How Long Is an Estimate Valid? Validity Periods and Re-issuing Estimates

Every estimate has an expiry date, whether you print one or not. If you price a job today but the client approves it in six weeks, your material, labor, and currency costs may have moved. A written validity period protects you.

1. Why Set a Validity Period

A validity date turns your estimate into a live offer instead of an open-ended promise. It also creates a gentle deadline that nudges clients to decide, which speeds up your sales cycle.

2. Choosing the Right Length

• 7–15 days: volatile materials, promotions, or rapid-turnaround services.
• 30 days: the standard for most B2B services.
• 60–90 days: large projects where clients need board or budget approvals.

3. Re-issuing an Expired Estimate

When an estimate lapses, re-issue with fresh pricing and clearly state what changed (for example material cost increases). Reference the original estimate number so the client can compare easily.

4. Communicate, Don’t Assume

Before honoring a stale price, send a short note: “This estimate expired on X; here is the updated figure for your approval.” Most clients expect it.

Add a professional validity clause to your next estimate with the free Estimate Generator, and combine it with the pricing confidence from our cost estimating guide.