The purchase of property, plant, or equipment results in a debit to the asset section of the balance sheet. A purchase credit journal entry is recorded in the company's purchase journal when buying goods or services on credit from a third party.When you first purchase new equipment, you need to debit the specific equipment (ie, asset) account. And, credit the account you pay for the asset from. I'm going to explain about the general entry for credit purchase and cash purchase of goods so I will be covering some topics. This job aid explains the process of how to register, issue, transfer, identify purchase information and dispose an asset. The tradein value will not be part of the final journal entry but needs to be entered as a credit to balance the entry based on the limited info you provided.