Ohio, my location, has a website called Ohio Business Gateway where much business can be transacted including filing and paying withholding for the state and many municipalities as well as filing the quarterly reports for same. As with EFTPS and efiling 941's, I 'print' pdf's for my files and clients and attach to emails. Workers' Comp can also be managed through this means as well as through their own website. It works for me and my clients and has done so for a few years now.