--- title: "What is an ITN number? The 15 characters that prove your export was declared" description: "What the Internal Transaction Number is, how AES assigns it, how to get one free in AESDirect, where the 15 characters go, and how to find a lost one." canonical: https://exportdocshub.com/blog/what-is-an-itn-number published: 2026-08-19 updated: 2026-09-09 --- # What is an ITN number? The 15 characters that prove your export was declared > What the Internal Transaction Number is, how AES assigns it, how to get one free in AESDirect, where the 15 characters go, and how to find a lost one. Every post on this site eventually says the same sentence: the ITN goes on your documents. The [EEI decision guide](/blog/do-i-need-to-file-eei-in-aes) says it. The [NOEEI reference](/blog/noeei-exemption-codes) says it. The [SLI walkthrough](/blog/shippers-letter-of-instruction) says it. This is the page that finally explains the thing itself: what the ITN is, what it looks like, how you get one, exactly where it goes, and what it does and does not prove. ## What it is The **Internal Transaction Number (ITN)** is the confirmation number the Automated Export System returns when it accepts your Electronic Export Information filing. That is the whole definition. You file the declaration, AES accepts it, AES hands back a number. The number is your proof of filing. The format is fixed at 15 characters: - The letter **X** - The **acceptance date**: four-digit year, two-digit month, two-digit day - **Six digits** assigned by the system So a filing accepted on August 18, 2026 comes back looking like **X20260818123456**. You can read the acceptance date straight out of any ITN, which is occasionally useful: an ITN whose date is *after* your ship date is a red flag in itself, because the [Foreign Trade Regulations](https://www.law.cornell.edu/cfr/text/15/30.4) expect the filing before export. One filing, one ITN. The number covers the whole shipment, every Schedule B line in it. You do not get an ITN per document, per pallet, or per invoice line. ## How you get one There are exactly two routes, and they are the same two routes as the [EEI filing itself](/blog/do-i-need-to-file-eei-in-aes), because the ITN is not a separate thing you apply for. It is the receipt. **Route 1: file yourself in AESDirect, free.** AESDirect lives inside CBP's ACE portal and is run jointly by the Census Bureau and CBP at no charge. You enter the shipment (parties, Schedule B numbers, values, weights), submit, and when the filing is accepted the ITN comes back three ways [per Census](https://www.census.gov/newsroom/blogs/global-reach/2019/05/filing_in_aesdirect.html): 1. **On screen**, in the response box, behind the View button 2. **By email**, to every address entered in step 1 of the filing 3. **In Shipment Manager**, which lists all your filings with the ITN in its own column That third one is the answer to the panicked "I lost my ITN" search. It never left. Log back into ACE, open Shipment Manager, read the column. If Shipment Manager shows the filing as Rejected rather than Accepted, there is no ITN to find yet, and the fix is to read the response codes: [AES fatal errors, and how to correct and retransmit a rejected EEI](/blog/aes-fatal-errors-response-codes). **Route 2: your forwarder files.** You authorize the filing through a [shipper's letter of instruction](/blog/shippers-letter-of-instruction), the forwarder files as your agent, typically for $25 to $50, and passes the ITN back. Two things do not transfer with the fee: the legal responsibility for the filing's accuracy stays with you, and so should a copy of the ITN in your own shipment record, not just theirs. ## Where it goes This is the part the glossary pages skip, and it is the part with a regulation behind it. [15 CFR 30.7](https://www.law.cornell.edu/cfr/text/15/30.7) requires the proof of filing citation on **the first page of the bill of lading, air waybill, export shipping instructions, or other commercial loading documents**, and requires it to be **clearly visible**. You (the USPPI) or your agent provide it to the carrier, and the carrier annotates its manifest with it. The citation format is the word **AES** followed by the number: ``` AES X20260818123456 ``` Note which documents that list names, and which it does not: the commercial invoice is not in it. For a small exporter preparing their own paperwork, that means two required placements plus one worth adding anyway: | Document | Where | Why | |---|---|---| | **Bill of lading / air waybill** | A labeled line on the first page | The regulatory requirement itself; this is what the carrier's manifest is checked against | | **Shipper's letter of instruction** | The EEI block | Tells the forwarder the filing is done; the [SLI](/blog/shippers-letter-of-instruction) has one slot that carries either an ITN or an exemption legend, never