There is a workaround for this in QBO.

1) As mentioned previously, Turn off Service Date (Account & Settings / Sales / Sales form contents / Service date : OFF)

2) Create a new item with a Blank Space Character ( "⠀" - [pasted between the quotes there and also found at https://www.compart.com/en/unicode/U+2800)

3) In your estimate or invoice, add the item with the blank space character and delete the quantity, tax and cost entries

4) Boom.

You can also use the blank space character to create space after lines by inserting it after a couple of carriage returns in the item description field

NOTE: This will not work retroactively if you have previously had Service Date ON. Invoices/Estimates created with Service Date ON will retain that information.