Where do I list my time share rentals as a business on my return? I have expenses associated with the rental(s) that should be deductible against the income. Thanks.

Most timeshare properties are rented for less than 15 days per year. If that applies to your situation, then see:

IRS Publication 527 Residential Rental Property (Including Rental of Vacation Homes) starting on page 19:

     Used as a home but rented less than 15 days. If you use a dwelling unit as a home and you rent it less than 15 days during the year, its primary function is not considered to be rental and it should not be reported on Schedule E (Form 1040). You are not required to report the rental income and rental expenses from this activity. The expenses, including qualified mortgage interest, property taxes, and any qualified casualty loss will be reported as normally allowed on Schedule A (Form 1040). See the Instructions for Schedule A (Form 1040) for more information on deducting these expenses.

     See also: IRS Topic 415- Renting Residential and Vacation Property

However, if you rented the timeshare for more than 15 days in the year, you may report this as a Rental Property with personal use days (if any). You would also report all income and allocate allowable expenses (including Operating Fees) to the rental on Schedule E.

If this applies to your situation, see:

• Where do I enter income and expenses from a rental property?
• How do I handle capital improvements and depreciation for my rental?