S4F backoffice patch is intended for users who have already installed S4F backoffice and are intended to update existing installations to latest version. To do so apply only patches that are marked with version number that is newer than your currently installed instance of backoffice. Please make sure to install all available patches sequentially (without skipping). This package contains instruction, release notes, changelog and software packages required for deployment of this software component. Read more

Bulgaria will adopt the euro on January 1, 2026, with key transitional dates including dual pricing starting August 8, 2025, and a one-month dual circulation period in January 2026. During this time, prices must be shown in both BGN and EUR, but dual invoicing is not required, and from January 2026, transactions and accounting will be conducted in euros. Read more

Bulgaria will officially adopt the euro on January 1, 2026, at a fixed rate of 1 euro = 1.95583 leva, becoming the 21st eurozone member. To support the transition, the government has launched an official website and currency calculator, while the Bulgarian National Bank has begun minting euro coins. Bulgaria is finalizing preparations to adopt the euro as its official currency on January 1, 2026.... Read more

On July 2, 2025, Bulgaria adopted an updated National Plan for the Introduction of the Euro, reaffirming its target to join the euro area on January 1, 2026. The revision reflects recent technical progress, institutional coordination, and alignment with EU convergence reports confirming Bulgaria’s readiness for euro adoption. On July 2, 2025, the Government of Bulgaria officially adopted an update... Read more

Bulgarian authorities are intensifying inspections of retailers to prevent unjustified price hikes ahead of the country’s euro adoption on January 1, 2026, with over 150 outlets already checked and data forwarded to competition and consumer watchdogs. The National Revenue Agency is also cross-verifying VAT data to detect irregular pricing, while mandatory dual currency display on receipts will beg... Read more

Starting January 1, 2026, Bulgaria’s NRA will require large taxpayers to submit accounting data using the standardized SAF-T format, with around 460 companies already notified. Pilot testing will begin soon, and a new electronic service is being developed to support SAF-T submissions ahead of full implementation.   Starting January 1, 2026, the National Revenue Agency (NRA) will introduce ch... Read more

Bulgaria has amended Ordinance No. N-18 to support the upcoming euro adoption and modernize fiscal regulations. Key changes include allowing fiscal receipts to display totals in currencies other than the official one, enabling electronic receipt generation through integrated systems, and enhancing flexibility for fuel stations using different electronic fiscal memory systems. Read more