One customs problem during Q4 can stop your inventory, crush your margins, and place your Amazon account under review before you even realize what happened.

If your business depends on low-value shipments from China, the old $800 duty-free assumption is no longer safe. The United States has suspended the de minimis exemption indefinitely for commercial imports, regardless of country of origin. That means the shipment strategy that worked last year could now create duty exposure, entry problems, or compliance questions at exactly the wrong time.

I’m Francis Mari, owner of Mari Marketing. I help Amazon sellers manage account risks before they become expensive emergencies. In this article, I’ll explain what the change means for your inventory, your margins, and your ability to prevent Amazon suspension.

This is not a minor paperwork update. It is a structural change to how many sellers must import products into the United States.

1. The $800 “free pass” is no longer available for commercial inventory

The former de minimis exemption allowed qualifying commercial shipments valued at $800 or less to enter the United States without the usual duty and entry burden.

That assumption is now outdated.

For Amazon inventory entering the United States:

• The de minimis exemption is suspended indefinitely for imports from all countries.
• Non-postal shipments: including air, ocean, truck, and rail: were affected beginning June 24, 2026.
• International postal shipments moved to a new postal informal entry process beginning July 24, 2026.
• Applicable duties, taxes, fees, and customs entry requirements must now be addressed.
• The October 22, 2026 compliance date is approaching for certain postal-entry requirements.

The official CBP Federal Register rule explains that qualifying postal shipments may use a new informal entry process, generally for merchandise valued at $2,500 or less. However, informal does not mean optional, undocumented, or duty-free.

Most sellers think the problem is simply “paying a new tariff.”

It isn’t.

The bigger issue is whether your sourcing, valuation, classification, importer-of-record structure, and Amazon account information all tell the same story.

2. Your margins may have been built on a cost that no longer exists

Many Amazon sellers priced products using a landed-cost calculation that assumed small shipments would enter duty-free. That calculation may have included:

• Product cost
• Freight
• Amazon fees
• Storage and fulfillment
• Advertising
• Returns

But it may not have included the full customs duties, broker charges, entry fees, or additional compliance costs now associated with inbound inventory.

That creates a dangerous gap.

A product that appeared profitable at $24.99 may become unprofitable after duties and entry costs are added. Sellers then face three difficult choices:

1. Raise prices and risk losing conversion.
2. Absorb the costs and operate at a much smaller margin.
3. Cut corners to preserve profitability.

The third option is where the real danger begins.

A seller who quietly changes declared values, uses inaccurate product descriptions, or relies on a gray-channel freight forwarder may believe they are protecting their business. In reality, they may be creating a customs compliance trail that becomes difficult to explain to Amazon, CBP, or both.

The biggest mistake I see sellers make is treating customs costs as a shipping inconvenience instead of an account-health issue.

3. Under-declaring is not a margin strategy: it is a compliance risk

When margins suddenly disappear, panic can take over.

A supplier may suggest declaring a lower value. A freight forwarder may promise an easier route. Someone in an online seller group may recommend splitting shipments or using paperwork that does not accurately describe the goods.

Fear not, though: but do not confuse reassurance with permission to take shortcuts.

Under-declaration can create problems involving:

• Incorrect customs valuation
• Unpaid or underpaid duties
• Misclassification
• Inaccurate country-of-origin information
• Inconsistent commercial invoices
• Questions about the importer of record
• Potential product admissibility concerns

Amazon may not immediately suspend an account because of one customs document. But customs problems can lead to shipment holds, inventory shortages, supplier documentation issues, or account-review questions. When those issues occur together, the account can begin to look operationally unreliable.

Amazon’s own guidance continues to place responsibility for US imports on the seller or the seller’s designated importer of record: not Amazon. Amazon has also signaled that future changes may affect how marketplaces and sellers handle import responsibilities. No finalized future overhaul should be assumed, but sellers should not ignore the warning.

The old assumption was: “Amazon will handle it.”

The safer assumption is: “I remain responsible for proving that my inventory entered the country correctly.”

4. The October 22 postal deadline requires immediate attention

The October 22, 2026 deadline is especially important for sellers using international postal shipments.

