Source Code
Copy of the .sln file from which the current version was built.
Open with Visual Studio 2019.
In order to build, you must first update the references and under "Properties -> Debug" update "Start external program" and "Working directory"

For installation, just unzip the downloaded file into your
..Mount & Blade II Bannerlord\Modules
(\Steamlibrary\steamapps\common\Mount & Blade II Bannerlord\Modules for Steam users)
folder and select it in the Mods Menu in the Launcher.

Version 1.0.1

Fixes
+ Fixed wrong value for prosperity change on low tax rate

Version 1.1.0

+ Added config file in the Modules\ProsperityTaxes folder, now you can customise the effects of taxes
+ Small visual changes

+ Fixed major bug where tax rates were reset after saving the game in menu overlay