You can definitely deduct the sales tax:
-
Federal Taxes (Personal
Self Employed version)
- Deductions and Credits
- Scroll
down to Estimates and Other Taxes Paid, select sales tax
As to the interest, you can deduct the interest as mortgage interest (data entry below) if the trailer meets a definition of a 2nd home: it must have sleeping, cooking and toilet facilities. Otherwise, the interest is personal and not tax deductible.
- Federal Taxes
- Deductions and Credits
- Your Home
- Mortgage Interest, Refinancing, Insurance