nothing | | **Commercial invoice** (recommended, not required) | A labeled line, typically near the reference numbers | 30.7 does not name the commercial invoice, so this is useful practice rather than a regulatory requirement. It keeps every party, including the consignee's customs broker, reading the same number | Carriers enforce this before CBP ever does. The postal service's international mailing rules have an entire section on the ITN, and a package that needs an EEI filing does not get accepted without the number or a valid exemption on its customs form. FedEx and UPS shipping tools have a dedicated field and will hold international shipments that need a value entered there. The practical rule: the ITN is a pre-departure document field, not an after-the-fact record. ## The mirror rule If your shipment does not require an EEI filing, there is no ITN, and the same slot on every document above carries a [NOEEI exemption legend](/blog/noeei-exemption-codes) instead: the citation of the FTR section that exempts you, most commonly 30.37(a) for shipments at or under [$2,500 per Schedule B number](/blog/schedule-b-number-vs-hs-code) or 30.36 for most shipments to Canada. One slot, two possible contents, never empty: - **Filed** → `AES X20260818123456` - **Exempt** → `NOEEI 30.37(a)` Most real-world penalties in this lane are not hard classification questions. They are shipments that went out with that slot blank. The ITN is one of roughly a dozen numbers that attach to a US export, and the others cause at least as much confusion: the shipment reference number you invent, the EIN that people call an exporter identification number, the export information code that is almost always `OS`. All of them are laid out side by side in [every number on a US export declaration, decoded](/blog/export-declaration-numbers). ## What the ITN is not **It is not an approval.** AES accepting your filing means the data passed the system's validation checks. Nobody reviewed your shipment. The ITN does not clear your goods, bless your classification, or confirm your consignee is allowed to receive them. **It is not a license.** If your item, destination, party, or end use [requires an export license](/blog/do-i-need-an-export-license), the ITN does not substitute for it. A shipment can carry a perfectly valid ITN and still be a violation. In fact a required license makes the EEI filing mandatory regardless of value, so in the worst case the ITN is proof you declared a shipment you were not allowed to send. **It is not proof the data was right.** The filing obligations sit with you even when a forwarder types it. If the AES value does not match the commercial invoice, the ITN on the paperwork just makes the mismatch easier to find. ## Keeping the number where it belongs The failure mode with ITNs is not getting one. AESDirect is free and the number arrives three ways. The failure mode is the number living in an email thread while the invoice, the SLI, and the bill of lading get typed by hand from three different sources, one of which is a stale draft. [ExportDocsHub](/) treats the ITN the way the regulation does: as a field on the shipment, not a fact in your inbox. You enter the shipment once (consignee, Schedule B, value, Incoterm), the system knows whether the shipment needs a filing or qualifies for an exemption, and the same ITN or NOEEI legend lands on the commercial invoice and the SLI from a single field that cannot be silently left blank. If you would rather stop reconciling one number across three documents, [start a free trial](https://exportdocshub.com/sign-up). No credit card required. --- **Further reading** - Census: [Filing in AESDirect: how do you find your ITN?](https://www.census.gov/newsroom/blogs/global-reach/2019/05/filing_in_aesdirect.html) - Cornell LII: [15 CFR 30.7, annotating commercial documents with proof of filing citations](https://www.law.cornell.edu/cfr/text/15/30.7) - Census: [AESDirect resources in the ACE portal](https://www.census.gov/foreign-trade/aes/ace-aesdirect.html) **Related on this site** - [Do I need to file EEI in AES? A decision guide for small US exporters](/blog/do-i-need-to-file-eei-in-aes) - [NOEEI exemption codes: the complete list for small US exporters](/blog/noeei-exemption-codes) - [How to fill out a shipper's letter of instruction (SLI), step by step](/blog/shippers-letter-of-instruction) - [Do I need an export license? The question that cancels every AES exemption](/blog/do-i-need-an-export-license) - [Schedule B number vs HS code: which one you need](/blog/schedule-b-number-vs-hs-code) - [Every number on a US export declaration, decoded](/blog/export-declaration-numbers) *Written by [Anas Marwan](/authors/anas-n), Co-founder of Darza Technologies. Last reviewed 2026-08-19.* --- Source: https://exportdocshub.com/blog/what-is-an-itn-number (https://exportdocshub.com)