You finally receive an offer after several weeks of job searching! While the hard part may seem over, there is one final thing you need to do before you can take the next step in your career: resigning from your job.

It’s normal to feel some nerves about giving your notice, but one simple misstep can undo years of hard work. If you want to leave a positive, lasting impact on your supervisor and colleagues, how you break the news of your resignation is key.

To ensure your exit is as graceful and professional as possible, here are five mistakes to avoid when resigning from your job:

Jumping the gun

You should never resign from your job unless you have an official offer letter from your new employer. If you tell your supervisor you are leaving without finalizing and confirming all the details (start date, salary, benefits, etc.) of your new position, you will find yourself in an awkward situation if the opportunity falls through. Not only will your current employer know you are looking to leave, but it can lead you to be first on the chopping block if the company needs to lay off any employees.

Not telling your supervisor first

When resigning from your job, it’s important to break the news to your supervisor first. And, when you do, this conversation should happen in person and behind closed doors. Office chatter can move quickly throughout a company, and you certainly don’t want your director to find out that you are leaving from anyone other than you.

Giving limited notice

Giving your employer at least two weeks’ notice is one of the most professional and considerate things you can do when resigning from your job. While it may not be required, you want to ensure you have enough time to tie up any loose ends and help your team with a transition plan.

Checking out

You should be just as committed to the company in your final days as you were when you were a new hire. To leave at the top of your game, ensure all your files are in order and you are still producing quality work. The goal is to ensure you are making things as easy for your team and your successor as possible.

Not being appreciative

Show your appreciation for your experience at the company by thanking your colleagues. This act of gratitude will leave your former supervisor, employees, and coworkers feeling good about their interactions with you—making it easier to tap into this network for future job and networking opportunities.