How to Get a French EORI Number: A Step-by-Step Guide for E-commerce Importers
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OSS vs. IOSS: A Simple Explainer for E-commerce Sellers Shipping to France
18 November 2025
OUR GOAL
To provide an A-to-Z e-commerce logistics solution that would complete Amazon fulfillment network in the European Union.
Scaling an e-commerce brand in the EU is a top goal, but it comes with a major operational challenge: Value Added Tax (VAT). This isn't just an accounting line item; it's a complex web of regulations that can lead to frozen shipments, audits, and significant penalties.
The most common mistake sellers make? Assuming VAT is solely a financial issue. This is a critical misunderstanding. The truth is that VAT liability is triggered by your physical logistics. Where your inventory is stored, how it moves across borders, and who handles imports are all logistics functions that dictate your tax obligations.
Your fulfillment partner is therefore your first line of defense. An intelligent, data-driven 3PL provides the infrastructure and data to ensure compliance. This article breaks down the 5 biggest VAT mistakes e-commerce sellers make and explains how a strategic logistics partner is the key to solving them.
How can a logistics partner solve a tax problem?
Before we dive into the mistakes, let's establish this core concept. VAT liability is triggered by the physical movement and storage of goods.
- When does a sale officially happen?
- Which country's VAT rate applies?
- Where was the inventory stored when the order was placed?
- Who is responsible for paying the import VAT?
These are not accounting questions; they are supply chain questions.
Your fulfillment center's Warehouse Management System (WMS) holds the "single source of truth" for your physical operations. A good logistics partner makes this data accessible, accurate, and actionable, turning a potential compliance burden into a streamlined, automated process.
They are the bridge between your sales channel (like Shopify or a marketplace) and the tax authorities.
Mistake 1: Misunderstanding OSS, IOSS, and registration thresholds
This is, without a doubt, the most common point of confusion for sellers new to the EU. Since the 2021 VAT e-commerce package, the rules have changed dramatically.
The problem: a web of acronyms and threshold
Sellers often confuse the One-Stop-Shop (OSS) and the Import-One-Stop-Shop (IOSS), or worse, are unaware of the pan-EU distance selling threshold.
- The €10,000 threshold: If your total cross-border B2C sales to all other EU countries (combined) exceed €10,000 in a calendar year, you can no longer apply your home country's VAT rate. You must either:
- Register for VAT in every single EU country you sell to (a nightmare).
- Register for the OSS scheme.
- OSS (One-Stop-Shop): This allows you to report and pay all the VAT due in other EU member states via a single quarterly return in one country. This applies only to goods shipped from within the EU (e.g., from a warehouse in France to a customer in Germany).
- IOSS (Import-One-Stop-Shop): This is for goods shipped from outside the EU (e.g., from the UK, US, or China) directly to consumers in the EU. It applies to consignments valued at or below €150. If you use IOSS, you charge the customer's local VAT rate at checkout, and your logistics carrier remits it via your IOSS number, ensuring a smooth, duty-free delivery.
The mistake? Sellers use the wrong scheme, fail to register for OSS when they cross the €10,000 threshold, or incorrectly believe IOSS covers goods already stored inside the EU.
The logistics solution: a strategic hub and data clarity
A smart logistics partner (a 3PL or 4PL) provides the central nervous system to manage this.
- Strategic EU warehousing: By using a central fulfillment center (for example, in France), all your EU-to-EU sales originate from one location. This massively simplifies your OSS reporting. Your partner's WMS provides a simple, clean report: "You shipped X orders to Germany, Y to Spain, Z to Italy," with the exact values. This is the precise data your accountant needs for the OSS return.
- IOSS & customs integration: For goods imported into your EU warehouse, your logistics partner acts as your customs broker. They manage the initial import, handling all customs clearance before the product is even sold. For direct-to-consumer imports using IOSS, their shipping software integrates directly with your IOSS number, electronically tagging each shipment. This tells customs authorities that VAT has been collected, ensuring your packages fly through customs without stopping for extra fees.
