«CRS Echo»: How Automatic Data Exchange Identifies Undeclared Income and Leads to a Tax Lien

Material updated: February 2026

Unlike administrative fines or court injunctions, a tax lien arises within a specific procedure under the Tax Code of Ukraine (TCU). In 2026, the automatic exchange of tax information triggers a procedural chain: identification of foreign income → issuance of a Tax Notification-Decision (TND) → coordination of the liability → emergence of tax debt → a tax lien by virtue of Article 89 of the TCU. If the debt is transferred to enforcement proceedings or an encumbrance record is entered in the SRPR, the notary is obliged to refuse the certification of the transaction. The blocking of alienation remains in effect until the debt is fully settled or written consent is obtained from the State Tax Service (STS).

Why 2026 has become a turning point

A fundamentally new legal reality has formed in the real estate market in 2026. This is due to a complex of factors that began operating simultaneously:

• 2026 became the first period when accumulated arrays of CRS data were mass-transformed into real Tax Notification-Decisions (TND), and the automation of encumbrance registration became unavoidable.
• The first full cycle of processing CRS data transmitted by partner countries for previous reporting periods has concluded.
• A manifold increase in unscheduled tax audits of individuals has been recorded in connection with the identification of undeclared assets.
• Full automation of interaction between the State Tax Service (STS) and the State Register of Proprietary Rights to Immovable Property (SRPR) occurred.
• Notarial practices have tightened: the verification of encumbrances and tax debt status has become an indispensable stage before the certification of any alienation agreement.
• A rise in the number of transactions stopped at the stage of notarial certification due to tax liens has been observed.

Legal mechanism for the emergence of a tax lien

Automatic exchange itself does not block real estate. The restriction of rights is the result of a sequential chain of procedural actions by the state body.

After receiving a TND, the taxpayer has 10 calendar days for administrative appeal (Art. 56 TCU). In the absence of an appeal, the liability is considered coordinated. Subsequently, a period for voluntary payment is granted. Non-payment within the set timeframe forms a tax debt, which becomes the basis for the emergence of a tax lien.

The right of a tax lien arises by virtue of law on the day the tax debt emerges, regardless of whether a record is entered in the SRPR (Art. 89.1 TCU). Entering a record in the SRPR does not create the lien, but merely makes it public.

When a sale is possible / impossible

The ability to dispose of real estate depends directly on the current stage of interaction with the tax authority.

Regulatory framework

Financial consequences

Ignoring STS requests and failing to react promptly to CRS data leads to a multiplication of losses. Non-payment of taxes on foreign income can trigger a comprehensive strategic legal audit of the taxpayer’s history. If the debt moves to the stage of forced collection, the bailiff places an arrest on the property within the framework of the Law “On Enforcement Proceedings,” which further blocks any registration actions.

Practical scenario 2026

In 2024, Citizen A sold a share package through a foreign broker and received interest on a European deposit, but failed to file an annual declaration. At the end of 2025, the STS received data via CRS and sent a request to the registration address in Ukraine, where A. has not resided for a long time. By virtue of Art. 42.5 of the TCU, the request and subsequent TND were deemed served after being returned by the post office. The debt was coordinated automatically, and a tax lien was imposed. In February 2026, A. decides to sell an apartment in Kyiv and accepts an advance payment. On the day the contract is to be signed, the notary sees the lien record in the SRPR and stops the procedure. Result: the deal is ruined, the property is encumbered, and a dispute over the return of the deposit arises.

Pre-transaction verification (Due Diligence)

Verification must be conducted before signing a preliminary contract and handing over a deposit.

A mandatory audit of the objects and subjects of the transaction must be done at least 14–30 days prior to the signing date.

FAQ 2026

Conclusion

In 2026, the automatic exchange of CRS data has become one of the key sources for initiating tax procedures that result in tax liens, affecting the ability to alienate real estate. CRS data trigger a specific tax chain where an unread letter from the STS turns into a coordinated debt, and then into an encumbrance record in the SRPR. If the case reaches the stage of enforcement proceedings, property alienation becomes impossible until all public encumbrances are removed. The key to transaction security today lies not in the notary’s office, but in timely Due Diligence of the seller’s tax history.

Official sources