合法纳税9大要点丨复式账VS简易账，账簿设置要点看这里

Core Viewpoint - The article discusses the requirements and regulations for individual business owners in China regarding the establishment of accounting books, specifically the differences between double-entry and simplified accounting systems, as well as the necessary procedures and timelines for compliance [2][3][4]. Group 1: Accounting Requirements - Individual business owners must set up double-entry accounting books according to the "Interim Measures for the Management of Accounting Books for Individual Business Owners," which includes a general ledger, detailed ledgers, and journals to accurately record financial transactions [2]. - For simplified accounting, business owners are required to maintain records of operating income, operating expenses, purchases, inventory, and profit statements, reflecting their production and operational status [2]. Group 2: Changes and Formats - The accounting method can be changed, but there is a time limit; once a method is chosen, it cannot be altered within the same tax year [3]. - Double-entry accounting books must use bound formats for cash and bank journals, while other books can be in loose-leaf format based on actual business needs. Simplified accounting books must also be in bound format [3]. Group 3: Reporting and Deadlines - Individual business owners using double-entry accounting must submit financial reports and tax materials to the local tax authority within specified timeframes: monthly reports within 10 days after the month ends and annual reports within 30 days after the year ends [3]. - Business owners must establish their accounting books within 15 days of obtaining their business license or incurring tax obligations, and they are prohibited from falsifying or destroying accounting records [3][4]. Group 4: Professional Assistance - Individual business owners can hire qualified accounting firms or professionals to assist with bookkeeping and financial management if they are not capable of doing it themselves [3].