Military Budget Factor is CS p.9 makes up a percentage of the Entity's Revenue equal to MBF*2. Basically CR 6 (wartime) budget means that the Entity is channeling everything (100%) to Military while peacetime CR6 is about 40% of the revenue generated by the entity.
Note that people don't really get paid monthly because the number of transactions over time increase inefficiency and the total cost of transaction (look up transaction velocity). So typically you really would be looking at Annual Incomes instead of monthly incomes. Actually in GURPS mass combat it is really MUCH better to look at things in annual.
Taxation in Low Tech.Monopolies and Price Control are effectively a form of taxation. (practiced even up to now, and in the Philippines practiced until the end of the 19C ). The Incomes in GURPS is just the "take home", since the incomes in the basic set values still was enough to buy food and very basic basics. In low tech 75% of Income of struggling wealth went to Food and a Lord won't get much out of their tenants after this. Typically taxes were already extracted before any payment to the farmers, simply because its harder to chase after a farmer that got too much compensation and its better to err on the lord's coffers.
Basically the Income of the Peasant (Status -1) is not what is taxed from him, but this is his take away.
If you are measuring any low Tech holding, you measure it by the number of FAMILIES not individuals because: of a population 20% is are the adults able to work, and 80% are those unable to do full work load (Children and Old people). Even women were not fully counted as "working adult" although when their husbands, sons, brothers, or fathers are forced into fighting for their lord it still doesnt change the required work output.
Total Revenues is equal to Population * 0.2 (to get the adult population and the number of families) * 0.5 * Struggling income.
Boils down to Population * $30 * 12 months
In Low Tech its what ever is the average Income. In the end it doesnt matter, its all $300 because if its a Slave it does work as any other person but only gets to take home $120, if its a Serf he only gets to take home $300, if its a landed freeman then he still pays about the same tax as the Serf. Higher and Higher status pay less and less taxes relative to their wealth, and then there is corruption. So its easier to count everyone as Struggling or $300 like in Building Low Tech landscapes.
HouseholdsIts better to look at things as house holds. its easier to fudge the demographics this way for many purposes. Divide by 5 and use the Pop value or Household value.
Looking at an entity like a HomeThe simplest way to look at Entity finances is breaking it down into: Housing (includes House keeping) and Security Force. Low Tech entities is typically CR6! (since DND confuses medieval with wild west america, its has created this impression of "freedome" lolz which is really not the case). If not the Lord, even his security advisor (wife, brother, aged father etc...) would implement measures to prevent controlled substances and goods from going into the wrong hands.
40% Security Force. This means take a Region, calculate revenues based and use that to budget the Security force.
the rest is either Pocketed. Converting Revenues to "Cash" half the value.
Housekeeping aka AdministrationThis is money that goes into the Community in the form of infra, walls, roads. forum, market, employed civil servants etc... The GM sets these values, since they can be very variable he needs only to roll or make up his mind. As a rule of thumb the GM can set the following Values.
50% on administration which has a loss to corruption equal to the Chief Administrators Skill minus 15 * 5%. So a Skill 12 typically suffers corruption of 15%. (the GM should make talented administrators Rare, Taken, or severe drawbacks ex. a skilled administrator but of a minority ethnicity).
Once you get the Net value of Administrative Budget, roll for how many years. 2d*2 and add another die when you roll a 6, and every time you roll a 6. This is the value of the "Built Up Infra. Typically work is measured in man days, use $300 divided by 20 which is $15 equals to the man days.
Cibotus aka Apamea (Phygia) (a region and feif; with a town at its center called Cibotus)
Population: 1,600 housolds
Physical and Magical Environment
Terrain: Mountain, Coast, Lake
Appearance: Attractive (+1) Hygiene: +1
Culture and Economy
Language: Greek Literacy: Broken
Wealth: Average Status: -2 to 4
CR: 6 (Corruption -1; Administrator-12)
Annual Revenues: $2.88M (minus 0.432 lost to corruption)
Military Resources (annual): $576K DB:*
rolled 6, 4, 4 = +4
Some old roman fortifications still exist.
Population.Lets look at regions instead of Towns or Cities, because it's easier. In Medieval Demographics made easy population density divide the values in square miles by 2.6 for Metric kms. 11C Anatolia would have made the recovery since Justinians' plague at 28/sqm.
Take your Regional Center, the town, city or market village, and multiply it by 10. That's your population for the region. Cibotus would be around 800 people or 160 homes, a large village. By the Fortification roll, maybe one built over an old greek or roman port a few hundreds years old.
working back, about 285 sqkm region.
Quickly Build Full Time Starting Security Force.
Most forces are Levies, so what you end up doing is really taking your military budget and looking at how many "full time warriors" you can field. Basically these are people who can serve full time.
Your Levy Force is your Population * 0.075 (75% all males able to fight). Just keep this in the notes.
Step 1: Take your Population * 0.006
This is the number of people that can serve, and most probably perform work as warriors.
Example (Cibotus) 48 people or 5 elements rounded up.
a) either roll the number of elements in the table 5x OR
b) choose what will fit your budget.
if what you roll is up out of budget, assume they were there for the day
Roll 3d6 (roll as many times as you have elements)
3-6 Pikemen $144k
7 Bowmen $96k
8 Light Infantry $96k
9 Heavy Infantry $96k
10-13 Medium Infantry $72k
14 Poor Average Heavy Cav $240k
15 Light Cav $240k
16 Medium Cav $360k
17 Horse Archers $288k
18 Gain an extra roll.
a) I chose to budget: Light Cavalry, 4x Medium Infantry = $528/576k
b) I chose rolling:
13, 12, 10, 11, 11, x5 Medium Infantry
all in budget.
lets try another round
11, 13, 9, 10, 5
Med Inf, Med Inf, Hvy Inf, Med inf, Pikemen
Step 3 the Levy.
Levy is made up of 0.0075*Pop. Use the same table to roll up the levy force.
60 or 6 Elements. Roll 6x
6, 17, 10, 14, 11, 12
Pikemen, Horse Archers, Med Inf, PA Hv Cav, Med Inf, Med Inf.
So basically Cibotus looks like a back water region, with just Medium Infantry as a standing force, but on closer look they are many Landed Cavalry men (the dice odds are less 10% for cavalry men in the levy, this region has 2 out of 11! a very good roll). its easy to fail an Intelligence analysis check when scouting this region and assessing its opposition.
With the extra money, consider getting mounts, draft team or Naval Elements. $216 can afford Large Boats $12k eachor a Light Galley at $168k annual.
Full time force is 5 elements. Levy is 6 elements for a total of 110 people at about 1.3% of the population. The Male adult population is about 20% so thats 1.3 : 20 are fighters. of course more can be made into warriors, but that will be at the expense of productivity.