If the mobile home is your primary residence you are entitled to certain tax advantages if the home qualifies.
Since your mobile home is a home, you may be eligible to deduct the interest that you pay on it if you itemize your deductions. You can only write off the interest on two homes, so if your mobile home is your third home, you'll be out of luck. Finally, your mobile home loan has to be secured by the mobile home. If you used a credit card to buy it, the interest won't be deductible.
While you're itemizing your deductions, you can also write off any property tax you pay on your mobile home. If it's fixed to the ground, you'll claim the expense as a real estate tax on line 6 of Schedule A. For movable homes that require vehicle or trailer registration, you can deduct the portion of the tax.