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Form W-2, 1099-R, 1099-MISC and W-2G
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Letter to tax preparers
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Wisconsin Income and Franchise Tax Statutes
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Manufacturing and Telco Forms
Sales and Use Taxes
Forms and instructions
Sales and use tax reports
Use Tax Calculator
Am I required to file my clients' income tax returns electronically?
Do I have to apply with DOR to transmit electronic returns?
How do I access my client's business tax accounts?
How do I sign up to receive notices of law changes, etc.?
Does DOR offer training?
Form 1 - Income Tax Return
Form ST-12 - Sales and Use Tax Return
Federal/State Electronic Filing of Individual Income Tax Returns (Publication 115)