Excess 401K Contributions & Home Office Deductions

Hi there I have a couple of questions,

 

Question 1:

In 2022 I had an excess 401K contribution. I received the excess prior to April 15th of 2023.  While doing my 2022 taxes in 2023 , I added a "Other income not already reported on a From W-2 or Form 1099" per the suggestion of a Turbo Tax employee Tax expert in the community. (https://ttlc.intuit.com/community/retirement/discussion/re-excess-401k-and-ira-contributions/01/2935...)

 

My problem is that I think I added the excess contribution last year but I want to confirm just to make sure so then I can ignore the 1099-R form with Code P since I reported it on my 2022 tax filings. I can't seem to find that specific line item in my  tax transcript that I downloaded. How can I confirm that I did this in 2023? is it bundled with income line item?

 

Question 2:

 

I have an e-commerce Amazon FBA business and I am also a W-2 employee working hybrid 2-3 days in office and 2-3 days at home. My business accountant gave me my K-1 which I added to my 2023 filings that I am doing this year. My question is, is there some sort of a standard office/supplies/internet/phone deduction that I can claim given that I use my office partially for my e-commerce work?

 

 

Thank you,