I have expenses that occur over time for inventory items that I start selling prior to when all the costs have been charged to my company.  I know what the total of these future charges (costs) will be.  How do I set up a system in QuickBooks to charge the inventory item these costs before I am billed, and then how do I relieve this charge when I actually get the invoice for the expense?  Is this an accrual process?

An example (but not my situation) might be that you will be charged a storage fee for a present, fixed period of time, say it is billed monthly, and want the inventory that is sold to reflect this expense from the start.

Thank you!