Overview
It seems it is almost impossible to find a complete guide of what the clan bonuses are anywhere. Thus i created this simple guide, that can be accessed while in the game.
Vanilla Shogun 2
Chosokabe:
Reduced Recruitment cost and upkeep for bow infantry
Superior bow infantry
10% increase to farm income
Shimazu:
Superior and cheaper katana samurai and katana heroes
Increased loyalty for all generals
Hojo:
Superior and cheaper siege weapons
Castles are cheaper to build and repair (-10%)
Mori:
Superior and cheaper ships
increased movement range for ships on the campaign map
Oda:
Cheaper ashigaru units with increased morale
Date:
Superior and cheaper No-Dachi units
+2 to the charge bonus of all units
Takeda:
Superior and cheaper cavalry units with increased morale
Tokugawa
Superior and cheaper kisho ninja
+5 to diplomatic relations
+2% to metsuke success chance
Uesugi:
Can recruit superior and cheaper warrior monks
increased trade income
+2% monk action success chance
Hattori:
Some Hattori units have kisho training which allows them to hide more effectively and to deploy outside the deployment zone
+2% to ninja action success chance
Ikko Ikki
Can recruit special ashigaru units including the loan sword ashigaru
Cant train samurai which are replaced by ronin
Cant recruit metsuke
Ikko monks can cause ikko revolts which cause the province to join your faction if successful
All generals either have the Fanatic (+2 to religious conversion rate) or True believer (+1 to religious conversion rate) trait
Otomo:
Reduced cost for for gunpowder infantry recruitment and reduced recruitment time for imported matchlocks
Reduced costs for missionary actions
Improved conversion speed to clan religion
Fall of the Samurai
Shogunate clans
Sendai:
3 reduction to unhappiness from different allegiance
2 turn reduction to siege surrender time for enemies
+10 to diplomatic relations
1 reduction to resistance from occupation
Jozai:
+2% to the movement speed to all units
10% increased casualties from sabotaging and harassing enemy armies
+6 max yugekitai units
armies can replenish in enemy territory if they do not suffer attrition
Aizu:
-10% to castle construction costs
-10% to the recruitment costs of traditional units
-10% to shinshengumi action cost
+1 experience for traditional units
Nagaoka:
+10% to income from business chain buildings
-15% to the recruitment costs of modern units
+5% to geista action success chance
+15% reloading skill for rifle units
Obama:
+2 to the experience of defending garrison units
-10% to the upkeep cost of all land units
+2 to repression across all provinces
+5% increase in tax income
Imperial clans
Satsuma:
5% reduction to administration costs
15% increase to general influence radius
-10% of foreign veteran action cost
Tosa:
+10 to diplomatic relations
-1 to resistance to occupation across all provinces
+2 naval bombardment range
+2 experience to all ships
Choshu:
-10% to ishin shishi action costs
-10% to the cost of modern units and military buildings
25% increase to income from looting
+3 charge bonus for all units
Saga:
+5 to artillery accuracy
Upkeep and recruitment of ships is 10% cheaper
+20% to growth from industrial buildings
Starts with a trading port
Tsu:
+2% to allegiance conversion rate
+1 melee defence for all units
+3 to the maximum number of kisho ninja
-10% to the cost of shinobi actions
Rise of the Samurai
The Minamoto
Kamakura Minamoto:
+10% reload rate for samurai units
Start with bushi art already mastered
+20% to budo (military) arts mastery rate
-20% to samurai unit upkeep
Kiso Minamoto:
+20% campaign map movement range
-1 to samurai unit recruitment time
-20% to the rate at which bunka (civil) arts are mastered
Start with bushi art already mastered
The Taira
Yashima Taira:
+20% to campaign map movement range for ships
-20% to overall cost of ships
Starts with koryu art already mastered
+15% to income from trade
♥♥♥♥♥♥♥♥ Taira:
+1 armor for naginata units
-20% to naginata unit upkeep
Starts with koryu art already mastered
Starts with a “large” domain
The Fujiwara
Kubota Fujiwara:
+10% to the recruitment cost of levies and attendants
Can recruit superior warrior monks
+30% to the rate at which bunka (civil) arts are mastered
Starts with poetry and literature alredy researched
Hiraizumi Fujiwara:
-20% to junsatsushi action costs
+10% to junsatsushi action success chance
+5% tax income
Starts with rice loans art already mastered