No, it's not taxable. But, you will need to enter the 1099-K information since it was issued to you and the IRS. After you enter the 1099-K, you can indicate the income shouldn't be taxable. See: 14 day rental rule.
To enter the 1099-K:
- Navigate to Federal > Wages & Income > Other Common Income > Form 1099-K
- Enter the information from the 1099-K
- Check the box that says This amount in box 1a is too high or includes some personal transactions
- Enter the amount that shouldn't be included, which is the entire amount
