Typically anywhere between $5-$10, but if you get in before 9:30-10 it's free, unless there's an event (drag or otherwise) happening, then you can expect to pay $10-$15.
Always the earlier you can be there the better. If there is an event it is usually $10-$15. VIP meet and greet for some of the performer nights is generally $25-$30 which includes admission. Try for before 10p for lower cover or before 9p for lowest or even zero cover!
Thanks! Your answer is awaiting moderation.