20% cost of my home be financed thru personal installment loan. is the interest due deductible?

80% of the cost price was financed thru mortgage loan. So I have two resume, mortgage and installment loan. Can the interest on the installment loan tax deductible? If so can you please also provide reference to the source preferably IRS.
Answers:
By definition a personal loan is not secured by anything but your signature. If i.e. the case, the interest on it is NOT deductible. If the 20% loan is actually a mortgage loan, i.e. it is secured by the property, later it would be deductible. Source(s): IRS Pub 936 http://www.irs.gov/pub/irs-pdf/p936.pdf

Related Questions:
Paying interest on a home loan at closing?   Loan modifaction is 4.1/25 for 10 yrs transfer of funds at 2,280.40 a month on a 650,000 home loan?   What does it mingy when a home loan requests paperwork approval?   I hold appalling credit, can & where on earth I seize a home loan?   How much does buying a point usually lower your interest rate on a home loan by?  
  • On a home loan, can u borrow more than the purchase price?
  • Can I qualify for a home loan ?
  • What is the problems near a 1% home loan?