
Effect · every source
How to increase Monthly Income in CK3
6 sources raise Monthly Income and 5 lower it in the game files of patch 1.20.0.3.
monthly_income_multIn Crusader Kings III, 6 sources raise Monthly Income and 5 sources lower it. Biggest raises: Wealth Focus +10%, Greedy +5%, Simonia +5%, Buru-Sula +5% and Bahrein +5%. It goes down with Herder -1000%, Improvident -15%, Generous -10% and 2 more. Patch 1.20.0.3, from the modifiers of traits, perks, traditions, buildings and the rest of game/common.
The biggest boosts
+10%Wealth FocusFocus · Not Adventurer government
+5%GreedyTrait
+5%SimoniaTenet · Characters holding it as a personal tenet
What raises Monthly Income (6)
Traits (2)

Greedy+5%
greedy· game/common/traits/00_traits.txt
Focuses (1)

Wealth Focus+10%
Not Adventurer government
stewardship_wealth_focus· game/common/focuses/00_lifestyle_focuses.txt
Tenets (1)

Simonia+5%
Characters holding it as a personal tenet
tenet_simony· game/common/religion/tenet_types/00_pam_tenets.txt
What lowers Monthly Income (5)
Traits (3)

Improvident-15%
improvident· game/common/traits/00_traits.txt
Generous-10%
generous· game/common/traits/00_traits.txt
Profligate-10%
profligate· game/common/traits/00_traits.txt
Cultural traditions (1)

Charitable-3%
Characters of this culture
tradition_charitable· game/common/culture/traditions/00_societal_traditions.txt
Governments (1)
Herder-1000%
Rulers with this government
herder_government· game/common/governments/00_government_types.txt
Source: game/common/culture/traditions/00_societal_traditions.txt, game/common/focuses/00_lifestyle_focuses.txt, game/common/governments/00_government_types.txt, game/common/religion/faith_types/00_faith_types.txt, game/common/religion/tenet_types/00_pam_tenets.txt, game/common/traits/00_traits.txt and the English localisation, Crusader Kings III 1.20.0.3. Building chains are shown once, at their strongest level, with the range over their levels. Effects that come only from events or scale with a script value are not listed.