CBP Form 5106 at a glance
What it is: CBP Form 5106 of the Department of Homeland Security, U.S. Customs and Border Protection, is the Create/Update Importer Identity Form, 19 CFR 24.5.
Who signs: By my signature, I certify that, to the best of my knowledge and belief, all of the information included in this document is true, correct, and provided in good faith.
As the importer, consignee, or other party listed in block 1, you are responsible for the validity of the information provided in this document. Any Customs Broker or third party who is submitting the information on your behalf is only obligated to convey this information to Customs and Border Protection (CBP).
CBP is requesting this information to collect and maintain records on all commercial goods imported into the United States, along with carrier, broker, importer, and other ACE-ITDS Portal user account and manifest information.
A filled-in CBP Form 5106 example: a new corporation requests an importer number

How to fill out CBP Form 5106, box by box
Type of action

Notification of Identification Number: check this box if this is your first request for services with CBP, or if your current Importer Number is inactive and you wish to activate this number.
Change of Name: check this box if the Importer Number is on file but there is a change in the name.
Change of Address: check this box if the Importer Number is on file but there is a change in the address.
For updates involving an existing IOR other than a change of name or address, TYPE OF ACTION should be left blank.
If a Change of Address and/or Change of Name is requested for an importer or other party that has an active bond on file with CBO, then a name and/or address rider must accompany this change document, unless the rider is otherwise not required for the bond pursuant to a CBP test announced in the Federal Register, such as CBP's eBond Test Program, or otherwise not required by CBP's regulations.
Name and identification number

1A, Importer/Business/Private Name: Indicate the full legal name of the company or individual who will be importing or seeking service or payment.
If you are submitting this document as a consignee to the import transaction, sections 1 and 2 must be filled out completely.
1B, IRS/SSN: Complete this block if you are assigned an Internal Revenue Service (IRS) employer identification number or Social Security Number (SSN).
Number Type: Select Only One.
1C, DIV/AKA/DBA: Complete this block if an importer is a division of another company (DIV), is also known under another name (AKA), or conducts business under another name (DBA).
1D: Complete this block only if Block 1C is used.
Request CBP-Assigned Number

1E, Request CBP-Assigned Number: Complete this block if you have neither an IRS employer identification number nor a SSN and you require a CBP-assigned number, or, you choose to use a CBP-assigned number in lieu of your SSN.
If you have an IRS employer identification number at the time you submit this form that number will automatically become your importer identification number and no CBP-assigned number will be issued.
If you have elected to request a CBP-Assigned Number in lieu of your SSN, you must provide your Company Position Title, Name, and SSN in block 3J of this form.
A CBP-assigned number is for CBP use only and does not replace listing a SSN or IRS employer identification number on this form.
If an IRS employer identification number, a Social Security Number, or both, are obtained after an identification number has been assigned by CBP, a new CBP Form 5106 form shall not be filed unless requested by CBP.
1F, CBP-Assigned Number: Complete this block if you have already been assigned a CBP-Assigned Number, and there is a requested change in Block TYPE OF ACTION.
Entries and how the identification number will be utilized

1H: Provide an estimate of the number of entries that will be imported into the U.S. in one year, if you are an importer of record.
1I: Check the boxes which will indicate how the name and identification number will be utilized.
1J thru 1M: If you are currently an active participant in a CBP Partnership Program(s), provide the program code in Block 1J thru Block 1M of the revised CBP Form 5106 and the information that is contained in Section 3 of the revised CBP Form will not be required. SECTION 2, ADDRESS INFORMATION, 2A, MAILING ADDRESS: Mailing Address for the named business entity or individual referenced in section 1.
Mailing address

2A, Street Address 1: This block must always be completed. Insert a post office box number or a street number representing the first line of the mailing address. This line can be no more than 32 characters long.
If a P.O. Box number is given for the mailing address, a second address (physical location) must be provided in 2B.
State/Province: For a U.S. mailing address, insert a valid 2-position alphabetic U.S. state postal code. For a Canadian mailing address, insert a 2-character alphabetic code representing the province of the importer's mailing address.
Country ISO Code: For a U.S. mailing address, leave blank. For any foreign mailing address, including Canada and Mexico, insert a 2-character alphabetic International Standards Organization (ISO) Code representing the country.
Type of Address: Check the box that describes the address in 2A: Is the address in 2A, a: Residence, Corporate Office, Retail Location, Office Building, Business Service Center, Post Office Box, Other - Explain:, Warehouse.
Physical location address

2B, PHYSICAL LOCATION ADDRESS: Required only if different than mailing address. Each street address line can be no more than 32 characters. Provide the address that is associated with the business or the individual. The PHYSICAL LOCATION ADDRESS cannot be a P.O. Box, Business Service Center, etc. The address associated with the business can be the principal's home address.
The Physical Location Address does not need to be provided on the form if it is the same as the mailing address.
A second address representing the company's place of business is to be provided if the mailing address is a post office box or drawer.
Company information

SECTION 3, COMPANY INFORMATION: In most cases, the data elements in this section are optional.
However, if the I have a SSN, but wish to use a CBP-assigned number on all my entry documents option was selected in Block 1E, you must provide your Company Position Title, Name, and SSN in Block 3J.
The absence of this information will affect CBP's ability to fully understand the level of risk on subsequent transactions and could result in the delay of cargo release or the processing of a refund.
Beneficial Owner and Company Officers
More rules for CBP Form 5106
All the data elements with a red asterisk are required.
The estimated average time to complete this application is 45 minutes.
Providing this information is voluntary. However, failure to provide the information will result in the denial of a CBP-assigned importer number/importer of record identification (ID) number, and inability to pay import related duties, taxes, and fees related to an entry of imported goods.
Common questions about CBP Form 5106
What is the purpose of CBP form 5106?
CBP Form 5106 of the Department of Homeland Security, U.S. Customs and Border Protection, is the Create/Update Importer Identity Form, 19 CFR 24.5. CBP will use this information to track, control, and process all commercial goods imported into the United States.
Sources
[1] CBP Form 5106 (06/26), Create/Update Importer Identity Form, U.S. Customs and Border Protection (the Official source link on this page).



