Your IOR Number May Already Be Dead: CBP's New Auto-Deactivation Is Live

On July 16, 2026, CBP flipped the switch on a system that automatically kills Importer of Record numbers that haven't filed an entry in 366 days. No warning letter. No grace period. Your next shipment simply gets rejected. If you import seasonally, hold multiple IOR numbers, or went dormant during the tariff chaos of late 2025 — you need to check your status right now.

Imagine this: your container arrives at Long Beach after six weeks on the water. Your broker submits the cargo release. ACE spits back Error 333: "IMPORTER INACTIVE FOR ENTRY PURPOSES." Your goods aren't clearing. Your IOR number — the one you've had for a decade — has been switched off while you weren't looking.

This isn't hypothetical. It started happening on July 16, 2026, and CBP is rolling it out incrementally, starting with the longest-dormant accounts first. According to CBP's own Broker Management Branch data, there are approximately 350,000 active IOR numbers in any given year. A significant chunk of those belong to seasonal importers, companies with multiple IOR numbers, or businesses that paused importing during the tariff turbulence of 2025. Many of them are about to get a very unpleasant surprise.

What Happened on July 16

U.S. Customs and Border Protection deployed a new status in the Automated Commercial Environment (ACE) called "Inactive for Entry Purposes." The legal authority is 19 CFR 24.5(e), and the operational trigger is straightforward: if your IOR number hasn't been used to successfully file an entry summary within the past 366 days, CBP will automatically deactivate it.

The deployment was announced via CSMS #69241265 on July 14, 2026 — just two days before going live. The reactivation procedures were published slightly earlier in CSMS #69056621 on June 26.

CBP isn't deactivating everyone at once. They're working incrementally, starting with IOR accounts that have been dormant the longest and expanding outward until every account exceeding the 366-day threshold is flagged. If your last entry was filed in June 2025 or earlier, your number may already be inactive.

Why CBP Is Doing This Now

This isn't a routine system cleanup. The IOR deactivation is the first concrete enforcement action taken under the "Strengthening Customs Enforcement" Executive Order signed by President Trump on June 3, 2026.

That order directed CBP to overhaul the entire IOR registry — removing inactive accounts, confirming compliance among active ones, and creating risk-based tiers based on enforcement history. The inactive IOR purge is CBP executing on that mandate with unusual speed (43 days from EO signature to deployment).

The broader goals behind the cleanup:

• Eliminate shell IOR numbers used to evade duties or obscure the true importer
• Reduce fraud vectors — dormant IOR numbers have been exploited for transshipment schemes
• Build the foundation for the "good standing" requirement that the EO mandates within 180 days
• Restrict foreign IOR access by first identifying which accounts are actually active and legitimate

In other words, this isn't just housekeeping. It's the opening move in CBP's most aggressive customs enforcement posture in over a decade.

What Gets Blocked — And What Doesn't

When your IOR number gets flagged as "Inactive for Entry Purposes," here's exactly what happens:

Blocked (you cannot do these):

• Transmit an ACE Cargo Release
• File an ACE Entry Summary
• Import goods using that IOR number in any capacity

Not affected (these still work):

• Acting as a consignee
• Filing drawback claims
• Reconciliations
• Securing a customs bond
• Transmitting Importer Security Filing (ISF)
• Other ACE business functions

This distinction is critical. Having a valid bond, an active ISF, or functioning ACE portal access does not mean your IOR number is active for entry purposes. These are separate systems within ACE, and CBP has made clear that importers "should not assume that an IOR number remains active simply because the company is still operating."

The Error Codes You'll See

If your broker tries to use a deactivated IOR number, ACE will reject the transaction with one of two specific error codes:

If your broker calls you about either of these errors, don't panic — but do act immediately. Every day your IOR stays inactive is a day your cargo sits.

