Assistance with purchasing a home won't be taxable income to the parent or to you.
If it was a gift over the exclusion amount, it should be reported on Form 709, but still won't generate any taxable income at this time.
Depending on the size of the parent's estate, it may never result in any additional tax.
Turbo Tax does not support the gift tax form 709, but here is a link:
https://www.irs.gov/pub/irs-pdf/f709.pdf
