A petty cash voucher is usually a small form that is used to document a disbursement (payment) from a petty cash fund. Petty cash vouchers are also referred to as petty cash receipts and can be purchased from office supply stores.

The petty cash voucher should provide space for the date, amount disbursed, name of person receiving the money, reason for the disbursement, general ledger account to be charged, and the initials of the person disbursing the money from the petty cash fund. Some petty cash vouchers are prenumbered and sometimes a number is assigned for reference and control. Receipts or other documentation justifying the disbursement should be attached to the petty cash voucher.

When the petty cash fund is replenished, the completed petty cash vouchers provide the documentation for the replenishment check.