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 has updated its Euro Introduction Law, setting a one-year dual pricing period from August 8, 2025, to August 8, 2026, during which prices must be shown in both BGN and EUR with identical formatting. Businesses have a two-month grace period (until October 8, 2025) before fines apply for violations such as missing dual labels or unjustified price increases, with strict anti-speculation rules in place until August 2026. Read more

To ease Bulgaria’s transition to the euro on January 1, 2026, starter packs of Bulgarian euro coins will be available from December 2025—priced at 20 leva for individuals and 200 leva for businesses, based on the fixed exchange rate of 1.95583 leva per euro. Businesses can also access larger euro supplies through pre-supply agreements starting in November to support a smooth currency switch. Bulga... Read more

Bulgaria has extended the deadline for displaying taxi fares in both leva and euros to October 30, 2025, due to industry concerns over updating more than 20,000 taxi meters before the original August 8 deadline. This extension supports Bulgaria’s broader euro adoption plan for January 2026, with new fare stickers and regulatory updates under public consultation. The Bulgarian government has extend... Read more

Bulgaria’s National Revenue Agency (NRA) has issued a new order detailing how selected companies must submit tax data using the Standard Audit File for Tax (SAF-T), effective January 1, 2026. The order includes sample XML formats and clarifies that the SAF-T applies only to standard accounting records, not fiscalization data, with support provided via a dedicated NRA contact channel. The National... Read more

As Bulgaria prepares to adopt the euro, the Ministry of Finance has set clear rules for fiscal receipt formatting during the transition. Until December 31, 2025, receipts must show prices in leva with a euro equivalent. From January 1 to December 31, 2026, this order reverses, euro becomes the primary currency, with leva shown as a reference. With the official transition to the euro underway, the... Read more