The Polk County Tax Office provides the following document for your reference and convenience. Documents are provided in Portable Document Format (.pdf). PDF versions can be viewed using Adobe Acrobat Reader. If you don't already have Acrobat installed on your system, you may download the Adobe Acrobat Reader, which acts as a "plug-in" for your web browser, for free. Publications in Portable Document Format may be viewed, searched and printed out to look exactly like the original.