The number can consist of a sequential number and clearly defined elements for the year, point of sale, or document type. The structure should remain simple enough to ensure that invoices can be reliably identified even as the volume of documents grows. Separate numbering sequences are possible for multiple locations, systems, or business areas, provided their identifiers are clearly distinguishable from one another. The invoicing system must prevent duplicate numbers and permanently store the last number used. Numbers that have already been issued should not be reused after a cancellation. Instead, the original document remains on record and is linked to the associated correction process. If the system in use supports it, drafts should receive a binding invoice number only when they are finally issued. When changing software, used numbers, open drafts, and the next starting value must be transferred and checked carefully. Special tax documents for which the Revenue Service of Georgia's system assigns a separate identifier should be distinguishable from internal invoice numbers and linked to them.
Planning the invoice numbering sequence before starting a business in Georgia
An invoice numbering sequence determines how a business identifies its invoices uniquely and consecutively. Before starting a business in Georgia, the numbering logic should be set up so that each invoice number is issued only once and the associated document can be easily found.
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