Stay up to date with all the latest promotions, entertainment, news and more – just subscribe now!Tortoise Rock Casino Prize ($) State Lottery - $5000+ (any prize) West Virginia Gross Income Tax (%) 24 Federal + 6.5 State.Never Miss the Latest or Greatest. For more on the federal tax, visit our homepage where we have a dedicated section on the taxation of gambling winnings. In this case, WV takes 6.5% as state tax in addition to the standard 24% federal income tax.