All administrators should monitor encumbrances regularly to make sure they get liquidated appropriately.
Pay special attention to encumbrances a few months before grant ending to make sure they are liquidated in a timely manner to ensure grant closeout.
The University cannot bill for encumbrances. If an invoice is not received so that a transaction can process the amount from encumbrance to expense status, that amount will not be included in the bill to the funding agency. If the amount is expensed later, it will have to be transferred to another account or billed in the next year, if the account is still active.