Oct 22 Deadline: CBP Closes the Mail Loophole for Importers

If you have been sending samples, replacement parts or small restock orders from overseas suppliers by international mail, October 22, 2026 is the date to circle. That is when U.S. Customs and Border Protection (CBP) starts enforcing the exclusions in its new postal entry process, and a lot of goods that used to slip through the mail channel will have to go through formal entry instead.1

The short version: the mail shortcut is closing for exactly the products that attract the most scrutiny. If your cargo is regulated by another agency, falls under Chapter 98 or 99 duties, or relies on a free trade agreement claim, plan for a different route now.

What changed, and what changes on October 22

CBP suspended the de minimis exemption (the old rule that let low-value shipments enter duty-free) for all modes of importation, and replaced the mail workflow with a new postal informal entry process that took effect July 24, 2026.2 Under it, mail shipments need shipment-level classification, valuation, a customs bond, a duty calculation and monthly payment.3

CBP gave filers a grace period on the hardest categories. Enforcement of the exclusions for these goods was delayed until October 22, 2026:3

• Goods regulated by other agencies (PGA goods): anything under FDA, CPSC, USDA, FCC or similar oversight. Think cosmetics, supplements, food, toys and electronics.

• Chapter 98 and 99 goods: these are the HTSUS chapters where the extra tariff lines live, including most special duties layered on top of the base rate.

• Free trade agreement claims: duty-free treatment claimed under a trade agreement can no longer ride the postal channel.

Some goods were never eligible. Antidumping and countervailing duty (AD/CVD) goods, quota goods, alcohol, tobacco and anything valued over $2,500 are excluded from the postal entry process altogether.3

How the postal entry process works (and why it is not a free pass)

Some importers heard "postal entry" and assumed it was a lighter-touch option. It is lighter than a formal entry, but it is still real compliance work.

1. You need a bond. A basic importation and entry bond, single transaction or continuous, must be on file in ACE eBond before any filing.4

2. You send a spreadsheet. By the 7th day of the month after arrival, the filer submits shipment data: 10-digit HTSUS codes, origin, value, quantity, tracking number and total duty owed.4

3. You pay by ACH debit. Payment goes through Pay.gov by the same deadline. A package that lands April 15 is due May 7.4

Only the owner or purchaser of the goods, or a licensed customs broker they designate, can file.3 That matters if your supplier used to "handle it". They can't file for you anymore.

Who this hits hardest

Three kinds of importers should pay attention.

DTC and ecommerce brands that ship direct to customers. If you drop-ship regulated products such as skincare, supplements or kids' items, the parcel will need a proper entry with the right agency data. The same product data you would give a broker for a container is now needed for a single box.

Brands that fly in samples and prototypes. Product development teams love the mail channel because it is fast and cheap. After October 22, anything with a CPSC or FCC requirement should be treated like a commercial shipment. Our post on the CPSC electronic filing rule covers what that data looks like.

Anyone paying stacked tariffs. Goods with Chapter 99 duties are in the excluded group. If you are not sure whether your product is hit by extra tariffs, read how tariff stacking changes landed cost first.

What to do before October 22

You have a few weeks. Here is the order we would work in.

• Audit your parcel flow. List every product that arrives by mail or courier and tag the ones with agency oversight, Chapter 99 duties or FTA claims. Those are the ones that move.

• Get your HTS codes right. Postal entry needs 10-digit classifications on every line. A wrong code is now your problem, not the carrier's.

• Put a bond in place. A continuous bond usually makes sense if you ship more than a handful of times a year. Bond approval is not instant, so do not wait until the week of the deadline.

• Move recurring volume to consolidated freight. If you are sending the same SKUs every month in small parcels, a pallet by air freight or a consolidated ocean freight shipment will usually cost less per unit once entry costs are counted, and it clears under a standard entry.

• Get a broker on it. A licensed customs broker can file the entries and keep the paperwork consistent between shipments.

The mistakes we expect to see in late October

Rule changes with a hard date tend to produce the same few problems. Here is what to watch for.

Mixed parcels. A single box with one regulated item and four unregulated ones is now a formal-entry problem. Split shipments by product type before they leave the supplier, not after they reach the border.

Supplier paperwork that does not match. If the commercial invoice says "accessories" and your HTS code says something else, expect questions. Ask suppliers for itemized invoices with material, function and unit value for every line.

Assuming the carrier will sort it out. Parcel carriers move your goods, but they do not decide your classification or carry your compliance risk. If a shipment is held, the delay and the cost land on you, and a held parcel in peak season can sit for days.

The fix for all three is the same: treat small shipments with the same discipline as a container. The data you need is not complicated, it just has to exist before the goods ship.

Frequently asked questions

Is the de minimis exemption coming back?

CBP described the suspension as indefinite.2 Plan as if it is gone. Our earlier post on what the end of de minimis means for ecommerce importers covers the longer-term picture.

Do I have to use a broker?

No. The owner or purchaser can file. But with 10-digit classification, bond handling and monthly reconciliation, most small teams find a broker cheaper than the time spent.

What happens to goods that are excluded after October 22?

They need a formal or informal entry through the standard process rather than the postal channel. That means normal filing, normal data and, for PGA goods, the agency data that goes with it.

The bottom line

October 22 is not a surprise. It is a grace period ending. The importers who get caught are the ones who assumed the mail channel would stay open for regulated goods.

If you are not sure which of your products are affected, talk to Cubic. We will review your parcel flow, flag what needs a different route and quote a cleaner setup before the deadline. Do not forget cargo insurance on whatever you move to freight, since parcel carrier liability rarely covers full value.