Disposal of a Partnership Interest: When Exiting a Joint Project Becomes a Tax Issue

In January 2026, the Tax Administration published an Opinion that further clarifies the tax treatment of the disposal of a partnership interest, an arrangement often used in practice for joint real estate investments, particularly in situations where a project is carried out among friends or family members.

The reason for issuing the opinion was a case of a joint real estate investment in which individuals established a partnership with the aim of constructing an apartment building by the sea. The facts of the case can be summarized as follows:

• the partnership was established in spring 2025 between six individuals
• one of the partners contributed their own land to the project
• the other partners contributed financial resources and expertise
• the goal of the project is to build a building with six apartments of equal size
• upon completion, each partner should be allocated one apartment
• at the time of the inquiry, the building was only partially constructed
• one of the partners wishes to withdraw from the partnership with the consent of the others
• their share is to be taken over by a new partner, who would compensate them for the investments made to date
• part of the invested funds is not supported by proper documentation

At the core of the tax dilemma was whether such compensation constitutes taxable income and, if so, on what basis.

In its opinion, the Tax Administration relies on the provisions of the Personal Income Tax Act governing income from capital gains. Under these provisions, a capital gain is defined as the difference between the agreed sale price of financial assets and their acquisition value.

It is important to emphasize that the law, in addition to shares in companies, also treats as financial assets interests in other forms of association if the manner of disposal of those interests is comparable to the disposal of shares in capital companies. Based on this legal foundation, the Tax Administration confirms in this opinion that a partnership interest, although a partnership does not have legal personality under the Obligations Act, may be considered a financial asset for tax purposes. Consequently, the withdrawal of a partner with compensation is treated as a disposal of an interest that may result in a taxable capital gain.

A key element for the emergence of a tax liability is the timing of the disposal. If the partnership interest is disposed of within a period shorter than two years from the date of concluding the partnership agreement, the difference between the compensation received and the acquisition value of the interest is subject to taxation. If more than two years have passed since the agreement was concluded, such a capital gain is not taxed.

The particular importance of this opinion lies in the fact that the Tax Administration clarifies the criterion under which a certain right is considered a financial asset for tax purposes. What is decisive is not the formal legal qualification of the relationship, but the actual characteristics of the right being disposed of. If a certain right has the characteristics of an interest, especially the ability to transfer an economic benefit in exchange for compensation, it may be classified as a financial asset.

This conclusion has broader implications in practice, as it shows that the Tax Administration does not rely solely on the formal legal form of a relationship when making tax qualifications, but rather on its actual characteristics. If a certain right has the characteristics of an interest—particularly the ability to transfer economic interest for consideration—it follows that, for taxation purposes, it may be treated as a financial asset, regardless of the fact that it is not a share in a company. This confirms an approach according to which the economic substance of the transaction, rather than its contractual or nominal classification, is decisive for tax treatment, making this opinion potentially relevant beyond the specific factual circumstances in which it was issued.

A particularly important issue in this opinion is the determination of the acquisition value of the interest. The Tax Administration clearly states that only those contributions for which the taxpayer holds reliable documentation, such as invoices or other proof of payment, may be recognized as acquisition value. Contributions that are not documented cannot be taken into account when determining the tax base, which in practice may lead to a significantly higher amount of taxable gain than the taxpayer might expect.

If the conditions for taxation are met, personal income tax on capital gains is paid at a rate of 12%. The disposal of the interest must be reported to the competent office of the Tax Administration within eight days, while the tax itself is paid based on a decision of the Tax Administration, within 15 days from the date of its delivery.

With this opinion, the Tax Administration has not changed the tax framework but has confirmed and specified the application of existing legal provisions to partnerships. In doing so, it has further clarified the tax treatment of situations that occur in practice but have often been misunderstood until now.