Business & farm

Yes, you should file a “final” Schedule C in the year you ceased operations (2025). This will permit you to “dispose” of any business assets you have been depreciating so TurboTax can calculate any gain or loss on the sale.  Supplies, such as paper, inventory and raw materials, do not have to be accounted for unless you deducted the costs before and sell them. 

There is no place to mark the Schedule C as final; however, you will indicate it closed  in the business info section of the Schedule C interview  in TurboTax and dispose of all assets.  See example image below (of course it will say "Did you stop... in 2025?").

For more information, see this helpful TurboTax article Closing a Business