MINUS INVOICE

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Definitions

in invoicing income and in writing disbursement vouchers, all corrections are done on additional invoices or vouchers. This makes it unnecessary to search wildly for the machine copies to correct them. The original invoices or vouchers are often already distributed when a need of correction arises. Instead of correcting the original write a minus invoice giving what transaction was being corrected as fully as possible. In case of a refund from cash just received or a correction of amounts just received or in case of a bad check informed from the bank, write a minus invoice and clearly mark it so and for how much and to whom and why. In adding the week's income these show up easily. When separating out invoices into classes of income for an audit these minus invoices show up clearly and are subtracted from the type of income. Mark the invoice minus in big capital letters so nobody can miss it. (HCO PL 30 Jan 66 III)