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Business Tax Due Date Changes

West Virginia has changed some of the due dates for the filing of returns by corporations, partnerships and composite returns to reflect some of the due date changes made on the federal level.

These changes are effective for returns filed for tax years beginning after December 31, 2015.

Highlights of the changes include:

  • The due date for corporations with a calendar year end will now be April 15, and the extended due date is October 15.
  • There is a special federal rule for corporations with a June 30 year end date. West Virginia did not adopt the special rule. The filing due date for corporations with a June 30 year end date will be October 15 with an extended due date of April 15.
  • Corporations with a fiscal year end other than June 30 will have a due date of 3 ½ months after their year-end, and an extension due date period of six months.
  • S Corporations filing due dates did not change. The due date remains March 15 with a six month extension period.
  • Calendar year partnerships will now have a due date of March 15 and an extended due date of September 15.
  • Fiscal year partnerships will now have a filing due date of 2 ½ months after their year-end and an extension period of six months.
  • Composite returns will be due April 15 with an extended due date of October 15.
  • The due date for filing fiduciary returns will remain April 15 with a new extended due date of September 30.

New Due Dates for Tax Years Beginning After December 31, 2015

C Corporations - Calendar Year

Previous Due Date: March 15
New Due Date: April 15

Previous Extension Period: Sept 15 (Six Months)
Extended Due Date: October 15 (Six Months)

C Corporations - June 30 Year-End (No Special Rules)

Previous Due Date: September 15
New Due Date: October 15

Previous Extension Period: March 15 (Six Months)
Extended Due Date: April 15 (Six Months)

C Corporations - Fiscal Year Other Than June 30

Previous Due Date: 2 1/2 Months After Year-End
New Due Date: 3 1/2 Months After Year-End

Previous Extension Period: Six Months
Extended Due Date: Six Months

S Corporations

Previous Due Date: March 15
New Due Date: March 15

Previous Extension Period: Six Months
Extended Due Date: Six Months

Partnerships

Previous Due Date: April 15 (Annual Filers)
New Due Date: March 15 (Annual Filers)

Previous Extension Period: Five Months
Extended Due Date: Six Months

Composite Returns

Previous Due Date: April 15
New Due Date: April 15

Previous Extension Period: Five Months
Extended Due Date: Six Months

Fiduciary Returns

Previous Due Date: April 15
New Due Date: April 15

Previous Extension Period: September 15
Extended Due Date: September 30

Tax Information and Assistance: (304) 558-3333 or (800) 982-8297