When you take the decision to resign and move on to another job, you might really want to dance your way out of the door, or get your own back by criticising your boss to the whole office. But you need to resist these temptations because in future you might find you're working with your ex-line manager or other colleagues in a different company.

Letting your manager know
Show courtesy by telling your boss first. Request a meeting to say that you're leaving, following up soon after with an official letter. Before the meeting with your boss, write a list of ongoing tasks along with status updates and suggestions concerning completion.
Use the meeting to clarify any other points, such as your notice period and leaving date, and how you will inform others (colleagues or external clients, contacts and suppliers). Ask about a reference too; your employer may only supply the most basic type but your line manager might also give you a more personal one. Making sure you get a good one can make subsequent job hunting less stressful.

Preparation
Work out how you can ensure a smooth transition and minimise disruption to your employer. There may be a range of things you can do to hand over professionally, such as completing projects, working out the priorities with your line manager, and leaving clear documentation for the successor in your post concerning processes or software.

Your letter of resignation
Keep your letter short. You don't need to give lots of explanations or justification for why you're leaving. Don't be tempted to address the failings of the company or your boss, either. Instead, thanking your employer for the job and mentioning what you appreciated about it is a graceful touch. Here's an idea of what to include:
• First paragraph – the basics
Inform the employer that you wish to resign and confirm the agreed final date at work.
• Second paragraph – thank your employer
Mention any particular career-building projects you worked on or opportunities to develop skills and contribute to the employer's goals and successes. You can also mention your appreciation at being able to work in a great team.
• Third paragraph – handover
State your willingness to finish existing projects and hand over your work smoothly.