Scope is the whole game: tie the quote to an SOW
In consulting, the quote and the statement of work are two halves of the same conversation. The SOW says what you will deliver — objectives, deliverables, milestones, assumptions, what is explicitly out of scope. The quote attaches a price to it.
List the deliverables as line items, not a paragraph. "Current-state assessment (report, ~20 pages)", "Two half-day stakeholder workshops", "Roadmap and 90-day plan". A client approving a numbered list knows exactly what they are buying.
Day rate, project fee, or retainer — price the model
Three pricing models, three different quotes:
- Day rate — best when scope is genuinely open. Quote the rate and an estimated number of days, and flag clearly that days beyond the estimate are billed at the same rate. This is really an estimate, so label it as one.
- Fixed project fee — best when deliverables are defined and the SOW is tight.
- Retainer — a recurring fee for ongoing access or a set amount of work per month. State the period, what is included, and what happens to unused or over-used time.
Validity, deposits, and protecting your time
Give the quote an expiry — 14 to 30 days is usual. Your availability is the product, and a quote a client sits on for two months no longer reflects your calendar or your rates.
Deposits are common for project-based consulting. For consumer or regulated engagements, deposit caps and refund rules may apply; keep any cancellation fee tied to work done or direct loss and state the refund rule clearly. Note your invoicing rhythm on the quote too — monthly in arrears for a retainer, or at named milestones for a project.
Acceptance and signatures
A quote usually works as a commercial offer; if the client accepts it and the essential terms are clear, it will usually form the agreed price and scope, subject to local contract and consumer-law rules. Until acceptance, either side can walk away.
An e-signature or typed approval is usually enough for ordinary commercial jobs, provided local law and the contract do not require a specific form, witness, or wet-ink signature. Keep a dated record of the acceptance. For consulting engagements, acceptance is often tied to the matching statement of work (SOW), and the deposit and invoicing rhythm should appear on the same document the client signs off on.
From accepted quote to invoice
Once the work is done, use the accepted quote as the basis for a separate invoice or tax invoice. For deposits, progress payments, or retainers, issue the required invoice and account for VAT/GST/HST/sales tax under local timing rules. Reference the original quote number on the invoice — it helps the client's accounts team match the bill to what they approved.
The practical switch is small: change the heading from "Quote" to "Invoice", swap "Valid Until" for a payment due date, add a fresh invoice number, and apply your tax treatment. Our free invoice generator produces the matching invoice.
Tax on a quote
A quote can show estimated tax (VAT, GST, HST, or sales tax) so the client sees the likely total, but it is a commercial offer, not a tax invoice or sales-tax document — it does not by itself create a reporting point. If you display tax, mark it as estimated or indicative so it is not mistaken for a tax invoice.
Rates and thresholds differ by country and can change, and deposits or advance payments can affect when tax is due — confirm the treatment that applies to your work with your tax authority or an accountant.