Under the new postal informal entry framework, eligible shipments may require detailed information such as:

• Filer code
• Bond number
• Description of merchandise
• Country of origin
• Applicable 10-digit HTSUS classification
• Value and duty rate
• Total duty owed
• Carrier and tracking information
• Arrival port and arrival date

Payment and required shipment information must generally be submitted within the prescribed reporting window. Certain products may also require formal entry rather than postal informal entry, including merchandise subject to additional duties, quota restrictions, anti-dumping or countervailing duties, or other government-agency requirements.

This is why waiting until October is a recipe for disaster.

Your broker, freight provider, supplier, and internal records may all need to work together. If one party has incomplete or inconsistent information, your shipment can be delayed while your inventory position deteriorates.

A delayed shipment during Q4 does not only affect logistics. It can lead to:

• Stockouts
• Missed sales
• Late fulfillment
• Reduced seller performance
• Poor customer experience
• Emergency restocking decisions
• Greater scrutiny of your account activity

5. Amazon inventory still requires a clear importer-of-record structure

For FBA sellers shipping inventory into the United States, Amazon generally does not act as the importer of record.

You or an entity appointed by you must be prepared to handle the legal responsibilities associated with importing, including:

• Accurate customs declarations
• Correct product classification
• Proper valuation
• Payment of applicable duties and fees
• Required product-safety documentation
• Coordination with your customs broker or filing provider

Amazon’s FBA import guidance should be reviewed alongside your broker’s advice. When shipping directly to an Amazon fulfillment center, sellers must also pay close attention to delivery terms, consignee information, and duty-payment arrangements.

A common seller situation looks like this: the seller’s supplier prepares one invoice, the freight provider uses another product description, and the Amazon shipment plan contains a third version of the information. None of the parties believes they are creating a serious problem. But the inconsistencies can become difficult to defend if a shipment is questioned.

Consistency is not cosmetic. It is evidence.

6. A proactive account management strategy is now essential

This is where an experienced amazon account management service becomes valuable.

My role is not to replace your licensed customs broker or provide legal advice on customs law. My role is to help you understand how operational changes can affect your marketplace account and to make sure your Amazon business is managed with account health in mind.

With my account management service, I can help you:

• Review how your sourcing and import structure affects Amazon operations
• Identify documentation gaps before they become account questions
• Coordinate the information you need from suppliers and logistics providers
• Review listing, inventory, and fulfillment risks connected to margin changes
• Help you prepare for the October 22 postal compliance deadline
• Identify warning signs that could contribute to a seller-account review
• Build a more reliable process for preventing Amazon suspension
• Advise you on safer responses when a shipment or compliance issue appears

More importantly, I help you avoid the panic moves that create additional risk. You should not respond to rising costs by falsifying values, switching to an unverified freight channel, or making rushed account changes without understanding the consequences.

A personalized review is far safer than a one-size-fits-all checklist because your products, suppliers, fulfillment model, importer structure, and account history all matter.

7. If customs problems have already affected your account, act carefully

If Amazon has already flagged your account, restricted listings, withheld funds, or questioned your inventory documentation, the response must address the underlying problem: not merely deny that anything happened.

A generic appeal is rarely enough.

I can evaluate whether the issue appears connected to:

• Import documentation
• Product authenticity or supply-chain concerns
• Inaccurate product information
• Restricted-product requirements
• Fulfillment or inventory irregularities
• Related account-health problems

If the account has been deactivated, my seller account reinstatement service includes case evaluation, a tailored appeal or Plan of Action, follow-up communication, revisions where necessary, and support through the resolution process.

Amazon does not reject appeals because sellers are always guilty. It often rejects them because the appeal fails to explain the root cause, corrective actions, and safeguards in a credible way.

8. Your decision before Q4 is simple

The end of the $800 de minimis exemption has changed the economics and the compliance burden of importing into the United States. China-based sourcing is not automatically impossible, but the old “small shipment, no duty, minimal paperwork” model is no longer something you should rely on.

You have two choices:

• Continue guessing, absorb surprise costs, and hope a customs or account issue does not appear during Q4.
• Or review your structure now, before the October 22 deadline and before a preventable mistake becomes an Amazon suspension.

If you want to protect your account while adapting to the new import environment, contact me for a consultation. I will personally review your situation and help you create a practical, tailored plan for managing your Amazon business safely.

Your inventory strategy and your account health are now more connected than ever. Do not wait for Amazon or CBP to point that out the hard way.