Not sure whether to send a quote or an estimate? You're not alone. While these two documents look similar, they serve very different purposes — and using the wrong one can cost you money.
A quote is a fixed-price offer. Once a client accepts it, the price is locked. Quotes work best when the project scope is clearly defined and you want to give clients price certainty.
An estimate is an approximate cost projection. The final price may be higher or lower depending on how work unfolds. Estimates are ideal when scope is uncertain or the project involves variables you can't control.
When to use a quote: The project scope is well-defined and unlikely to change · Your client wants a guaranteed price · You're selling fixed-price services (design, development, consulting) · You need a document for procurement or finance approval
When to use an estimate: The scope is still uncertain or may evolve · You're working on a time-and-materials basis · There are genuine unknowns (material costs, third-party timelines) · You want to establish a budget expectation before committing to a fixed price
In Eonebill, both quotes and estimates are generated using the same AI engine. Simply describe your work in plain language, and Eonebill generates the appropriate document type. You can even convert quotes to invoices with a single click when the project is complete.
Fixed-price proposals tailored for service businesses.
Click any template to open the live editor, preview the design, and export as PDF.