Request to Extend Deadline (from your side)

Subject: Request: [Project Name] Deadline Extension

Dear [Client Name],

We need a small extension for the [Project Name] deadline.

Due to [brief, valid reason], we require [Number] extra business days. The new target is [New Proposed Date].

We apologize for any inconvenience. We’re working hard to minimize impact.

Thank you for your flexibility.

Sincerely,

[Your Name/Project Manager Name]

[Your Company Name]