Professional perimeter. LEXONYX performs international structure design, fact mapping, project coordination and integration of specialist conclusions. Where a matter requires jurisdiction-specific legal, tax, regulatory or other reserved professional advice, the relevant conclusion is provided or confirmed by an appropriately qualified professional in that jurisdiction. Ukrainian-law advice may be provided directly within the founder’s professional authorisation.

VAT and Cross-Border Models

VAT risk does not arise in the rate. It arises when sales, warehouses, platforms and actual fulfilment do not align.

Sales · Platforms · Warehouses · Fulfilment

Why VAT quickly becomes a structural risk

In a cross-border model, sales may take place in several countries at once, while the legal structure often does not account for where the VAT obligation arises. The issue usually does not lie in the rate, but in the mismatch between the sales model, warehouse logic, the role of the platform and actual fulfilment.

Sales in the EU without a correct OSS model.
Use of warehouses without fixed establishment analysis.
Marketplace model without proper allocation of roles and risks.
Contractual structure not aligned with the actual operating model.

VAT architecture must match how the business actually sells, stores, ships and receives revenue.

Typical scenarios

Sales in the EU from several countries or dispatch points

Several sales markets or warehouses create new VAT obligations that need to be classified in advance.

Sales through marketplaces and platforms

Each platform has its own role in the supply chain, and this changes the seller’s VAT logic.

OSS or IOSS question

It is necessary to understand whether the regime applies to the specific sales structure and whether the model creates exceptions.

Warehouse or order fulfilment in another country

A warehouse, inventory or fulfilment centre may create VAT registration and tax presence.

Which elements we review

Sales model

B2B/B2C, physical goods, digital services, platforms, subscriptions and the role of each company in the chain.

Place of supply

Transaction facts relevant to place-of-supply analysis, prepared for jurisdiction-specific VAT confirmation.

OSS / IOSS

A transaction map and regime indicators prepared for specialist confirmation of OSS / IOSS applicability and exceptions.

Warehouses and order fulfilment

The existence of a warehouse, fulfilment centre or local infrastructure and their impact on the tax profile of the model.

Revenue flows and contractual logic

Who is the seller, who receives the money, how the chain is documented and whether it matches the actual transaction.

Connection with the group structure

Whether the VAT model diverges from ownership, allocation of functions, team geography and the overall group logic.

Where risk most often arises

Sales structure does not match the contractual model

Formal documents say one thing, while goods, money and fulfilment move under another logic.

Goods are stored in a country without analysing the consequences

A warehouse or order fulfilment creates a new VAT obligation that the structure did not account for.

The platform changes the seller’s role

The marketplace model changes the VAT logic, while the group continues to operate under the old structure.

OSS or IOSS is applied formalistically

The regime has been selected, but the actual model does not meet the conditions for its application.

Analysis result

A map of the VAT logic across sales, platforms, warehouses and fulfilment.
An understanding of OSS/IOSS applicability and the areas where those regimes do not close the risk.
An assessment of tax presence risk for VAT purposes.
An aligned model in which sales, money movement and tax obligations are built into the group structure.
A list of red flags to address before growth, review or entry into a new market.

The objective is not simply to determine whether a VAT number is required, but to build a model in which the tax logic matches the actual sales and operating architecture of the business.

VAT and Cross-Border Models — in brief

Why does VAT become a structural risk, not a question of the rate?

The issue usually does not arise from the rate, but from a mismatch in the model: sales take place in several countries at once, while the legal structure does not account for where the VAT obligation arises. VAT architecture must match how the business actually sells, stores, ships and receives revenue — otherwise the risk accumulates unnoticed.

What are OSS and IOSS, and when do they apply?

OSS and IOSS are simplified VAT reporting regimes for sales in the EU. The key question is whether the regime applies to the specific sales structure and whether the model creates exceptions. A common error: the regime is selected formalistically, while the actual sales model does not meet the conditions for its application, leaving the risk open.

Does a warehouse in another country create VAT obligations?

Potentially. A warehouse, inventory or fulfilment centre in another country can create facts relevant to VAT registration or fixed-establishment analysis. The jurisdiction-specific result depends on the applicable VAT rules and should be confirmed before implementation.

How does a marketplace change the seller’s VAT logic?

Each platform has its own role in the supply chain: a marketplace may take over the seller role or affect who has the VAT obligation. A typical risk is that the marketplace model has already changed the VAT logic, while the group continues to operate under the old structure, where the wrong company is treated as the seller.

Need to check the VAT logic of your model?

Describe the countries of sale, company roles, platforms, warehouses and order fulfilment. We will identify exactly where the VAT obligation arises and how to integrate it into the wider group architecture.

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Initial qualification · scope after review of the request · no guarantee of outcome