Who's Most at Risk

Not every importer faces the same exposure. These profiles are most vulnerable:

• Seasonal importers — If you only import during certain months (holiday goods, agricultural products, seasonal apparel), your IOR may go 366+ days between entries
• Companies with multiple IOR numbers — Many businesses have legacy IOR numbers from acquisitions, subsidiary structures, or historical filing arrangements. The secondary numbers often sit dormant
• Businesses that paused imports in 2025 — The rapid tariff escalation under IEEPA caused many importers to halt or redirect shipments. If you stopped importing from China in mid-2025, your 366-day clock has already expired
• Foreign IORs — Already under heightened scrutiny from the June 3 EO, foreign IOR numbers with any gap in activity will be among the first deactivated
• Companies in M&A transitions — Acquired companies whose IOR numbers weren't immediately used by the new parent entity

How to Check Your Status

CBP hasn't provided a self-service lookup tool for IOR status. Here's how to verify:

1. Ask your customs broker — They can check IOR status through ABI. This is the fastest path.
2. Check your ACE portal — If you have ACE portal access, your account dashboard should reflect the current IOR status.
3. Review your entry history — Pull your last successful entry summary date. If it's more than 366 days ago, assume you're at risk.
4. Contact your Center Entry Team — CBP's Center of Excellence and Expertise teams can confirm status directly.

How to Reactivate a Deactivated IOR

CBP published the reactivation process in CSMS #69056621 (June 26, 2026). There are two paths:

Path 1: Through your customs broker (faster)

Your broker submits an Importer/Consignee Create/Update (TP) message through the Automated Broker Interface (ABI) with Action Code A to change your status from "20-Inactive" to "10-Active." All required CBP Form 5106 data elements must be included in the TP message.

Path 2: Direct submission (slower)

If you don't have a broker or your broker can't process through ABI, submit a revised CBP Form 5106 with all mandatory data elements to your Center Entry Team via email. The email subject line must include "IOR reactivation request" and the body must explain that the form is being submitted to reactivate an existing IOR currently in "20-Inactive" status.

Critical warning: STR attorney Nicole Bivens Collinson has noted that due to current backlogs in ACE account processing, reactivation efforts could take up to several weeks. If you import infrequently, start the reactivation process now — before your next shipment is on the water.

The Timeline Problem

Here's what makes this especially painful: the 366-day lookback is measured from your last successfully submitted entry summary, not from your last import activity. If you filed an ISF, paid a bond, or submitted other ACE transactions — none of that counts. Only a completed entry summary resets your clock.

What to Do Right Now: 5 Action Steps

1. Audit every IOR number your company holds — Not just your primary number. Check subsidiary IORs, legacy numbers from acquisitions, and any numbers used by affiliated entities. If you don't know how many IOR numbers are associated with your organization, ask your broker.

2. Verify last entry date for each IOR — Pull entry summary filing dates. Any IOR approaching 366 days without an entry needs immediate attention.

3. Proactively reactivate at-risk numbers — Don't wait for the error message. File a reactivation request through ABI now, especially given the multi-week processing backlogs CBP is experiencing.

4. Set up a monitoring cadence — Create a calendar reminder at 300 days post-last-entry for each IOR number. This gives you a 66-day buffer to file a reactivation or make an import before the auto-deactivation triggers.

5. Consolidate or surrender unnecessary IOR numbers — If you have legacy IOR numbers you genuinely don't need, consider surrendering them rather than maintaining them. Fewer active IORs means less compliance surface area — and with the "good standing" requirement coming by December, every active IOR is a compliance obligation.

What's Coming Next

The IOR deactivation is just Phase 1. The June 3 Executive Order gives CBP 180 days (until roughly December 1, 2026) to implement far more sweeping changes:

• "Good standing" requirement — Every IOR will need to maintain compliance history and current customs liabilities to remain eligible to import
• Risk-based tiering — CBP will create tiers based on compliance history, enforcement actions, and audit results
• Minimum domestic asset requirements — IORs will need to maintain tangible U.S. assets or enhanced bonding
• Foreign IOR restrictions — Foreign entities will lose access to informal entry procedures and face mandatory CTPAT validation or use of a CTPAT-validated broker
• Anti-shell company measures — CBP will issue guidance to prevent artificial corporate structures from qualifying as U.S. IORs

The inactive IOR cleanup is laying the groundwork for all of this. CBP is building a clean, verified registry before layering on compliance tiers and standing requirements. If your IOR can't survive the simple "have you filed in 366 days?" test, it definitely won't survive the more rigorous vetting coming in Q4.

Don't Let a Dead IOR Number Kill Your Supply Chain

The most frustrating thing about this change is how preventable the disruption is. A single proactive check — one conversation with your broker, one look at your entry history — is all it takes to avoid a surprise rejection at the port.

TariffLens tracks your classification and entry activity across all your IOR numbers, making it easy to spot which accounts are approaching the inactivity threshold before CBP pulls the plug.

This article is for informational purposes only and does not constitute legal, tax, or customs advice. Consult a licensed customs broker or trade attorney for guidance specific to your situation.