Are you sure about that? This article says something different. although the rules might be different after the SECURE act or during the COVID pandemic.
https://www.hrblock.com/tax-center/income/retirement-income/excess-ira-contributions/
In particular, the excess must be withdrawn before the "extended deadline". The extended deadline is October 15, but only if an extension application was filed before July 15. Or is the extended deadline always October, even if the taxpayer filed in March and did the withdrawal in August? @dmertz can you help?
