http://www.us-tax-returns-itin-agent.com | Do I need to file Form 5471? If you own 10% or more shares of a foreign corporation, you are required to file form 5471 every year with your income tax return. This applies to an individual who has not taken any income out of the corporation as well. The individual may have deemed dividends for US reporting purposes. If US citizens own over 50% of a foreign corporation and you are at least a 10% shareholder, you should include your pro-rata share of the foreign corporation's income in your US tax return.