Business Fragmentation: How Tax Authorities Detect Schemes

In modern tax practice, business fragmentation is no longer a “gray area.” Tax authorities increasingly treat such structures as a method of obtaining unjustified tax benefits, which automatically places businesses at risk of reassessments, penalties, and disputes.

At the same time, having several companies or sole proprietors is not, in itself, a violation. The key issue is whether each entity operates as a genuinely independent business.

How tax authorities assess business structures

From the perspective of tax authorities, fragmentation is the artificial division of a single business into multiple entities without real economic substance. Typically, this involves replacing one company with a network of smaller entities that benefit from simplified taxation regimes while effectively operating as one business. Authorities do not rely on a single decisive piece of evidence. Instead, they build their case based on a combination of factors — which is precisely what creates the main risks for businesses.

What tax authorities look for

In practice, the most common indicators include:

• shared resources (office, warehouse, equipment);
• centralized accounting or HR functions;
• overlapping staff;
• identical or closely related counterparties;
• centralized decision-making;
• lack of sufficient assets in individual entities.

Tax authorities also analyze how the business presents itself publicly — including websites, branding, and marketing. If the business appears unified to customers but is legally fragmented, this strengthens the case against it.

Digital monitoring and analytics

Modern tax audits often begin long before inspectors arrive. Much of the work is done through data analysis. Authorities review tax invoices, fiscal cash register data, banking transactions, government registries, and open sources. Based on this, they build models of relationships between entities, allowing them to identify patterns such as profit concentration and artificial distribution of revenue.

What happens during a tax audit

During documentary and on-site audits, tax authorities move from analysis to evidence collection.

They focus on the actual substance of the business: who makes decisions, how operations are organized, and whether declared activity matches available resources. Inspectors review contracts, financial flows, staffing, and physical assets. Particular attention is paid to lease agreements, agency contracts, and transactions between related parties.

Consequences for businesses

If fragmentation is established, the consequences can be severe and systemic:

• consolidation of income across all entities;
• retroactive loss of simplified tax status;
• reassessment of VAT and corporate income tax;
• penalties and late payment interest;
• potential criminal liability for tax evasion.

In practice, this may lead not only to financial losses but also to a complete restructuring of the business after the audit.

What matters in practice

Today, the key issue is not the structure itself, but the ability to justify its economic purpose and support it with proper documentation. If each entity has its own resources, makes independent decisions, and conducts real business activity, the position is significantly stronger. If the structure exists only formally, it becomes extremely difficult to defend during an audit.

If your business operates through multiple entities or sole proprietors and you are unsure how tax authorities may assess your structure, it is better to review it in advance. Legal counsel can help assess risks, prepare documentation, and build a defense strategy — which is far less costly than dealing with reassessments and penalties after an audit.