Core Viewpoint - The article emphasizes the importance of declaring unbilled income for tax compliance and outlines the potential risks associated with non-compliance, including penalties and reduced tax credit ratings for businesses [9][10]. Group 1: Importance of Declaring Unbilled Income - According to the "Interim Regulations on Value-Added Tax of the People's Republic of China," the tax obligation for value-added tax arises on the day of receiving payment or obtaining a sales receipt, regardless of whether an invoice has been issued [9]. - Small-scale taxpayers must consolidate all sales income, including both billed and unbilled income, to determine eligibility for tax exemptions [11]. Group 2: Risks of Non-Compliance - Non-compliance with tax declaration regulations can lead to severe penalties, including fines ranging from 50% to five times the amount of unpaid taxes, and potential criminal charges for tax evasion [10]. - Actions such as falsifying records or failing to declare income can result in a downgrade of the taxpayer's credit rating, affecting their ability to obtain invoices, participate in tenders, secure financing, and apply for subsidies [10]. Group 3: Tax Declaration Procedures - For small-scale taxpayers with quarterly sales not exceeding 300,000 yuan, they are exempt from value-added tax and should report this in the designated section of the tax declaration form [12]. - If quarterly sales exceed 300,000 yuan, taxpayers must report the applicable value-added tax in the appropriate sections of the tax declaration form [14]. Group 4: Handling Unbilled Income - When issuing invoices for previously unbilled income, businesses should adjust their tax declaration by reducing the corresponding sales amount in the relevant sections of the tax form [16][18]. - General taxpayers can reflect unbilled income in the designated columns of the tax declaration form for the current period [18]. Group 5: Other Tax Types - For taxes other than value-added tax, there are no special rules for declaring unbilled income; taxpayers must adhere to the established obligations and deadlines for each tax type [21].