Thank you so much for your reply.
I copied and pasted both articles for your reference. I believe both of them are talking about IRA only (not 401k)
https://www08.wellsfargomedia.com/assets/pdf/personal/goals-retirement/taxes-and-retirement-planning...
Two sections talks about withdraw excess with double taxation
Page 2: 3. Removed excess after the tax filling deadline
Last page : Removal of excess after due date hypothetical
https://www.fool.com/retirement/plans/roth-ira/excess-contribution/
One section talks about withdraw excess with double taxation
Withdraw the excess the following year
Could you please take a look and help me understand which way is correct.
