国有土地使用权出让收入

Group 1 - The article discusses the obligations related to the payment of land transfer fees for state-owned land use rights, including various scenarios such as transfer, mortgage disposal, and changes in land use conditions [4][5][6]. - It specifies that the payment standards are based on amounts verified by the natural resources department, which must be clearly stated in the land transfer contract [5]. - The payment deadlines are outlined, indicating that taxpayers must declare and pay before the deadline specified in the tax authority's payment notice [6]. Group 2 - It details who is required to pay the land transfer income, including individuals and organizations that have legally obtained or leased state-owned land use rights [6][8]. - The process for declaring and paying land transfer income is described, where the natural resources department provides information to the tax authority, which then issues a payment notice [6]. - Procedures for refunding land transfer income are also included, allowing taxpayers to apply for refunds in cases of overpayment or policy changes [7].