Background: I am trying to amend my 2023 individual tax return (form 1040 with a VA state return) because I forgot to include a Schedule C company (SMLLC) in my original filed 2023 return. The issue is that this company is located in Florida, but I live and work in Virginia. I am planning to just add this Schedule C business to my 2023 individual return and that's all I am planning to do for the amended return. 

My question is if there is any special form/treatment needs to be done about this situation except for adding a Schedule C to my Form 1040. Not sure how the location issue will affect my state returns such as VA and FL.

Any advice would be appreciated!

Thank you!