Investors & landlords

In my case the business income isn't on a rental property it's on a small community well that I own and operate.  In 2019 I had the pump fail and the replacement cost was nearly triple the annual income the well brings in so my 2019 return showed the significant loss with approx two-thirds remaining which I assumed would be carried over to my 2020 return?

When doing my 2020 taxes in Turbo Tax it pulled the loss from 2019 and when "adding" that loss to the meager income for 2020 I still have about one-third of the original "loss" remaining which I'd assumed would be carried over to my 2021 return?  I don't recall seeing QBI mentioned in my 2019 return so I'm uncertain what value to manually enter to clear the error in my 2020 return?