The validity clause on a quotation is one of those small details that almost no one reads—until it matters. When a client tries to accept a quote from three months ago at old prices, or when a dispute arises about whether an agreement was ever reached, this clause becomes the deciding factor. Here is how to write it, where to put it, and why the exact wording matters.
The core purpose of the validity clause
A validity clause serves three functions:
Price protection. It confirms that your quoted price is only guaranteed within the validity window. Costs rise, rates change, subcontractors revise their pricing. The validity clause means you cannot be held to a price you set under different circumstances.
Availability protection. Your capacity in June is not the same as your capacity in September. A quote accepted four months late, when you are fully booked, is a problem without a validity clause. With one, you can honestly say the quote has expired and offer a new start date.
Urgency without pressure. A deadline on your quote gives undecided clients a reason to make a decision, without you having to manually create pressure. It is a professional signal that your capacity is finite and your pricing reflects current conditions.
Exact wording to use
Standard 30-day clause:
This quotation is valid until [Date, 30 days after issue date]. Pricing and availability are subject to revision after this date.
With more explicit language:
This quotation is valid until [Date]. After this date, the quoted prices are no longer guaranteed and a revised quotation may be required before work can proceed.
For project-sensitive pricing:
This quotation is valid until [Date]. Pricing reflects current supplier costs and availability as of [Issue Date]. If work does not begin by [Date], costs may be revised to reflect any changes.
Choose the level of detail that matches your type of work. A simple freelance design project needs the first version. A project with significant third-party costs or material sourcing may warrant the third.
Where to place it in the document
Location 1: The quote header. Next to your issue date, add a “Valid until” field. Example:
Quote #: Q-2026-047
Date: May 27, 2026
Valid until: June 26, 2026This ensures the expiry is the first date-related information the client sees, before they even scroll to the body of the quote.
Location 2: The terms section. Repeat the full clause with more explanation in the terms section at the bottom of the quote.
Both placements are necessary. The header makes expiry immediately visible; the terms section makes it formally documented.
Why specific dates beat relative periods
“Valid for 30 days” and “valid until June 26, 2026” seem equivalent, but they create very different situations in practice.
A client receiving the quote via email on May 27th, opening it on June 3rd, and showing it to their manager on June 10th has three different “start dates” to calculate from. “Valid for 30 days” creates genuine ambiguity about whether the window closes June 26th (from send date) or July 10th (from when the manager reviewed it).
“Valid until June 26, 2026” has no ambiguity. Both you and the client know exactly when the clock runs out.
Specific dates eliminate the most common source of quote expiry disputes. When you write a validity period as a date rather than a duration, the calculation has already been done and there is nothing left to interpret.
How to handle a quote that is about to expire
Five to seven days before the expiry date, send a brief reminder. This serves as both a professional courtesy and a re-engagement opportunity.
Sample email:
Subject: Your quotation expires June 26
Hi [Name], a quick note that the quotation I sent on May 27th expires this Thursday. If you have any questions or need to adjust the scope before deciding, I’m happy to chat. If timing has changed on your end, I can also extend the quote or schedule work for a later start.
Notice the email offers flexibility—an extension or a future start date—rather than treating expiry as a hard cutoff. This posture closes more work than a rigid enforcement of the deadline.
Automating validity in a quoting tool
In a quoting tool, expiry dates are calculated and displayed automatically. You set your default validity window once (30 days, 14 days, whatever fits your practice), and every quote you issue has the correct expiry date without manual calculation. Waco3 also tracks whether a quote is approaching expiry and can trigger a reminder sequence, so the pre-expiry email goes out without you having to manage a calendar reminder for every open quote.
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