According to the requirements of taxation and corporate finance, the expenses of the current year must be reimbursed before 65438+Feb. 3 1, otherwise it is an inter-period expense. Generally, last year's expenses can also be reimbursed before the beginning of the year 10, depending on the financial requirements of the unit, because there are many things that need to be handled by the finance department at the end of the year and the beginning of the year, so it is impossible to wait for reimbursement for a long time.