Do I need to include information from a closed business that has already been filed with the IRS on EOY personal tax filing?

It depends on the type of business, whether it had any income and your level of involvement with it.

If the business was a passthrough entity and you were a partner or shareholder, you can expect to get a Schedule K-1 which will show your share of income and expenses for 2023. If you get a K-1, you need to file it with your tax return. 

If the business was a C-Corporation, there may not be anything to report on your personal tax return, but if you received cash, or property as a liquidation of the business that needs to be reported. 

If the business was just a sole proprietorship, you can report your income and expenses directly in your tax return in the self-employment income section. 

If you still have questions, respond back with more details, including the type of business and whether you received income, property or distributions when it closed.