Note: WMS and accurate shipping records are essential for compliance, but they do not replace legal registrations or formal tax filings. Sellers remain legally responsible for registering under OSS or IOSS and for the accuracy of VAT returns; logistics data is supporting evidence, not a legal filing.
Mistake 2: The DDP vs. DDU customer experience nightmare
This mistake doesn't just cost you money; it costs you your brand reputation. It stems from a failure to manage import duties and taxes at the point of sale.
The problem: angry customers and refused shipments
You're a US-based brand shipping to France. A customer buys a €80 product. You ship it DDU (Delivered Duty Unpaid). The package arrives in France, is held by customs, and the customer receives a notice: "Pay €22 in VAT and admin fees to receive your package."
Your customer is furious. They paid for a product, not a surprise bill. They refuse the shipment, write a 1-star review, and initiate a chargeback. You've now lost the sale, paid for two-way shipping, and damaged your brand.
Many sellers do this because calculating import VAT and duties (for orders over €150) is complex, and they don't have the logistical infrastructure to manage it.
The logistics solution: seamless DDP fulfillment
A top-tier logistics partner solves this by enabling a DDP (Delivered Duty Paid) experience.
This means the price the customer sees at checkout is the final price, period. The logistics partner makes this possible in two ways:
- For Orders Under €150 (via IOSS): As described in Mistake 1, their system integrates your IOSS number, so VAT is collected at checkout and the package is delivered seamlessly.
- For Orders Over €150 (Customs Brokerage): For higher-value goods, which are subject to both VAT and potential duties, your logistics partner's system calculates these charges at checkout via API. The customer pays everything upfront. Your partner then acts as the Importer of Record (IOR) or works with one, clearing the goods through customs on your behalf.
The result is a "domestic-like" customer experience. The package arrives quickly with no surprise fees. This is a powerful competitive advantage that is only possible through deep logistical integration.
Mistake 3: creating "accidental" tax nexuses with inventory
This is perhaps the most dangerous and silent VAT mistake, and it is a direct consequence of logistics decisions.
The problem: multi-warehouse "nexus" traps
You're scaling fast. To offer next-day delivery, you decide to split your inventory. You store some products in a French warehouse, some in a German warehouse, and maybe some in a Polish warehouse.
Congratulations, you have just created a "tax nexus" in three countries.
The moment your inventory is stored in a country, you have a physical presence (a "fixed establishment"). This immediately obligates you to get a local VAT registration in that country.
This mistake is incredibly common for sellers using Amazon's Pan-European FBA program, where Amazon automatically moves your inventory across multiple countries to optimize its own network. Sellers are often unaware they now have VAT obligations in 5-7 different countries.
The OSS scheme does not save you here. OSS is for distance selling from one country to another. It does not cover domestic sales (e.g., shipping from your German warehouse to a German customer) or the obligation to register where you store goods.
The logistics solution: strategic single-hub fulfillment
This is where a strategic 3PL partner provides immense value. Instead of scattering your inventory and creating a compliance nightmare, you can adopt a centralized EU fulfillment strategy.
By choosing a 3PL with a single, strategically located warehouse (e.g., in France, at the heart of Europe's major consumer markets), you can:
- Maintain one VAT registration: You register for VAT in France (your warehouse location) and then use the OSS scheme for all your other cross-border EU sales. This simplifies your compliance from 5+ registrations down to one.
- Achieve fast shipping: A modern fulfillment center with excellent carrier relationships can still reach 80% of European consumers within 48-72 hours from a central hub. The marginal gain in shipping time from multiple warehouses is rarely worth the exponential increase in tax complexity.
Your logistics partner gives you a choice—a smart, compliant alternative to the multi-nexus trap.
Mistake 4: Disastrous record-keeping and data inconsistencies
Tax authorities don't just want your money; they want your data. And they want it to be perfect.
