Purchase Invoice is the exact opposite of your Sales Invoice. It is the bill that your Supplier sends you for products or services delivered. Here you accrue expenses to your Supplier. Making a Purchase Invoice is very similar to making a Purchase Order.
The concept of “Posting Date” is again same as Sales Invoice. “Bill No” and “Bill Date” helps to track the bill number as set by your Supplier for reference.
Like in Sales Invoice, you have to enter an Expense or an Asset account for each row in your Items table. This helps to indicate if the Item is an Asset or an Expense. You must also enter a Cost Center. These can also be set in the Item master.
If the Item is consumed immediately on purchase, or if it is a service, then the purchase becomes an “Expense”. For example, a telephone bill or travel bill is an “Expense” - it is already consumed.
For inventory Items, that have a value, these purchases are not yet “Expense”, because they still have a value while they remain in your stock. They are “Assets”. If they are raw-materials (used in a process), they will become “Expense” the moment they are consumed in the process. If they are to be sold to a Customer, they become “Expense” when you ship them to the Customer.
In many countries, the law may require you to deduct taxes, while paying your suppliers. These taxes could be based on a standard rate. Under these type of schemes, typically if a Supplier crosses a certain threshold of payment, and if the type of product is taxable, you may have to deduct some tax (which you pay back to your government, on your Supplier’s behalf).
To do this, you will have to make a new Tax Account under “Tax Liabilities” or similar and credit this Account by the percent you are bound to deduct for every transaction.