Sign in to the Amazon account with the Prime membership you want to cancel. In the upper right-hand corner, go to Sign in. A drop-down menu will open. Click the yellow box that says Sign in.
Once you've logged in to your Amazon account, open the Account & Lists drop-down menu in the upper right-hand corner. Choose Prime Membership.
In the top right, click Manage Membership.
Then, click the End Membership button under the Manage Membership menu. Clicking this will not immediately terminate your membership, but it will take you to a new screen where you can begin the process.
Amazon will guide you through a series of confirmations before you can cancel your membership. In a last-ditch attempt to stop you from leaving, Amazon will ask you again if you're sure you want to cancel. Ignore these attempts and continue through the process.
You may be eligible for a partial refund depending on when your membership was canceled in relation to the membership contract. If you don't see any information about a refund during the cancellation process, contact Amazon support directly.
Do you have a bunch of Apple subscriptions you're being charged for that you forgot about? Learn how to cancel your subscriptions on an iPhone.
Amazon Prime Day 2021 runs from October 13-14 this year.