VAT invoice unblocking: how to restore operations without losses

For businesses, a blocked VAT invoice usually means much more than just a technical error. Payments with partners are put on hold, the VAT credit gets frozen, counterparties become nervous and start looking for more “reliable” suppliers. At the same time, the notification in the taxpayer’s e‑cabinet typically looks like a set of formal phrases from which it is hard to understand what exactly the tax authority considers risky.

Invoice blocking is the result of the tax service’s risk‑based algorithms: the system analyses your transactions, NACE codes, volumes and counterparties’ history. Very often those who work “in the white” end up under attack simply because they do not monitor risk criteria and do not properly document the reality of their transactions. At WINNER we help not only to unblock VAT invoices here and now, but also to build processes in a way that minimises repeated suspensions.

Why VAT invoices get blocked

The most common reasons for VAT invoice blocking are:

• the counterparty or the taxpayer themselves is included in the list of risky taxpayers;
• the transaction does not fit your typical volumes or types of activity;
• the tax authority does not see sufficient “resource backing” for the transaction (personnel, fixed assets, warehouse space);
• there are indications of “carousel” schemes or transit‑type transactions.

Standard notices rarely provide a clear explanation of what exactly is wrong. Businesses try to “push through” unblocking with any documents they can find, send dozens of unsystematic files, waste time and effort and receive formal refusals. Without a clear strategy this turns into a long‑term paper war.

How WINNER works with VAT invoice unblocking

Our approach is not to boil everything down to “send more paperwork”, but to show the tax authority the reality of the transaction in the language of documents.

Typically we go through the following stages:

• Analysing notices and risk criteria.We identify which specific criterion triggered the suspension, and assess whether there is a systemic issue (risky taxpayer, type of transaction, specific counterparty).
• Collecting evidence of the transaction’s reality.Contracts, specifications, acts, delivery and payment documents, CMRs/transport documents, correspondence, photo/video evidence – everything that proves the transaction is not fictitious.
• Preparing explanations and the document package.We compile a structured file: a narrative explanation telling the logical story of the transaction plus annexes where each document supports a particular argument.
• Supporting communication with the tax service.We monitor deadlines and commission responses; in case of refusal we prepare new submissions taking into account the comments or initiate administrative/judicial appeal.

In parallel, we assess whether you should change your approach to documenting operations, review NACE codes, counterparties or the supply chain structure so as not to step on the same rake again.

How to protect your business from repeated blocking

Unblocking once is important. But for stable operations you need to ensure such situations do not become routine. That is why, together with business owners, we then:

• review typical supply chains and identify weak links;
• set up standard document packages for different types of transactions;
• organise work with risky counterparties or propose alternative interaction models;
• prepare internal guidelines for managers so that every significant transaction has sufficient evidential support at the moment it is carried out.

As a result, an invoice block becomes not a regular “disaster”, but a rare exception the business is prepared for.

Why you should turn specifically to WINNER

When it comes to VAT invoice blocking, practice is just as important as the black‑letter rules. WINNER is a law firm with a team of 20 attorneys and lawyers who deal with tax matters, VAT invoice registration suspensions and disputes with the tax authorities on a daily basis. We understand how tax commissions think and which arguments and documents they actually take into account – and which they tend to ignore.

We assist businesses all over Ukraine: from one‑off cases of unblocking individual invoices to setting up systems that significantly reduce the number of blocks in general. If registration of your VAT invoices has turned into a “roulette”, contact WINNER — we will identify the root causes, prepare an effective document package and help you restore stable operations without unnecessary losses of time, reputation and money.

Author: Ihor Yasko, Managing Partner of the Law Firm “WINNER”, PhD in Law.