Accounting year Year considered for accounting of the treaty or portion of the treaty. Invoicing period Period for which an invoice is issued. Accounting period A period of time for the recording of financial transactions for accounting. Tax period Period a tax rate/tax amount etc. is applicable. Trial balance period Period covered by the trial balance. Chart of account period Period covered by the chart of account. Balance data/time/period The date/time/period of a balance. Report period Period covered by the report. Fiscal consideration period A period of time for fiscal consideration.