Deductions & credits

Thank you.

 

Does that mean I do not have to worry about amending past returns?  and just give the information as if it was this year?

 

I bought the house cash so no mortgage.  Does Turbo tax take that into account or do I just but in the cash amount paid when asked for mortgage amount?

 

Also will Turbo then, ask about the amount paid for renovation. mostly done DIY.