Show a link to delete account

Don't make this difficult.

This link should be visible in the profile or settings of a product. It should also be available in the support area.

Politely ask for feedback

It helps to know why somebody is choosing to leave. But, it should not be pressured or forcefully asked.

Convey the request feedback to improve other people's experience and to also consider their personal reasons.

Explain what it means to delete the account before confirming

Be clear with what happens to the account and the information in it should a user close.

Is all the data permanently deleted? Can they come back and restore their account? Is the deletion immediate, or can they use their account until a certain date?

Confirm account has been deleted

Now that their account is deleted and it's finally complete, embrace that! Be comfortable acknowledging they have left. Do not show any passive aggressiveness.