QUESTION: Taxes in investing: when do you need to file a tax return yourself?
Filing a 3-NDFL tax return independently for investments is required in situations strictly defined by law, where the broker or management company cannot automatically withhold income tax. To approach this process properly, it is useful to calculate the base scenario and stress scenario in advance, allow a 10–20% time buffer for potential bureaucratic delays, and decide beforehand which specific expenses or documents you will need first.
You must file a tax return yourself in the following main cases. First, if you received income from foreign sources, such as dividends from foreign stocks in accounts with foreign banks or even with Russian brokers if the dividends were paid to foreign details and the tax was not withheld automatically. Second, independent income declaration is required when selling property or securities if the broker is not a tax resident of the Russian Federation. Third, a tax return is filed to claim tax refunds through tax deductions, such as the type A IIS investment deduction or the long-term holding deduction for securities.
To ensure that filing your return goes smoothly and successfully, it is recommended to follow a simple procedure: