Main Reasons for Blocking Tax Invoices: What Businesses Need to Know

Blocking tax invoices is one of the most pressing issues for VAT payers in Ukraine. It not only complicates settlements with counterparties but also creates risks for the financial stability of businesses. To prevent invoice blocking, it is important to understand the main reasons why the tax authorities suspend invoice registration.

1. Compliance with Risk Criteria

The State Tax Service of Ukraine uses an automated monitoring system (SMKOR) that analyzes tax invoices according to several criteria. If the invoice or the taxpayer matches certain “risk” indicators, the system automatically suspends its registration.

Such criteria include:

• The taxpayer has a risky status (included in the list of risky taxpayers);
• The taxpayer’s counterparty has a risky status;
• The tax invoice contains goods/services from the “risky” list;
• The VAT amount exceeds the average monthly tax burden.

2. Mismatch Between Supply Volumes and Financial Capacity

If the declared supply volume significantly exceeds the company’s financial or staffing resources, the tax authorities may consider such transactions fictitious. Special attention is paid to:

• Absence of employees;
• Minimal fixed assets;
• Suspicious suppliers.

3. Errors or Lack of Primary Documents

Even formal mistakes in an invoice, such as:

• incorrect UKT ZED or DKPP code;
• incorrect product name;
• absence of mandatory details;

may become grounds for blocking the invoice.

4. Insufficient Tax History or Newly Established Business

Companies with a short tax history or newly registered businesses are more likely to undergo scrutiny. Tax authorities often regard such taxpayers as potentially risky, especially if they immediately declare large VAT amounts.

5. Cooperation with Fictitious Counterparties

If one of your counterparties is included in the list of risky taxpayers or fails to fulfill tax obligations, this may automatically affect your invoices. Such situations require thorough verification of business partners before entering into agreements.

What to Do If an Invoice Is Blocked?

• Promptly collect primary documents confirming the reality of the transaction.
• Prepare explanations for the tax authorities and submit them together with supporting documents through the taxpayer’s electronic cabinet.
• If necessary, appeal the tax authority’s actions administratively or in court.

To avoid tax invoice blocking, businesses should not only monitor legislative changes but also ensure ongoing legal support. Lawyers can help not only with document preparation but also with protecting your rights against unlawful actions by tax authorities.

The Ukrainian Bar and Real Estate Association provides a full range of tax consulting and business protection services in disputes with the State Tax Service.

Contact us — we will help protect your invoices, reputation, and financial stability.