I see that it's currently possible to report payments and tax information manually from the App Store Connect user interface, per the 'View Payment Information' section of the App Store Connect help documentation.
Is there any way to retrieve this information programmatically, either via the REST API or the Reporter command line tool?
The 'Finance' reports that are available through the developer tools show developer proceeds in the original currency of the transaction, not in the developer's currency post-conversion. Without currency conversion and tax information, the 'Finance' reports are not particularly useful for accounting purposes.