Accounting support. The media accounts are the underlying documents to register the business operations of a company, which is why it must take special care at the time of preparing them. Where are prepared in original and a copy of the business needs require. Taking into account the legal requirements that are applicable to the type of act concerned, the economic facts must be documented through audio, internal or external source, be dated and authorized by those involved in them or elaborate. The media should adhere to the respective accounting vouchers and, by incorporating these in such a circumstance, kept on file in chronological order and so straight and possible verification.The media may be stored in the language in which it was granted, and be used to record transactions in books or detail. CASH RECEIPT OR PROOF OF INCOME. The receipt of cash accounting is a medium in which cash receipts consist collected by the company. The original delivery to the customer and one for archived copies the file to append a row and a daily accounting to the voucher. The cash receipt is posted with a debit to cash account and credit agreement with its contents or concept of payment received. Generally a fertilizer support some or all of the clients of a company by different concepts of cash sales because for them the support is the bill. BANK deposit slips. This is proof that banks develop and provide to their clients so that they fill the record.The original is in the bank and a copy with the seal of the clerk or the ringing of the cash register, is used for accounting of company slogan. There are two formats of appropriations, to appropriate one for cash and checks from local banks and another to record remittances and checks from other places. The media accounts are prepared in original and a copy of the business needs require. BILL OF SALE. The commercial invoice is an accounting support that also contains general data supports accounting, description of items purchased or sold, rates and taxes which are causes and conditions of payment. From the standpoint of the seller, is called a bill of sale and the buyer, purchase invoice. Generally, the original is delivered to the customer and produces two copies, one for the file to append a row and one day the proof of accounting. Invoice Requirements: A bill to be issued with the following requirements: 1.Be named explicitly as a bill of sale. (Pre printed). 2. Numbered in consecutive order. (Pre printed). 3. Surname, name or business name and NIT of the vendor or supplier of services. (Pre printed). 4. Surname, name and address of the person acquiring the goods or services. IDT Energy 5. Date of issue. 6. Specific or generic description of goods sold or services rendered. 7. Total value of the transaction 8. The name or business name and NIT of the printer of the bill. (pre print). Quality display retainer sales tax. Documents equivalent to the invoice documents are equivalent to the invoice: 1. The ticket machine registers 2. Entrance ballots public entertainment 3.