Business & farm

Yes, you do not have to file a Schedule C if you had no income.  However, you may want to file as a final Schedule C if you do not plan on continuing your business.  The only entry you would make would be to indicate that you ended the business in 2021 by checking the box on the line I stopped -your business name-  in 2021 on the page Tell us about how long you've worked in (your business name).