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Advisors are located on the government interface

An advisor is a person with deep knowledge in a specific area that offers advice to a country's leader. Tasks such as conducting warfare, promoting scientific advancement and managing an economy are three examples of areas an advisor can offer aid.

Advisors can be managed in the Court panel of the Country interface. In EU4 there are 7 advisors for each of the three kinds of monarch power, so there are 21 advisor types in total. Each advisor provides a fixed bonus based on his type. For example, all Traders increase trade efficiency by 10%.

Advisors are further divided by their inherent skill level. Skill ranges from +1 to +3, each providing additional monarch points relative to their level (i.e. a level 2 diplomat provides +2 per month). The cost of hiring and maintaining an advisor increases quadratically with the advisor's skill level. The advisor's skill level affects only the cost and the monarch power generated. The skill level does not affect the advisor type bonus (e.g. a level 1 and a level 3 Philosopher will output the same amount of ).

Advisors eventually die and must be replaced.

A country can only have one active advisor of each type at a time; however, there are ways to increase the pool of options to choose from. In the 1444 start, each country starts with a pool of at least 3 advisor choices for each type. Countries with incomes less than 50 ducats will not have access to level 3 advisors (except by event). Each country has access to at least one skill 2 advisor at start.

New advisors will only arrive upon event or when a free slot is opened, either by increasing the advisor pool or a previous advisor dying. If the Common Sense expansion is activated, the player may also spend the initial cost of hiring an advisor to remove the advisor from court. New advisors will appear at the start of the month.

Notifications can be set to alert the player of the arrival of new advisors. Advisors begin to have a chance of dying once they are past age 40, and new advisors will always be at least age 30. The consequently low rate of replacement means it is typically not worth waiting for an ideal advisor. Picking idea groups that give extra advisor slots can improve the odds of having an advisor with the desired abilities.

If The Cossacks expansion is enabled, it is possible to use the "Recruit Advisor" interaction when the player has at least 40 influence with an estate. The interaction has a cooldown of 30 years, and provides an advisor with a 50% discount to their monthly cost. The advisor may be either level 2 or 3, depending on the player's income.

There are also events and missions that can be a source of new advisors. For example, if a country is overextended, there will likely be a mission to reduce overextension. One possible reward for this mission is a skill 3 Diplomat.[1]

Advisors have a 2% chance of being female.

This can be increased by the following:

Condition
+2 for being the curia controller.
+1 for being a lucky nation (AI only).
+1 for the emperor of the HRE.
+1 for being Reformed.
+1 for being Jewish.
+1 for being Mayan.
+1 with Catholic, Mayan or Jewish as syncretic faith.
+1 for having the Bureaucrat faction in power ( with factions only).
+1 for all player countries if the difficulty is set to ‘very easy’.

Ideas and policies:

+1
• Innovative idea 4: Dynamic Court
• Ajuuraan idea 4: Muslim Migrations
• Aymaran idea 2: Yatiri Healing
• Candarid idea 4: Anatolian Center for Learning
• Chimu idea 5: Artisan Relocations
• Chinese idea 1: The Keju Examination
• Client State idea 7: Foreign Advisors
• Krakowian idea 5: Jewish Communities
• Pskovian idea 1: Veche of Pskov
• Shawnee idea 5: Autonomous Clans
• West African idea 1: Griot Tradition
• Württemberger idea 1: Estates of Würtemburg

Decisions and events:

Event modifier Trigger Duration
+1 Terakoya Japanese event: “Terakoya
Option: ‘Establish Terakoya in all of $COUNTRY$’
until ruler changes.
+3 Golden age of Timbuktu Songhain event: “Golden Age in Timbuktu until ruler changes.
+1 Attracting the right people Bahmani event: “Attracting the right people
Option: ‘Let us double our efforts.’
for 10 years.
+1 Dhimmi Administrators Dhimmi event: “Administrators from the $ESTATE_DHIMMI$.
Option: ‘Let's put these learned men to good use.’
for 15 years.
+1 Elaborate Court Life Nobility event: “The Levee
Option: ‘An elaborate and lengthy ceremony for the most influential.’
for 25 years.

## Cost

Modifiers affecting advisor salaries can be seen in the Economy panel.

An advisor's cost depends on their skill, the current year, and other modifiers (if any). Hiring costs depend on their age, while monthly costs do not. Historical advisors receive a discount to employ.

Active modifiers can be seen by hovering over "Advisors" in the "Expenses" column of the Economy panel. These values show multiple decimals points (see picture for example).

