[Your Full Name]
[Your Address]
[City, State ZIP Code]
[Your Email Address]
[Your Phone Number]

[Date]

[Manager's Name]
[Manager's Title]
[Company Name]
[Company Address]
[City, State ZIP Code]

Dear [Manager's Name],

I am writing to formally resign from my position as [Job Title] at [Company Name], effective [Last Working Day Date].

I understand this notice is shorter than the standard policy requires, and I sincerely apologize for any inconvenience this may cause. Due to [brief reason such as "unforeseen circumstances" or "an unexpected opportunity"], I must make this difficult decision on an accelerated timeline.

I have truly valued my time at [Company Name] and appreciate the opportunities for professional growth you provided. Working with this team has been a positive experience that I will carry forward in my career.

To minimize disruption and ensure the smoothest possible transition, I am committed to:
- Completing all critical and time-sensitive tasks
- Creating detailed documentation for my current projects and responsibilities
- Training team members on any processes or systems I manage
- Being available for questions via email or phone after my departure date if needed

I recognize the challenges this timing creates and will do everything possible during my remaining time to support the team and make this transition as seamless as possible.

Thank you for your understanding. I wish you and [Company Name] continued success.

Sincerely,

[Your Signature]
[Your Typed Name]