How to Cancel an Audible Membership

Cancel on the Audible website (desktop or mobile browser)

Go to audible.com and sign in to your account.
Hover over (or tap) your name / Account Details.
Find Membership and select Cancel Membership (sometimes under "View Membership Details" or "Manage Membership").
You'll be asked why you're leaving and may be offered a pause, a discount, or to bank your credits — choose to continue canceling if you still want to cancel.
Confirm the cancellation. You should get a confirmation on screen and by email.

If you subscribed through Apple (iТunes): Cancel on your iPhone via Settings → [your name] → Subscriptions → Audible → Cancel Subscription.

If through Amazon/Google Play: Manage it in that account's subscriptions section.

You keep the audiobooks you've already purchased — titles bought with credits or money are yours to keep even after canceling.
Unused credits usually expire when the membership ends, so use them before you cancel.
Cancel before your next billing date to avoid being charged for another month; access typically continues until the end of the paid period.

See the Accounts & Subscriptions topic for other answers in this topic, or start from ask a follow-up.