Lastly, I think the intention of that form is that you print it, fill in the date and your signature in ink, then either snail mail or scan to PDF and email it. I mention it here because it is a way you can get past not being able to add a field. Also, printing to PDF is called re-frying and is typically discouraged. One way you could edit the form is in Acrobat use Print to PDF- this will essentially wipe all the fields from the form so you would need to not only add the date field but add all the others too.

Open the necessary PDF form, choose Forms & Signatures > Prepare. Enter your official contact and identification details. The advanced tools of the editor will direct you through the editable PDF template. If it is a LiveCycle Designer PDF, then you can only edit (add a field) it in LiveCycle Designer, not Acrobat. See how to add a date field in a fillable PDF using different PDF editors. The way to complete the Online W 9 form 2022 form 2021 2018-2019 form on the internet: To get started on the form, utilize the Fill camp Sign Online button or tick the preview image of the document.

You can look under File->Document Properties to see if security (under the Security tab) has been added and to see if it is a LiveCycle PDF form (under the Description tab, PDF producer). Did you get the W9 from the IRS.gov web site? Many of their forms are LiveCycle Designer PDFs and many are secured to prevent changes too.

W9 pdf signable