Real Estate Tax Bills will go in the mail mid week December 12th. These will be mailed out as they are processed by the mailing service. If you would like to obtain a copy of your tax bill immediately you can print out a copy from the web at: http://online.co.marathon.wi.us/. Select "Public Access". Read and complete the "Agreement of Use" provision. Select option 8 "Recent Taxes." The screen will provide a summary of your tax bill including payments made. On the screen directly below the tax year is a box "View Tax Bill PDF". Left click your mouse ove rht eword "view and a PDF of your tax bill will generate.