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Electronic filing information

Electronic filing mandate

You'll need to file all corporate returns electronically unless you file waiver Form EFT-102.

Returns supported for electronic filing

You can electronically file the following returns:
  • C Corporation
  • S Corporation
  • Consolidated / combined
  • Amended
  • Short year
  • Estimates (filed with return)
  • Composite (1CNS)
  • Withholding (PW-1)
  • Declaration of Inactivity (4H)

Returns not supported for electronic filing

You can't file the following returns electronically:
  • Extension
  • Form C-EPV voucher
  • Power of attorney (A-222)
  • E-file waiver (EFT-102)
  • Form W-RA
  • Form PW-2

Signature requirements for electronic filing

Wisconsin doesn't have a specific signature form for electronic filing. However, they still require a signature. You'll need to complete and sign the WI Electronic Filing Authorization for Corporations worksheet before you file the return electronically. Enter the signature date on the WIELF screen, or leave blank if it matches the federal date you enter on the federal ELF screen. Don't mail the worksheet. The preparer keeps the original for 3 years. It needs to be available if the State of Wisconsin asks for it.

Resubmitting returns

To make a change to an e-filed return already accepted by the State of Wisconsin, you'll need to amend the return.
If Wisconsin rejects the return, you can make the changes, correct the rejection, and resubmit. If you can retransmit the return electronically, you need to file and have Wisconsin accept it by the return due date or 10 calendar days after you initially received the rejected acknowledgement, whichever is later.
If you can't retransmit the return electronically, you'll need to file on paper by the return due date or 10 calendar days after you initially received the rejected acknowledgment, whichever is later. Include an explanation of why you're filing the return late and a copy of the rejection.

Attachments

If the IRS doesn't support e-filing of the federal return, you can still file the Wisconsin return electronically. UltraTax CS will attach the federal return as a PDF.
Wisconsin lets you attach PDFs to the electronic file. It doesn't have specific naming conventions for the files you attach. UltraTax CS will generate and attach some forms and worksheets as PDFs to the electronic file.
  • Form 4562
  • Form 4684
  • Form 4797
  • Form 4835
  • Form 6198
  • Form 6252
  • Form 8810
  • Form 8824
  • Form 8825
  • Form 8949
  • Form PW-U Worksheet
  • Form U Worksheet
  • Schedule D
  • Schedule F
  • Schedule MT
  • Form PW-2
  • Schedule RT-1
  • K-1 Pass Through Report
  • Federal Form 7004
  • Foreign Transactions Worksheet
  • Shareholder Foreign Transactions Worksheet
  • Carryover Worksheet
  • Rent and Royalty Worksheet
  • Combined Form 8949
  • Combined Capital Loss Worksheet
  • Combined Charitable Contribution Worksheet
  • Combined Recomputed Schedule D
  • Composite Income Worksheet
  • Composite Tax Computation Worksheet
  • Disposal Worksheet
  • Shareholder Disposal Worksheet
  • Pre-2009 NOL Worksheet
  • Sales Tax Credit Carryover Worksheet
  • Section 179 Like-Kind Exchange Worksheet
  • Shareholder Section 179 Like-Kind Exchange Worksheet
  • Withholding Net Income Tax Worksheet
  • Elections
  • General Footnote

Payment methods

You can make payments by electronic funds withdrawal (direct debit), electronic funds transfer (EFT), check, or credit card. You can make partial payments. If the prior year tax was greater than $1,000, you need to pay electronically.
You need to include bank information and a requested payment date when you request electronic funds withdrawal. Wisconsin will use the bank information you enter on the federal Bank screen. If you have different bank information for Wisconsin, use the WIBank screen in the General folder.
You need to make credit card payments online. To instruct the client to pay by credit card, mark the
Credit card
 checkbox on the WIELF screen.
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