Group 1 - The article discusses the requirements for filling out invoices in various service sectors, including transportation and construction services, emphasizing the importance of providing detailed information such as service location and project name [2][3]. - It highlights the necessity for real estate transactions to include specific details like property address and rental period when issuing electronic invoices [3]. - The article outlines the procedures for issuing invoices for tax collection, including the need for accurate information on tax amounts and penalties for vehicle taxes collected by insurance companies [4]. Group 2 - The article mentions the implications of improperly filled invoices, stating that taxpayers cannot deduct input tax if the invoices do not comply with legal regulations [6]. - It notes that starting January 1, 2026, the new VAT law will replace the interim VAT regulations, which may affect how invoices are processed and recorded [6]. - The article emphasizes that companies must ensure compliance with tax regulations to avoid issues with tax deductions and penalties [6].