The problem: mismatched data from 10 sources
When (not if) you are audited, you will be asked to provide records that prove your VAT declarations are correct. Typical documentary evidence auditors expect includes: the customer order and invoice, payment records, carrier tracking and proof of delivery, the WMS pick/pack/ship timestamps, customs clearance documents (where relevant), and any IOSS or OSS declarations. Reconciliation across these sources (matching SKUs, order numbers and values) is essential.
The mistake is that for many sellers, these data sources don't talk to each other. The SKU on the invoice might not match the SKU in the WMS. The shipping address might be for a German customer, but the billing IP address is from Switzerland. These inconsistencies are red flags for auditors and can result in massive penalties.
The logistics solution: The WMS as the single source of truth
An advanced logistics partner's Warehouse Management System (WMS) is the ultimate source of truth because it tracks physical reality.
An order is just data; a shipment is a fact.
A modern 3PL's WMS integrates directly with your e-commerce platform and carriers via API. When an order comes in, the WMS:
- Validates the order data (SKU, quantity, address).
- Records the exact moment the order is picked, packed, and shipped.
- Captures the carrier's tracking number and proof of delivery.
- Stores all this data in an organized, auditable format.
When your accountant needs to file a return or face an audit, your logistics partner can provide a clean, consolidated report that says: "Here are all the physical orders we shipped, their value, their destination, and the shipping evidence." This data is immutable and reconciles perfectly with your sales data, making audits a simple box-checking exercise.
Mistake 5: ignoring VAT on returns (reverse logistics)
Your supply chain doesn't end at delivery. It only ends when the customer is satisfied—and that includes returns.
The problem: A compliance black hole
A customer in Italy returns a €120 product to your warehouse in France. You issue a full refund.
- How do you reclaim the Italian VAT you already paid via your OSS return?
- What is the customs process for a product re-entering your warehouse?
- What documentation proves the refund was processed and the goods were physically returned?
Most sellers have a messy, ad-hoc returns process. They issue refunds from Shopify but have no clear data from their warehouse proving the item was actually received and put back into stock. This makes it impossible to legally reclaim the output VAT, meaning you are paying tax on sales that were ultimately canceled. This is a direct hit to your profit margin.
The logistics solution: integrated reverse logistics management
A professional fulfillment partner manages reverse logistics with the same precision as outbound shipping.
Their WMS and returns portal are designed to "close the loop" on compliance:
- Digital returns portal: The customer initiates the return online. The system generates a carrier label, already tagged with the correct customs information (as a "return of goods") to avoid new import fees.
- Warehouse processing: When the package arrives at the 3PL, it is scanned. The WMS logs the item's arrival, its condition (e.g., "sellable" or "damaged"), and triggers the refund in your e-commerce store via API.
- Compliant documentation: This process creates an indisputable digital paper trail. You now have a record that ties the original order (Order #123) to the refund (Refund #123) and the physical warehouse receipt (Return #123).
With this data, your accountant can confidently and legally deduct that sale from your VAT return, reclaiming the tax and protecting your margin.
Rethinking fulfillment as a compliance tool
The common thread through all these mistakes is a disconnect between sales, finance, and the physical reality of fulfillment.
Scaling in Europe doesn't have to be a choice between high growth and high risk. Achieving both requires recognizing that your fulfillment partner is a cornerstone of your compliance strategy.
When reviewing your European logistics, consider asking your current or potential partner these key questions:
- Technology: "How does your WMS integrate with my sales channels and provide auditable data for my OSS returns?"
- Customs: "What is your process for managing DDP shipping, and how do you handle IOSS declarations?"
- Strategy: "How can your warehouse location help me simplify my VAT registration obligations?"
- Returns: "What is your reverse logistics process, and what data will I receive to manage VAT refunds?"
The answers to these questions will reveal how deeply they understand the connection between logistics and tax compliance. A true partner will be able to demonstrate how their systems actively protect you from these common mistakes.
The right fulfillment framework provides more than just warehouse space and shipping labels. It provides the integrated technology, customs expertise, and strategic location that transform your supply chain from a potential liability into a powerful asset for compliant, sustainable growth.
