470.4. If a manager and an investment plan have made an election referred to in the first or second paragraph of section 470.2, as the case may be, and, on a day on which that election is effective, the manager is required to file a return for a reporting period in accordance with the third paragraph of that section or the manager files a return for a reporting period of the investment plan, the manager and the investment plan are solidarily liable for any amount owing for that reporting period on account of the net tax and for any interest or penalties in respect of such an amount or in respect of the filing of the return.