The annual report of Pinduoduo online store can be viewed and downloaded by logging into the Pinduoduo merchant backend, entering "Financial Management" - "Tax Management" - "Invoice Management". At the same time, it is necessary to file in the tax bureau's online reporting system and pay the corresponding taxes on time.

When filing, it is necessary to provide financial information such as operating income and expenditure, assets and liabilities, and business licenses and other certificates related to the online store. Before filing, you can consult a professional tax consultant or tax agency to ensure the accuracy and compliance of the filing.