Invoicing glossary
Invoice number
An invoice number is a unique identifier assigned to each invoice so it can be tracked, referenced, and reconciled.
Invoice number: a clear definition
Invoice numbers should be unique and sequential (e.g. INV-0001, INV-0002) so you and your clients can reference a specific invoice and so your records have no gaps. Most invoicing tools suggest the next number for you automatically.
Invoice number in Invco
Each company in Invco has its own sequential numbering with a prefix you choose, such as INV-. Invco suggests the next number when you create an invoice, and numbers are unique within each company.
Invco is invoicing software for people who run more than one company. Design your own invoice template or upload your existing invoice PDF, and Invco calculates subtotals, tax and totals, numbers each invoice sequentially and emails it as a branded PDF from your own address. Plans from $10/month.
Frequently asked questions
What is invoice number?
An invoice number is a unique identifier assigned to each invoice so it can be tracked, referenced, and reconciled.
How does Invco number invoices?
Each company in Invco has its own sequential numbering with a prefix you choose, such as INV-. Invco suggests the next number when you create an invoice, and numbers are unique within each company.
What is purchase order?
A purchase order (PO) is a document a buyer sends to a seller to authorize a purchase, listing the items, quantities, and agreed prices.
Invoice the easy way with Invco
Design your invoice template, send branded PDFs from your own email address, and see what's paid and overdue for every company. Plans from $10/month, with a full refund within 7 days.
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