Can you clarify?
Are you referring to Rent Received or Rent you Paid?
If you have a rental property for which you received rental income, choose Income & Expenses from the menu at the top.
Scroll down to Rentals, Royalties, and Farm and then choose the appropriate category for your rental and proceed through the online prompts.
If you are referring to Rent you paid for your personal residence, that won't be a deduction on your federal return, unless it is partially or wholly deductible because you have a Home Office or for a business enterprise. If there is a credit available from your particular state , TurboTax will ask that as you work through your State return.