Quotation vs estimate confusion costs freelancers thousands every year. Many use these terms interchangeably when they shouldn’t. A quotation is a fixed-price commitment. An estimate is an educated guess. Understanding the difference protects your income and relationships.
What Is a Quotation?
A quotation is a firm price offer for specific work. When a client accepts it, you’re legally bound to deliver the work at that price. The price is set. If you quote $2,000 for website redesign, that’s the price. You can’t invoice for $3,000 later unless the scope changed and you documented it before starting work.
Quotations work when you know exactly what needs to happen. Logo design with two rounds of revisions. A blog post on a specific topic. Social media copy for six posts. These are quotation scenarios. You define deliverables, set the price, and you’re protected because the client knows exactly what they’re paying.
What Is an Estimate?
An estimate is an approximate cost for work where scope or timeline isn’t fully clear. It’s a professional prediction. When you send an estimate, you’re saying “based on what I know now, this will likely cost around $X.” The word “likely” gives you room to adjust if discovery reveals complications. An estimate isn’t binding. It’s a ballpark figure.
Use estimates for complex projects with unknowns. Website development with unclear backend complexity. Copywriting when revision needs are unknown. Marketing strategy when the competitive landscape isn’t fully mapped. These projects deserve estimates because the actual work emerges as you dig deeper.
The Legal and Financial Implications
In contract law, a quotation is an offer. When a client accepts it, you have a binding agreement at that price. If you later invoice for more, the client can refuse to pay and potentially sue. An estimate, properly labeled, is just information. You can adjust it based on actual discoveries.
Wording matters. Never send a quotation if you mean an estimate. Label your document clearly. For quotations: “This quotation is valid for 30 days and reflects the deliverables described above. Any scope changes will be documented in writing before work begins.” For estimates: “This is an estimate based on current information. Final costs may vary depending on discoveries made during the project.”
When to Use Each One
Use a quotation for fixed-scope work with clear deliverables: design with defined revisions, writing with clear briefs, video editing when footage is provided, service packages with set components. These have visible boundaries. A quotation protects both sides.
Use an estimate when scope is uncertain: software development with unknown architecture, consulting on unfamiliar situations, renovation work you can’t fully assess upfront, social media strategy when competition and audience are unmapped. Any project where work will reveal new information that could change cost.
Send a quotation when the scope is locked. Send an estimate when the scope will evolve as you learn more.
Protecting Yourself in Writing
The document itself is your protection.
For quotations: list exact deliverables, revision limits, timeline, valid-for date, payment terms, and what changes require a new quotation. Make misunderstanding impossible.
For estimates: explain this is an approximation, list cost-changing factors, note when you’ll provide an updated estimate or quotation, and say when you’ll have clarity. This sets expectations.
Tools like Waco3 store quotations and estimates in client records, so you know what you sent and when. Clear history protects you if disputes arise.
Final Thoughts
This distinction matters more than many realize. One is binding. The other is a projection. Use quotations when you’re confident. Use estimates when you’re still learning. Clarity prevents disputes and protects your rate.
Related: How Long Is a Quote Valid — Can a Contractor Charge More Than the Estimate
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