### Monthly cost

The monthly cost of an advisor is calculated from a base amount, which is the square of their skill level (1, 4 or 9). This base cost increases over time by 0.5% every year. Thus by 1644 (200 years), the base costs of 1, 4, and 9 will double to 2, 8, and 18. By the end of game time (1821, 377 years), they will be 2.88 times (base + 188.5% base) the starting value. Any additional increases from modifiers are calculated from this new base cost.

### Hiring cost

The one-time hiring cost is a simple multiple of the monthly salary. The advisor's skill level only enters into the hiring cost inasmuch as his skill level has already helped determine his salary.

As hiring costs are multiples of the monthly cost, they also increase over the years.

The value of the multiplier depends solely on the advisor's age, ranging from a high of 16 at age 30 (the youngest age possible) down to 10 at age 60. (The oldest advisors available in the pool are rarely more than their high 50s.) It is strictly linear, dropping 0.2 per year (a.k.a., a whole point every five years). The advisor's age is used "as is"; there are no hidden fractions for being, e.g., "50 and a half".

${\displaystyle {\text{Hiring cost}}=\left(16-{\frac {{\text{age}}-30}{5}}\right)\cdot {\text{monthly salary}}}$

For more regarding age, see the section on Longevity (below).

### Example

For a 50 year old Skill 2 advisor (base 4 per month) in the year 1544, with inflation of 10%:

${\displaystyle {\text{Base cost}}=4\cdot (1+0.005\cdot 100)=6.00{\text{ per month}}}$

${\displaystyle {\text{Total monthly cost}}=6\cdot (1+0.10)=6.60{\text{ per month}}}$

${\displaystyle {\text{Hiring cost}}=(16-4)\cdot 6.60=79.2}$

Note that these modifiers are applied after applying the change in base cost due to the current year.

• Inflation: +variable%
• Bankruptcy: +100%
• Western Influences (during westernization): +50%
• Ceremonial fire pit (building for North American natives): -50%
−25%
• Full Innovativeness
−15%
• Colonial idea 1: Founding Fathers
• Semien idea 6: Lost Tribe of Beta Israel
• Sumatran idea 4: Center of Scholarship
−10%
• Espionage idea 1: Efficient Spies
• Arakanese idea 6: Muslim Advisors
• Ashanti idea 1: Elder Council
• Candarid idea 4: Anatolian Center for Learning
• Catalan idea 2: Consell de Cent
• Greek idea 4: Greek Diaspora
• Palatinate idea 2: Heidelberg University
• Permian idea 1: Capital of Prikamye
• Ryazan idea 7: Western Contacts
• Somali idea 7: Arab and Persian Influx
• Tirhuti idea 1: Scholars and Poets
• Wallachian idea 4: Foreign Advisors
• Tibetan ambitions
• Innovative-Diplomatic: The Diplomatic Cooperation
• Innovative-Plutocratic: The Education Act

## Types

The bonus and the allowed decisions are listed for each type of advisor.

Hiring a level 3 advisor enables the trigger of an advisor event.

With the Women in History DLC activated, any of the advisors can be generated as female. The chance is flat 2% across the board.[2] There are also some events that can add a female advisor to the pool. These advisors have a silver border around their portrait, as opposed to a golden one. The game allows advisors to be restricted to one gender, but the base game doesn't do this.

Administrative advisors help in situations that are regarded as domestic policy. Their job is to improve a nation internally: reforming the tax system and promoting cultural patronage are two examples.

Artist Stability cost modifier: −10%
Inquisitor Missionary strength: +2%
Master of Mint Yearly inflation reduction: +0.10
Natural Scientist Production efficiency: +10% Found Hall of Worthies
Philosopher Yearly prestige: +1 Found Hall of Worthies
Theologian National unrest: −2
Treasurer National tax modifier: +10%

### Diplomatic

Diplomatic advisors address matters related to the navy in general and foreign policy. Their job is to promote naval advancement as well as conducting foreign diplomacy: increasing a nation's trade competitiveness and repair diplomatic relations are two examples.

Colonial governor Tariffs: +10% The province owner:
• has at least 1 colonist.
• is not a colonial nation.
Diplomat Improve relations: +20%
Naval reformer Morale of navies: +10% The province has a port.
Navigator Colonial range: +20% The province owner:
• has at least 1 colonist.
Spymaster Spy network construction: +25% Hire Ninjas
Statesman Diplomatic reputation: +1

### Military

Military advisors sole function is to enhance a nation's military, offensively and defensively. Thus their job relies on improving a nation's army and overall defensiveness against foreign attackers: implementing logistical reforms and increasing resistance to siege are two examples.

