Leveraging tax big data, Shandong tax authorities identified that Mr. Zhang had neglected to declare his overseas income. Following verification, Mr. Zhang was required to pay an additional tax of 1.2638 million yuan, along with overdue fines. The tax authorities emphasize to all residents that individual overseas income must be declared and taxed between March 1st and June 30th of the subsequent year. For tax-related issues, measures such as reminders and urging for rectification will be implemented, with legal action awaiting those who refuse to comply.