Terms on economy of the Imperial household

Privy Purse
Personal expenses not categorized as public funds to be used and accounted for by the Imperial Household Agency (Designated by the Imperial House Economy Law, Article 4 and 6)
The Imperial Court Appropriation
Expenses for the Imperial Family's official duties, including ceremonies, state banquets, receptions, and domestic and overseas visits. These expenses also include those for the management and maintenance of the Imperial Palace facilities and other properties. They are public funds to be accounted for by the Imperial Household Agency (Designated by the Imperial House Economy Law, Article 5).
The Imperial House Economy Council
The council deliberates important matters pertaining to the economy of the Imperial House including changing the amount of the Inner Court Appropriation and the Allowance for Imperial Family members designated by law. The council has eight members: the Speaker and the Vice-Speaker of the House of Representatives, the President and the Vice-President of the House of Councilors, the Prime Minister, the Minister of Finance, the Grand Steward of the Imperial Household Agency, and the President of the Board of Audit.
The State properties assigned to the use of the Imperial House
Properties categorized as administrative properties among the national properties that are or will be provided to the Imperial Family
The Imperial Family Appropriations
An annual allowance provided to each member of the Imperial Families so that the Imperial Families are able to maintain a life style that befits their position. The quantum to be used to calculate the Imperial Family Appropriations are designated by laws. The Imperial Family appropriations will be used as the Privy Purse for each member of the Imperial Family. Other than the Privy Purse, the appropriations will and can be used as a lump sum payment when a member of the Imperial Family establishes his/her independent household, or when a member of the Imperial Family leaves his/her Imperial status (Designated by the Imperial House Economy Law, Article 6 and the Law for the Enforcement of the Imperial House Economy Law, Article 8).
the Inner Court Appropriation
Expenses for His Majesty and members of the inner court of the Imperial Family (Naitei-Kozoku) in daily living and activities. The amount for these expenses is stipulated. Used for the Privy Purse, these expenses are not public funds use and accounting for by the Imperial Household Agency (Imperial House Economy Law, Article 4, the Law for the Enforcement of the Imperial House Economy Law, Article 7).