The budget balance of your territory is the result of all incomes and expenses specific to this territory such as taxes, alaries and maintenance costs.
Budget can also be negatively affected by Waste. It represents incomes lost to tax fraud, bad management, corruption and 'black economy'.
Economy
Taxe incomes
Taxe incomes - Total amount of tax generated from the sales of goods and services.
Waste
Waste - a result of low territory administration. It represents incomes lost to tax fraud, bad management, corruption and 'black economy'.
Local administration
Having a value of less than 100 for your administration will create waste.
State's corruption
Waste created by weak or negative state power.
Population's corruption
Waste created based on population.
Waste reduction services
By using the 
Tax Collector you can gain up to 30% waste reduction.
Bonus = 30 * Population access %
City upkeep
Buildings upkeep
Cost of upkeep for all building with an upkeep cost.
Infrastructures upkeep
Cost of walls.
State salaries
Cost to pay all current state workers.