Please stick to one post.
https://ttlc.intuit.com/community/business-taxes/discussion/where-on-the-turbo-tax-form-do-i-enter-a...
Any business losses on Schedule C would have been reported many years ago, with no carryover.
Your comment about a $3000 loss implies a capital loss, but that is NOT a loss from a business.
As I said in your other post, you need to provide details about EXACTLY what this loss was from, as your questions don't make sense.
