Call AARP Member Services at 1-888-687-2277
Log in to your AARP online account
Go to your membership or account settings
Look for the option to cancel or not renew membership
Contact AARP by mail at AARP, P.O. Box 9316, Minneapolis, MN 55440-9316
Provide your full name, membership number, and contact information
Request written confirmation of the cancellation
Stop any automatic renewal payments if applicable