July 10, 2021 07:41 Updated Follow No, this is an option, not a requirement. Related articles Will a Purchase Order work for an encumbrance? Can payroll be encumbered? What do we do if there is an unpaid contract and appropriation has been used? Encumbrances for payroll: Does this have to be done? Is it 10 calendar days or 10 business days as code says 10 days for public notice of proposed additional appropriations?