1. Inquired by official website, State Taxation Administration of The People's Republic of China, People's Republic of China (PRC), according to the Law of People's Republic of China (PRC) on Tax Collection and Management, ordinary invoices of small-scale taxpayers whose income is less than 500,000 yuan should be subject to 3% VAT, that is, the tax on ordinary invoices of 500,000 yuan should be 15000 yuan.
2. Considering the income tax, first of all, according to the individual income tax law, a natural person should pay an individual income tax of 5,000 yuan when issuing an invoice of 500,000 yuan.
3. According to the Enterprise Income Tax Law of People's Republic of China (PRC), the taxable amount of enterprise income tax is 500,000 yuan multiplied by 5%, which is equal to 25,000 yuan.