Depends on what type of flat-rate invoice, and the invoice above the seal of the type of business

1. If it is a catering class can be considered to be included in the "hospitality"

2. If it is the purchase of goods received by the flat-rate invoice can be considered to be included in the "office expenses"

2.

3. If it is the parking lot and other invoices can be considered into the "vehicle costs" specific subjects depending on how your company set up.

4. The entries are similar, borrowing expenses, credit cash (or bank deposits)