Forms
Guide to using the 2020 IRS Form W-4
Software Support
QuickBooks Support — Visit the corporate support website for QuickBooks.
Government Sites
Internal Revenue Service — An online resource to the latest tax law.
Illinois Department of Revenue — An online resource to Illinois state tax law.
Wisconsin Department of Revenue — An online resource to Wisconsin state tax law.
Online Tax Payments
Pay Federal Taxes — PAY1040.com allows you to pay your Federal income taxes electronically.
Pay Illinois Taxes — ePay allows you to pay your Illinois individual and business taxes electronically.
Pay Wisconsin Taxes — ePay allows you to pay your Wisconsin individual and business taxes electronically.