Enter your prior year assets in the Asset topic of your Schedule C. TurboTax will ask for the Asset information, be sure to enter the information for your prior year asset the same as it was originally enter. This info should be on your prior year depreciation schedule. Once you enter a date of service before 2018, you will see screens asking if you took any Sec 179 or special depreciation (enter those if you did) and then you will be asked which asset method you used and then ask for the prior depreciation...that's it.
hope this helped!
