W. Va. Code § 17A-10-7

The registration fees herein prescribed shall be for the entire fiscal year: Provided, That where application for such registration is made between October 1, and December 31, inclusive, in any fiscal year, the charge therefor shall be three quarters of such yearly fee, and when application for such registration is made between January 1, and the thirty-first day of March, inclusive, in any fiscal year, the charges shall be one half of such yearly fee, and where application for such registration is made between April 1 and June 30, inclusive, in any fiscal year, the charges shall be one quarter of such yearly fee.