What it costs
No subscription fee, and no cost to use the tools. We want to help keep postal shipments moving, so we've made them available to every PostNL shipper.
Zonos also sells subscription-based ecommerce products. You do not need any of them—those are for ecommerce sellers who want to integrate Zonos into their website's checkout page, so their shoppers see duties, taxes, and fees upfront.
How to set it up
Five one-time steps. After that, your answers travel with every U.S.-bound parcel you send.
| Step 1 (one-time setup)
Available now
Create your free Verified Account
Sign up with your Google or Microsoft account, or enter your details manually, then add your business information.
After your account exists, you confirm your business details — your business address and contact information. Adding your Zonos information to your PostNL shipments comes at the end, in step 5.


| Step 2
Available now
Connect your Catalog once
You have two ways to do this:
- Connect your store with Zonos Sync. Your products and orders sync automatically, keeping your Catalog current as your store changes. Etsy, eBay, Shopify, WooCommerce, Adobe Commerce (Magento), Wix, Amazon, and BigCommerce are ready, with more coming soon.
- Upload a CSV. This works for any platform, and is the route to take if a connection to your store isn't available yet.
Either way, Zonos then knows what you sell, and can tell you which items need more information before they can be shipped to the U.S.
When the product name has to match. If you connect a channel, Zonos matches the shipment to your synced catalog by tracking number, so your product names do not have to match the goods description you send. If you upload by CSV, that goods description is what ties the shipment back to your catalog, so each product name has to match it exactly. If the two differ—an extra word, a different abbreviation, a trailing space—Zonos cannot make the connection, and the shipment is treated as though the data was never provided.
| Step 3
Available now
See which products need more data
Zonos checks every product in your Catalog and flags the ones that need attention, with the reason attached—melt and pour data for a steel water bottle, FDA details for a lip gloss. Anything without a flag is good to go.
The checks cover both sides of U.S. entry: the agencies that control what is allowed in, such as the FDA and CPSC, and the tariff programs that decide what you pay, such as Section 232.


| Step 4
Available now
Add the details for the flagged products
There are two ways to fill the gaps, and both save what you provide to the product so you never answer twice.
Zonos Clarify Zonos AI tells you what each flagged product is actually required to provide. Working that out yourself is possible, but slow: the requirements sit with different agencies and differ product by product. Clarify Zonos AI does it for you, whether the item is a set of wooden alphabet blocks or a lip gloss, and puts the questions in front of you.
It also infers the likely answers from the product information you already have, so you can move through a lot of products quickly—reviewing what Zonos proposes and correcting anything that needs it before you submit.
For requirements that paperwork satisfies, you can upload documents directly to your Catalog: certificates of origin, metal origin records for Section 232 (melt and pour for steel, smelt and cast for aluminum), and trade agreement documentation. Upload a document once and link it to every product it covers.
| Step 5
Available now
Add your Zonos information each time you create shipments with PostNL
Do this every time you ship a package under $2,500 USD to the United States. It tells PostNL which catalog of goods holds your product information, and which product data to attach.
- If you ship via Mijn PostNL Zakelijk or the PostNL Zakelijke app: enter your Zonos Organization ID in the "Zonos Organization ID" field, and the Zonos Catalog Item ID for each product in the "Zonos Catalog Item ID" field when you add it to your shipment.
- If you ship via the PostNL API: update your API integration for shipments to the U.S. and Puerto Rico. See the PostNL API changelog for details.


| After setup
Coming soon
Zonos comes to you when a detail is missing
You do not have to keep the Catalog perfect on your own. Zonos checks each U.S.-bound shipment against what you have already provided, and if something is missing, emails you a link to the one question that needs answering. Your answer is saved to the product, so it is not asked again.
Three things changed for postal shipments to the U.S.
Two of these are already in effect. The third has a deadline of January 20, 2027, and getting your data ready early makes the switch smoother.
Product-specific tariffs, like Section 232
Some U.S. tariffs depend on details about the product itself. Section 232, which has applied to postal shipments since July 24, 2026, covers steel and aluminum goods and asks where the metal was originally made—the country of melt and pour for steel, or smelt and cast for aluminum. Supply that documentation and your shipments can qualify for a lower duty rate.
Postal shipments are eligible for free trade agreements for the first time
The Australia-U.S. Free Trade Agreement (AUSFTA) can reduce duty on qualifying Australian-made goods, even when they ship from outside Australia, on shipments under $2,500 USD. Claiming a rate requires a valid certificate of origin with the shipment. Store the certificate against your products and Zonos sends it along, so the claim is available on every parcel it covers.
Agency-regulated postal shipments must be filed electronically from January 20, 2027
Partner government agencies are the U.S. bodies other than customs that regulate what can be imported, such as the CPSC for consumer products and the FDA for anything applied to or taken into the body. Starting January 20, 2027, postal shipments of products they regulate must be filed electronically through Entry Type 13, along with the data each agency requires.
Zonos is the trusted leader in cross-border technology.
For more than 16 years, we've been powering international commerce by classifying products with HS codes and calculating duties and taxes with accuracy and reliability. Today, our technology supports some of the world's largest brands, logistics providers, and thousands of ecommerce businesses.
Our mission has always been to increase trust in cross-border trade by making cross-border simple, transparent, and compliant. PostNL shippers get the same product intelligence that powers those integrations, in a free account built for exactly one job: getting the U.S. information for your products right.
Why do I need to provide this information now when I haven't had to before?
Do I have to have a Verified Account to ship to the U.S. with PostNL?
What does a Verified Account cost?
How do I know which of my products need more data?
What happens if my product names don't match the goods description I send to PostNL?
Can I connect my store instead of uploading a CSV?
What is Zonos Clarify Zonos AI?
What documents can I upload, and which trade agreements are supported?
Which trade agreements can I claim on goods I ship from the Netherlands?
What is a PGA, and why does it matter to a postal shipment?
What is country of melt and pour, or smelt and cast, and why is Zonos asking for it?
When do I need to have this done by?
How do I access my Verified Account after I register?
Can I claim a free trade agreement?
Can I change the HS code on a product?
How should I write my product descriptions?
Which fields in the CSV are required?
Who do I contact for help?
Everything in your free Verified Account
Everything you need to comply with the new U.S. requirements, lowering duty cost and reducing delays at customs. Explore the free tools for PostNL shippers below.







U.S. Customs and Border Protection (CBP) extended the compliance date 90 days from October 22, 2026 to January 20, 2027. CBP confirms there are no changes to international mail entry procedures before then. Read the update.
Free tools for PostNL shippers to meet new U.S. product data requirements
Support Free Trade Agreements (FTAs)
Add FDA, CPSC, and other PGA data
Reduce delays at customs
Add Section 232 data
Lower duty costs
The U.S. now requires more information about certain products shipped into the country. Zonos tells you which of yours are affected, asks the questions U.S. customs would ask, and sends the answers with every PostNL shipment—so nothing sits at the border waiting on a detail.
Create your free account