Use our self-service options on this website to pay your taxes or make a phone or video appointment at your convenience. When you file Form VA-6, you must submit each federal Form W-2, W-2G, 1099, or 1099-R that shows Virginia income tax withheld.Beginning July 2013, withholding tax returns and withholding tax payments must be filed and paid electronically using one of our three online systems. 2) Free File Fillable Forms are electronic federal tax forms you can fill out and file online for free. Use this tool to estimate the federal income tax you want your employer to withhold from your paycheck. This is tax withholding.