The information about reporting the timeshare is shown here. A rental of less than 14 days does not require income to be included on your return.
To eliminate the IRS from looking for it on the return, you can choose to enter the income and then a miscellaneous expense for the same amount. No gain or loss. To allow TurboTax to let you do it, say it was rented for 15 days.
You can go directly to the area to enter your information.
- Sign into your account and select your current return.
- Select My Account on the top right and then select Tools
- Select Topic Search (see attached image)
- Search for rental and select Go (rental screen images are attached)
Follow the interview to enter or review your information.