Customs Data Settings

Where to manage tax identifiers (IOSS, VAT, EORI), HS codes, and other customs data used on international shipments.

Overview

International shipments require customs data so the destination country can clear the package and charge the correct duties and taxes. Stallion stores this data centrally so you don't have to enter it on every shipment.

Open Settings → Customs Data to manage:

Tax IDs — IOSS, VAT, EORI, and country-specific identifiers
HS codes on your saved products
Country of origin defaults

Tax IDs (IOSS / VAT / EORI)

Identifier	Where it applies	What it does
IOSS	EU shipments under €150	Lets you prepay VAT at the point of sale so recipients aren't charged again on delivery
VAT	EU and UK shipments	Standard VAT registration number
EORI	EU shipments	Economic Operator Registration and Identification — required for businesses importing into the EU
VOEC	Norway	Can be entered in the VAT field

Add a Tax ID

Go to Settings → Customs Data → Tax IDs → Add.
Choose the identifier type and country.
Enter the number.
Save.

Apply a Tax ID to shipments

There are three ways to apply a stored Tax ID:

Per single shipment — on the New Shipment page, pick the identifier from the Tax ID dropdown above the Rates step.
Per connected store — go to Settings → Integrations → Stores, open the store, and select the Tax ID on the VAT tab. All imported orders inherit it.
Via a shipping rule — in Shipping Rules, create a rule that applies a Tax ID based on destination country, store, or order tags. This is the right approach when you import via file upload or need conditional logic.

Good to know: IOSS numbers are confidential and stored electronically — there's no need to write them on the package label itself.

HS codes

HS codes (Harmonized System codes) classify products for customs. They're required for international shipments and recommended for everything cross-border.

You can manage HS codes two ways:

On the saved product — go to Settings → Products, open the product, and set the HS code. The code auto-fills on every shipment that uses this product.
On the shipment line item — set the HS code directly in the Items step of the shipment wizard.

Find HS codes using:

Why HS codes matter

Outcome	Reason
Accurate duties	The HS code drives the duty rate the destination country applies
Faster customs clearance	Correctly classified products clear customs faster
Compliance	Carriers and destination customs authorities require HS codes on international waybills

Providing an incorrect HS code can result in customs delays, additional charges, or misclassification.

Country of origin

The Country of Origin is where the product was manufactured (not where it ships from). Set it on:

Per saved product — Settings → Products → product detail
On the shipment line item — Items step

Country of origin is required for international Courier and LTL shipments to the US and recommended for all cross-border parcels.

Edits after purchase

Once a shipment has been purchased, customs data on that shipment cannot be edited. Verify Tax ID, HS code, and country of origin before clicking Purchase.

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