Serbia’s tax uncertainty around cryptocurrency loans: where taxable events can multiply

Serbia’s expanding use of cryptocurrencies in financing—especially loans denominated in crypto or secured with crypto collateral—has created a tax landscape that is difficult to standardize. Although Serbian legislation recognizes digital assets, the tax treatment of crypto-based loans is not explicitly set out, leaving taxpayers to rely on broader principles governing digital assets, capital gains and contractual arrangements.

Classification drives the tax result

The starting point is how the transaction is legally and economically characterized. A cryptocurrency loan may be treated as a conventional loan (a debt relationship) or as a transfer of digital assets. That distinction matters because it determines which parts of the arrangement are likely to be viewed as taxable.

If the structure is a genuine loan—where the borrower returns the same quantity of crypto assets—the principal itself is generally not treated as taxable income. However, even then, the timing and mechanics of any cryptocurrency transfer can still be relevant, since transfers of cryptocurrency in Serbia are often treated as taxable events depending on whether ownership is considered to have changed.

Interest payments create recurring valuation exposure

The most direct ongoing tax implications typically come from interest. Where interest is paid in cryptocurrency, it is generally treated as income for the lender and subject to taxation under rules applicable to capital income or other income categories, depending on how the parties are legally structured. Serbia requires valuation in dinars at the moment of receipt, which introduces exposure to exchange-rate volatility between crypto and fiat currency.

For borrowers, interest paid in crypto may be recognized as an expense. Deductibility depends on factors such as whether the borrower is a legal entity, entrepreneur or individual, and whether the transaction satisfies arm’s-length standards and documentation requirements.

Repayments can trigger capital gains even when they look like debt settlement

Capital gains taxation adds another layer of complexity. In Serbia, cryptocurrencies are treated as property for tax purposes. As a result, any disposal—whether a sale or another form of transfer—can trigger capital gains tax based on the difference between acquisition value and disposal value.

This becomes particularly problematic if loan repayment involves returning cryptocurrency whose market value has moved since acquisition. Even if repayment is economically a settlement of debt, it could still generate a taxable capital gain or loss under property-based rules.

Collateral enforcement may be treated as a taxable disposal

Collateralized crypto loans introduce additional risk points. If a borrower pledges cryptocurrency and defaults lead to enforcement by the lender, that enforcement can be treated as a taxable disposal event for the borrower, potentially triggering capital gains tax. The lender’s tax position may also depend on how collateral realization is handled and recorded.

Compliance expectations focus on substance over form

Given the lack of detailed crypto-specific guidance for loans, compliance becomes central. Serbian tax authorities are likely to assess arrangements based on whether they are clearly defined as loans rather than disguised transfers; market valuation at key moments (loan issuance, interest payment and repayment); transfer pricing rules where related parties are involved; and anti-money laundering (AML) compliance due to heightened scrutiny of crypto flows.

The absence of standardized guidance increases interpretation risk—particularly in complex structures involving cross-border counterparties or hybrid instruments such as convertible crypto loans or tokenized debt.

Why structuring matters: multiple taxable triggers

In practice, the overall tax burden of crypto lending in Serbia can be higher than expected because several stages may produce taxable outcomes: initial transfers, interest accrual through crypto payments, and valuation differences when repayments occur. To manage this risk, market participants increasingly use hybrid models—for example, denominating loans in fiat while using crypto as collateral—to reduce unintended exposure under property- and transfer-based rules.

As digital finance develops further, Serbia is expected to refine its regulatory and tax framework. Until then, crypto-based lending remains highly technical and risk-sensitive: legal structuring choices, valuation methodology and tax planning can directly determine financial outcomes for lenders and borrowers alike.