Serbia’s April 2026 regulatory updates to electronic invoicing and VAT accounting introduce a more rigid and technically precise framework for transactions conducted in foreign currency, closing long-standing ambiguities that had created compliance risks for companies operating across currencies.
The amendments to the Rulebook on VAT and the Rulebook on Electronic Invoicing apply to tax periods starting from April 1, 2026, meaning they are already binding for monthly taxpayers from April and for quarterly taxpayers through the April–June period.
At the core of the reform is a stricter alignment between the currency of payment and the currency of reporting, particularly in the structure of e-invoices and VAT calculation.
When a transaction is fully settled in foreign currency, companies are now allowed to express the tax base, VAT, and individual invoice items in that same foreign currency. However, the system introduces a non-negotiable requirement: total invoice amounts—including base, VAT, and consideration—must always be simultaneously presented in Serbian dinars (RSD).
This dual-reporting obligation effectively formalizes what had previously been interpreted inconsistently in practice, ensuring that tax authorities maintain a uniform dinar-based control layer regardless of transaction currency.
The framework becomes more restrictive in mixed-payment scenarios. If a transaction is partially or fully settled in dinars, all invoice elements—both individual line items and totals—must be expressed exclusively in dinars. This eliminates flexibility that some companies previously used when structuring cross-border or hybrid-currency transactions.
Parallel amendments to the electronic invoicing system (SEF) further standardize how values are displayed. While unit prices may now be expressed with more than two decimal places, all other monetary values remain capped at a maximum of two decimal places, reinforcing consistency in VAT calculation and reporting.
The regulatory intent is clear: tighter control over VAT reporting accuracy, especially in cross-border and FX-linked transactions, where rounding, exchange-rate application, and inconsistent reporting formats previously created discrepancies.
Additional clarifications address complex operational cases. New rules define how to treat transactions involving advance payments, internal VAT accounting, and corrections of tax records, all of which must now be processed within the electronic invoicing system to ensure traceability and consistency.
However, the transition has not been without uncertainty. One unresolved issue concerns the treatment of invoices issued after April 1 for transactions completed before that date, with no explicit guidance on whether old or new rules apply in such cases. This creates a temporary compliance grey zone for companies with cross-period transactions.
From a practical standpoint, the changes significantly increase the compliance burden on companies operating in multiple currencies. Businesses must now ensure that invoicing systems, ERP integrations, and accounting procedures are fully aligned with the new dual-currency reporting logic, particularly in sectors with high exposure to foreign currency flows such as trade, energy, and services.
At the same time, the reforms strengthen legal certainty. Clearer rules on currency presentation, VAT calculation, and invoice structure reduce the risk of disputes with tax authorities and limit the possibility of incorrect VAT deductions—an area that had previously exposed companies to financial penalties.
The broader implication is structural rather than technical. Serbia is moving toward a more standardized, EU-aligned VAT reporting environment, where electronic invoicing becomes not just a reporting tool but a real-time control mechanism for tax compliance.
In that context, the April reforms signal a shift from flexibility toward precision: less interpretative space for taxpayers, but a more predictable and enforceable framework for cross-currency transactions.
