When do you prepare a trial balance?

I can't actually do on here for you, however I can explain what a Post Closing Trial Balance is and how to get one. A Post Closing Trial Balance is a Trial Balance that is prepared only after all.

1)It helps to check for arithmetical errors (Whether if Dr & Cr matches) 2)It helps to summarize all the main information needed for quicker reference. 3)It aid in final accounts.The purpose of the trial balance is (historically) to verify if any errors were made with posting the journal entries to the ledger. Every journal entry makes debits and credits to (at least) two.