W. Va. Code § 11-23-14 – Requirements concerning returns, notices, records and statements.

(a) General. -- The Tax Commissioner may prescribe regulations as to the keeping of records, the content and form of returns and statements, and the filing of copies of federal income tax returns and determinations. The Tax Commissioner may require any person, by regulation or notice served upon such person, to make such returns, render such statements, or keep such records, as the Tax Commissioner may deem sufficient to show whether or not such person is liable for tax under this article.
(b) As a part of a full and complete tax return, the taxpayer shall provide:
1. (1) A copy of pages one through four of its signed, federal corporation income tax return or its signed federal partnership income tax return, as filed with the Internal Revenue Service for the taxable year; and
2. (2) If a consolidated federal income tax return was filed for the taxable year:
  1. (A) Supporting schedules showing the consolidation of its income statement and balance sheets, including schedules supporting any eliminations and adjustments made to the income statement and balance sheets;
  2. (B) A copy of Federal Form 851 as filed with the Internal Revenue Service and supporting schedules displaying any subsidiary corporations in which the taxpayer has stock ownership; and
  3. (C) A signed statement explaining the relationship and differences, if any, between the income statement and the balance sheet reported for federal consolidated filing purposes and the income statement and the balance sheet reported to this state under the tax imposed by this article.
(c) Notice of qualifications as receiver, etc.
Every receiver, trustee in bankruptcy, assignee for benefit of creditors, or other like fiduciary shall give notice of his qualification as such to the Tax Commissioner, as may be required by regulation.