A free mod for Mount & Blade II: Bannerlord, by Lumintorious.

Settlement Finances is a mod for Mount & Blade II: Bannerlord that provides some help to players and their clans in terms of finances. It allows you to set up a bank in your world, as well as to invest in various things, such as the economy of your village, the production of caravans, or even the growth of your clan. 

This mod features full income support in the gold increase menu. With this, you will also be able to invest in villages and earn passive income. This mod is very helpful for players who want to get a better idea of how the world economy works.  This mod is compatible with some other mods, such as Light’s Prosperity, Bannerlord Tweaks, Kaoses Troop Wages, and more.