Hi there, i bought a house in my home country. i don't have mortgage documents in US/IRS format. How can i claim deductions for my new house abroad?Thanks.

Yes, you are able to claim foreign mortgage interest. The mortgage needs to be a secured debt on a qualified home in which you have an ownership interest. 

Begin by entering the information as though you received Form 1098:

1. Choose Deductions & Credits on the left tab (under Federal)
2. Select "Show more" for "Your Home"
3. Click "Start/Revisit" next to "Mortgage Interest and Refinancing (Form 1098)"
4. Enter the lender information
5. On the following screen, choose "The seller is financing this loan and we didn't receive a 1098"
6. Complete the information on the screens that follow

You don't have to enter the house if you don't want to.