Budget Check based on PO Delivery Date

My users are currently facing an issue with PO creation. They are unable to save their POs as the Delivery Date for the line items in the PO has been set to next year. It would seem that the budget check is based on the Delivery Date in the PO, not the Document Date. The company I work for does not does not allocate budget beyond the current year. We perform annual budgeting.

Is there a workaround or some configuration setting for this? Your assistance is much appreciate.