Leaving to start a business or join a startup as a founder is a clear, respectable reason. Share it in a line, keep business plans out of the letter, and confirm your notice and handover. If your venture is in a related field, read your appointment letter for non-compete, confidentiality or IP clauses and be transparent where needed.
Open them in Word or Google Docs, keep the one that fits and fill in your details.
Replace the text in square brackets with your details, and match the notice period in your appointment letter.
Subject: Resignation to start my own business Dear [Manager's name], I am writing to formally resign from my position as [Designation] at [Company name]. I have decided to start my own business, and I need to give it my full time and attention. As per my appointment letter, my last working day will be [Last working day]. Until then, I will remain fully committed to my current responsibilities. I will complete pending work, prepare detailed handover notes and make sure my successor has access to all the files, tools and contacts required. My time at [Company name] has taught me a great deal about customers, teamwork and running things well, and much of what I have learnt here will shape how I build my own venture. I am grateful to you for your guidance. Please let me know the next steps for my exit, full and final settlement and relieving and experience letters. With sincere thanks, [Your name] [Designation]
Subject: Resignation – [Your name], [Designation] Dear [Manager's name], I am resigning from my role as [Designation] to start a business of my own. My last working day will be [Last working day], in line with my notice period. I will make sure all my responsibilities are handed over smoothly and that nothing is left pending before I go. If there is anything you would like me to focus on first, please let me know. Thank you for your support and for the experience I gained while working with you. It gave me the confidence to take this step, and I would be happy to stay in touch as the venture takes shape. I have copied HR to begin the exit formalities. Best regards, [Your name] [Designation]
Subject: Resignation and confirmation on confidentiality Dear [Manager's name], Please accept this letter as my resignation from the post of [Designation] at [Company name]. I am leaving to start my own venture, and my last working day as per my notice period will be [Last working day]. I want to be transparent that my business will operate in [Business area]. I have reviewed the confidentiality and other applicable clauses in my appointment letter and will honour them. I will not use any company information, client data or materials in my new work, and I will return all company assets and documents on or before my last working day. If HR would like to discuss any specific obligations, I am happy to do so before I leave. I will also complete a full handover so that my current projects continue without interruption. Thank you for the opportunities and support I have received here. Regards, [Your name] [Designation]
That depends on your appointment letter and company policy, which may restrict outside work while you are employed. Even when allowed, keep it outside working hours and away from company resources. If in doubt, check with HR before you start any client work.
The effect of such clauses depends on their wording and the circumstances, so we cannot give a general answer. Read your appointment letter carefully, and if your venture is in a related field, consider getting advice from a legal professional before you resign.
Share only as much as you are comfortable with. A brief mention is fine and some managers become early supporters or advisers. Avoid discussing anything that overlaps with the company’s clients or products, and never use internal information to build your venture.