cash flow in several ways:

• No duties or taxes on goods that will return, instead of paying and later seeking a refund.

• One carnet replaces repeated cash deposits at each border crossing, which frees up working capital.

• Predictable cost, since a carnet carries a set fee and security rather than variable duties in every market.

• Fewer delays, because pre-cleared documentation speeds inspection and release.

For high-value healthcare and life sciences equipment, these savings add up quickly across a multi-country tour or a series of demonstrations.

Timelines, Returns, and Extensions

An ATA Carnet is valid for one year from its issue date, and the goods can enter and leave participating countries as many times as needed during that year (United States Council for International Business). Carnets are generally not extendable. If you need more time, you apply for a replacement carnet before the original expires.

A TIB runs for up to one year and can be extended in one-year increments, with the total not exceeding three years from the date of importation. You must file the extension with CBP before the current period ends, using the Application for Extension of Bond for Temporary Importation (CBP Form 3173), or you risk breaching the bond (U.S. Customs and Border Protection).

The rule for both is simple: track your deadline and export or return the goods before it passes.

Penalties When the Plan Changes

Temporary import plans do not always go as expected. Goods get sold, damaged, lost, or simply stay too long. When that happens, the duty-free status ends, and costs follow.

For an ATA Carnet, failing to re-export the goods leads to a claim from the foreign customs authority for the duties and taxes that would have applied, plus penalties. The guaranteeing association pursues that claim against the carnet holder.

For a TIB, failure to export or destroy the goods on time results in liquidated damages under the bond, which are often set at twice the estimated duties (U.S. Customs and Border Protection). Filing a timely extension or arranging a proper entry avoids these charges.

The takeaway is to treat the deadline as firm and to document every movement of the goods.

Choosing the Right Path for Your Shipment

Start with the destination. If your goods travel outbound to a participating country and return, use an ATA Carnet, such as exhibiting medical devices at an overseas congress or carrying professional equipment to a partner site. Trade shows are one of the most common carnet scenarios, as covered in our guide to trade show logistics.

If the destination does not accept carnets, use that country's temporary import procedure and budget for a local deposit or bond.

If goods are entering the United States temporarily for repair, testing, or processing, use a TIB. When goods are staying and entering commerce, a standard import entry and the right import permit or license apply instead.

Whichever path fits, a licensed customs broker can confirm classification and prepare the documentation, and a customs power of attorney lets that broker act for you at the border.

How Mercury Helps

Mercury supports healthcare and life sciences teams that move medical devices and specialized equipment across borders for demos, testing, and exhibitions. Our ATA Carnet service and customs brokerage team help you choose the right path, set up your carnet, and handle everything shipping related, with clear guidance at each step. You keep control of your re-export deadlines, and we make sure you have what you need to meet them.

To plan a temporary import or export with confidence, contact Mercury today.