I assume you mean rental income. Is that correct? If so, here's how to get there:
In TurboTax, search for rentals and then select the Jump to link in the search result.
Answer Yes to the question Did you have any rental or royalty income and expenses in 2018 for property you own?
Follow the on-screen instructions as you proceed through the rental and royalties section.
We'll ask you to enter general information about your rental (like description, address, and ownership percentage).
Eventually, you'll come to the Rental Summary screen, which is where you enter your rental income and expenses, assets and depreciation, and vehicle expenses. If you already entered, update it here to the correct amount.
Tip: Rent is considered income in the year you received it, not the year it applies to. This means that a rent payment for the month of January 2019 collected in December 2018 is reported on your 2018 return.