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VAT Compliance OSS and local VAT registration in Poland – when one system is not enough

The VAT OSS (One Stop Shop) system was designed to simplify VAT compliance within the European Union, and in many cases, it truly serves that purpose. For businesses engaged in cross-border sales, particularly in e-commerce, OSS can be a major facilitation.

In practice, however, a key question often arises: is OSS always sufficient, or is local VAT registration in Poland required? The answer is: it depends. This article explains when OSS does not replace Polish VAT registration and what the consequences of choosing the wrong system can be.

What is VAT OSS – a brief reminder

VAT OSS is an EU-wide scheme that allows businesses to report VAT due in other EU Member States through a single tax authority in the country of identification.

OSS covers, among others:

  • distance sales of goods to consumers (B2C) within the EU,
  • certain electronic, telecommunications and broadcasting services (TBE),
  • intra-EU sales after exceeding the EUR 10,000 threshold.

OSS does not eliminate VAT; it only simplifies the way it is reported.

When is OSS actually sufficient?

OSS is sufficient if all of the following conditions are met:

  • the seller carries out only B2C transactions,
  • goods are shipped directly from one EU country to consumers in another EU country,
  • the business does not hold a warehouse or inventory in Poland,
  • it does not perform taxable activities in Poland other than those covered by OSS.

In such cases, VAT registration in Poland is not required – even if sales are made to Polish consumers.

When is OSS not sufficient? Key scenarios

Warehouse or inventory in Poland

If the business:

  • owns a warehouse in Poland,
  • uses fulfillment services (e.g. Amazon FBA in Poland),
  • stores goods on Polish territory,

the mere presence of goods in Poland triggers an obligation for local VAT registration, regardless of OSS usage.

OSS does not cover domestic supplies or the own movement of goods.

B2B transactions (sales to businesses)

OSS does not apply to B2B transactions.

If a business sells goods or services to:

  • Polish VAT-registered entities,
  • or carries out intra-Community supplies of goods (ICS),

VAT registration in Poland and the submission of standard VAT returns are required

Domestic sales within Poland

If goods:

  • are located in Poland,
  • and are sold to a Polish consumer,

this constitutes a domestic supply that cannot be reported under OSS.

In such cases, the following are required:

  • a Polish VAT number,
  • submission of VAT returns (JPK_V7),
  • OSS may be used in parallel, but not as the sole reporting system.

Services not covered by OSS

Not all services qualify for OSS.

For example, services:

  • related to real estate located in Poland,
  • transport services,
  • event and admission-related services,

often require local VAT registration, even when provided to consumers.

OSS and Polish VAT in parallel – possible and often necessary

In practice, many businesses operate under two systems simultaneously:

  • OSS – for B2C sales to other EU countries,
  • Polish VAT – for transactions carried out within Poland.

This is lawful and frequently necessary, but it requires:

  • precise allocation of transactions,
  • correct invoicing,
  • consistent data reported to different tax authorities.

Consequences of incorrect OSS application

Incorrectly assuming that OSS “is enough” may result in:

  • VAT arrears in Poland,
  • interest and VAT penalties,
  • retroactive registration and corrections,
  • issues during tax audits.

Therefore, it is essential to analyse the logistics and sales model in detail – not just the sales destination.

Summary

VAT OSS is a powerful tool for simplifying VAT compliance, but it does not replace local VAT registration in Poland in every situation.

If you:

  • have a warehouse in Poland,
  • sell locally,
  • engage in B2B transactions,
  • import goods,

OSS will only be an addition – not the sole solution.

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