As of right now (June 10, 2024), Kentucky still has a 6% sales tax on precious metals..
However, there are upcoming changes:
August 1, 2024: A new law goes into effect that exempts gold bullion from the 6% sales and use tax. There is some confusion about this law, so it's best to check with the Kentucky Department of Revenue for updates closer to the date.
Later in 2024: Another piece of legislation is in the works that would exempt all precious metals (not just gold bullion) from sales tax. This is expected to be passed sometime later in the year..