How to get an Importer ID Number

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    Page written by Rachel Wait. Last reviewed on March 21, 2025. Next review due October 1, 2027.

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      If you’re thinking about growing your business internationally, it’s likely you’ll need Importer ID Number. Here’s everything you need to know about the application process.

      What is an Importer ID Number?

      An Importer ID Number is a unique identifier used by US Customs and Border Protection (CBP) to track and register customs information. It is used by customs and other authorities to monitor and track shipments coming into the United States.

      Who needs an Importer ID Number?

      This number is necessary for making customs declarations and handling the import process.

      How to get an Importer ID Number?

      If your business is based in the United States, you’ll need to complete the correct paperwork to get an Importer ID Number. Here’s the process:

      1. EIN Number: For most businesses, the Employer Identification Number (EIN) assigned by the IRS serves as the Importer ID Number.
      2. SSN: For sole proprietors who do not have an EIN, their Social Security Number (SSN) can be used as the Importer ID Number.
      3. Application Form: If you are not a US-based entity, you will need to fill out the CBP Form 5106 to create an Importer ID Number. This form can be submitted to the port where the goods will be entered.

      What information is required for the Importer ID application?

      When applying for an Importer ID Number, you will need to provide:

      • Company name and address.
      • EIN or SSN.
      • Contact information.
      • Description of the business activities.

      How to apply for an Importer ID Number?

      You can apply for an Importer ID Number through the US Customs and Border Protection website or directly at the port of entry.

      1. Online Application: Visit the CBP website and complete the necessary forms.
      2. Port of Entry: Submit the required documents in person at the port of entry where your goods will arrive.

      How Long Does the Application Take?

      The application form should be straightforward and quick to fill out. The Importer ID Number is generally assigned immediately unless CBP needs to make any additional checks on your application.

      Penalties for Not Having an Importer ID Number

      Failing to have an Importer ID Number can result in delays at customs and increased costs. Penalties may be imposed for non-compliance with customs regulations.

      Do I need an accountant or customs broker?

      While it is possible to handle the import process on your own, many businesses choose to hire a customs broker. Brokers are experts in customs regulations and can help ensure that all documentation is properly completed and submitted, which can prevent costly errors and delays.

      Additional tips for US Importers

      • Stay Informed: Regularly check the CBP website for updates on import regulations.
      • Maintain Records: Keep detailed records of all import transactions and communications with customs authorities.
      • Use Technology: Consider using customs management software to streamline the import process.

      For further Information

      For more detailed guidance and to apply for your Importer ID Number, visit the US Customs and Border Protection website.

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      Written by

      Rachel Wait

      Rachel has been writing about finance and consumer affairs for over a decade, helping people to get to grips with their finances and cut through the jargon. She's written for a range of websites and national newspapers including MoneySuperMarket, Money to the Masses, Forbes UK, and Mail on Sunday. Rachel has covered almost every financial topic, from car insurance and credit cards, to business bank accounts and mortgages.

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