Yes, by all means retract your acceptance, and be honest about your reasons; they are valid and perfectly understandable. I would phone them so that they are aware ASAP that you are no longer available, and follow it up with a letter thanking them for their offer and that you regret not to be able to accept it.
We are writing to inform you that we are withdrawing the offer of employment made to you on job offer date for the position of job role at company name. We have carefully considered this and we do not take the decision lightly. Ultimately, we are rescinding the offer due to reason for offer withdrawal.
How to withdraw an application for a job in a professional manner Create a clear subject line. A polite introduction. Express that you're thankful. List your reasons for withdrawal. Confirm your gratitude. Close your message. Personal reasons. A better job offer.
Explain the reasons for the withdrawal, giving as much detail as possible and being honest as to what led to the decision. As per the terms of the agreement, I will fulfill all obligations until the date of withdrawal and will do everything in my power to ensure a smooth transition.
Send them an email explaining the situation. Tell them that you appreciate the consideration they've offered you so far, but have realized during the process that what they are apparently offering is not the kind of job you were wanting to do, and tell them that you will not be pursuing them any further.
Dear Contact Name, I want to thank you for your time and offer to join the Department Name team at Company Name. I regret to inform you that after further consideration, I will have to withdraw my acceptance for the role of Position Title with the company.
Unless you're signing a contract of employment or are being given some kind of sign on bonus that needs to be repaid, there is nothing to stop you from accepting a job offer and then backing out.
Be polite, vague but honest, say that you greatly appreciate the opportunity but unfortunately your circumstances have changed and you'll no longer be able to accept the role.
When you've realized that you need to write a letter of withdrawal, follow these steps to do so: Notify the employer right away. Be honest and clear. Thank the employer for their time. Provide your contact information. Keep your options open.