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E-filing preparers requirement
Form W-2, 1099-R, 1099-MISC and W-2G
Homestead credit claims
How to become an ERO
Approved tax preparation software
Letter to tax preparers
Credit card payments
Electronic funds transfer:
Instructions for financial institutions
Estimated tax verification
Real Estate Transfer and Merger/Conversion
Income and Franchise Taxes
2015 income tax forms
Prior year income tax forms
Filing amended returns
Substitute forms specifications
Tips for filing your return
Wisconsin Income and Franchise Tax Statutes
Estate tax forms
Fiduciary, estate and trust tax forms
Common questions for estates and fiduciaries
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)