While I was on vacation, my company received our property tax bill and the owner used "Write Checks" to pay it but didn't enter the actual bill into QuickBooks. 

The check has been marked as cleared and the account (checking) has been reconciled.

We obviously want a record of the tax bill but how can I enter it without having it show as unpaid?

I've only been using QuickBooks for a couple of years so any advice would be welcome!