Army Organiser Land force limit modifier: +10%
Army Reformer Morale of armies: +10%
Commandant Discipline: +5%
Grand Captain Land maintenance modifier: −10%
Master Recruiter National manpower modifier: +10%
Military Engineer Fort defense: +20%
Quartermaster Reinforce speed: +33%

## Longevity versus hiring cost

Once an advisor is hired, their tooltip will display their percentage death risk, which depends on their age. Since the hiring cost decreases with age, and advisors have a calculable life span, it is possible to calculate the ideal age to hire an advisor.

For every year over 40, advisors gain 2/3rds of a percent (0.67%) chance of death, or an increase of 2% for every 3 years of age after 40. At age 55, the yearly death risk will be 10%. At age 100, it will be 40%. The percentage is rounded down in the tooltip, but probably not in calculations. This means that at age 41, an advisor's yearly death rish will be 0.67%, but will show as 0% in the tooltip.

${\displaystyle {\text{Yearly death risk}}=\left({\text{Age}}-40\right)\cdot {\frac {2}{3}}}$

The cumulative effects of this are severe (inset at left). By a median age of 53.7, only half of advisors will be alive. By 65, only 1 in 10 will remain. Only 1 in 100 will make it to 75. (This is the overall mortality curve; if an advisor has already survived to 50, their curve is different.)

It is possible to calculate the best value in terms of hiring cost versus longevity (inset at right). It's simple for ages 30 to 40, where the hiring-cost multiplier changes, but the advisors do not die. As mentioned, the median life expectancy of an advisor is 53.7 years. So if an advisor is hired at age 30, they have an expected useful life of ~24 years (until they're 53.7), at a hiring-cost multiple of 16. This provides 1.5 years of useful life expectancy per hiring multiple (24/16). If an advisor is hired at age 40 (hiring multiple 14), they have 14 years of expected life, or 1.0 years per multiple (14/14). Clearly, the 30 year old advisor is the better bargain.

At ages over 40, the mortality curve begins to change; their median life expectancy (expected age of death) increases as their actual age of hiring increases. (An advisor who is already 55 is obviously no longer expected to die at 53.7.) While the Useful Years in the graph was a straight line between ages 30 and 40 (because there is no mortality there), it becomes a curve at 40. Thus, the useful life expectancy drops faster than the hiring-cost multiplier, which means that younger advisors are better. By 50 one has reached 0.59 years per multiplier, and by 60, it is 0.42.

Still, while 30 years may be the best relative bargain, the hiring multiplier only has a range of 10 to 16, which is to say, there's only half a year's salary involved in any case. There will likely not be a significant impact on the player's income, unless they are very low on it.

Here are the portraits of all advisors the player can hire :

Table with all available advisor portraits
Type Advisor Generic male Generic female Cossack male Cossack female African male African female Muslim North American Mesoamerican South American male South American female
Army Organiser
Army Reformer
Artist
Colonial Governor
Commandant
Diplomat
Fortification Expert
Grand Captain
Inquisitor
Master of Mint
Master Recruiter
Natural Scientist
Naval Reformer
Navigator
Philosopher
Quartermaster
Spymaster
Statesman
Theologian
Treasurer

• Generic male advisors are included in the base game. They are European advisors which are used by default for all parts of the world.
• Generic female advisors require free Women in History DLC. They can appear at the court in place of their male counterparts.
• Cossack male advisors require The Cossacks expansion. They can appear if the player owns some of the European or Asian steppes provinces.
• Cossack female advisors require The Cossacks expansion and free Women in History DLC. They can replace the female advisors portraits if the player owns some of the European or Asian steppes provinces.
• African male advisors require Mare Nostrum expansion. They can appear if the player owns some provinces from Africa.
• African female advisors require Mare Nostrum expansion and free Women in History DLC. They can replace the female advisors portraits if the player owns some provinces from Africa.
• Muslim advisors require Muslim Advisors Portraits DLC. They can appear if the player owns some provinces from the Northern Africa, the Near East, or the Persia.
• North American advisors require Conquest of Paradise expansion. They can appear if the player owns some provinces from the Northern America.
• Mesoamerican advisors require El Dorado expansion. They can appear if the player owns some provinces from the Central America.
• South American male advisors require El Dorado expansion. They can appear if the player owns some provinces from the South America.
• South American female advisors require El Dorado expansion and free Women in History DLC. They can replace the female advisors portraits if the player owns some provinces from the South America.

## References

1. Europa Universalis IV Forum: How to acquire new advisors to the pool?
2. From /Europa Universalis IV/common/defines.lua: FEMALE_ADVISOR_CHANCE = 2, -- If Women in History is enabled, chance of an advisor spawning as female
Realm
 Monarch power Ruler • Advisor • Idea groups • National ideas • Technology • Stability • Policies
 Other Decisions • Missions • Events • Modifiers • Disasters • Government • Factions • Prestige • Institutions • Overextension • War exhaustion • Power projection