Source Document - Payment Vouchers

A payment voucher is a document prepared by a cashier (or accountant) to pay a named person or entity, a certain amount of money as approved. This means that before payment can be made in an organization, a payment voucher will have to be raised by a responsible officer and approved by the authorizing officer before such fund can be disbursed to the beneficiary.
In some cases, the payment voucher, after being raised, will have to be checked by the internal auditor or audit department to ensure the payment is genuine before the final approval can be given to make payment. 
There are two forms of payment vouchers. These are the payment voucher and the petty cash voucher. The major difference between the two forms of vouchers lies in the fact that petty cash vouchers are used for payment of petty cash by the cashier (or petty cashier). This takes care of little cash expenses that are incurred often in the running of the business.
The following format of payment vouchers are in use.

From the above sample of payment voucher, we can deduce that

Content of Payment Voucher

1. Name of the paying enterprise (buyer)

2. Name and signature of the payee 

3. Address of the payee

4. Payment voucher number

5. Cheque number (for cheque payment vouchers only)

6. Date of payment

7. Description or particulars of payment

8. Total amount (in figures) paid

9. Total amount (in words) paid

10. Name and signature of officer raising / preparing the voucher

11. Name and signature of officer certifying correctness of payment (in this case, the internal audit officer)

12. Name and signature of officer authorizing payment

13. Ledger account names and codes where posting go to