Operations guide · 28 July 2026

Invoice or quote? A quick decision guide for service businesses

Quotes and invoices look similar but do very different jobs. Here is how to tell which one your next document should be.

By Biashara OS Team

A quote is a proposal: it commits your client to nothing until they accept it. An invoice is a demand for payment on work already agreed or delivered.

Biashara OS lets you draft a proposal, track its status through send and acceptance, then convert it into an invoice with one click, carrying every line item across.