Tax displays in some categories, but not others

I ended up with a very odd issue. I'm creating a site, and for some reason, when browsing through categories..some categories show the price of the items with tax and some show without. This could be a major issue, as the site owner only charges tax to customers within their state, so most worldwide buyers should not see the increased price. The tax zones and rates all seem to be set up properly, and if a user is signed in the tax rate price does not appear if the person is out of state, but ideally the category listing should never show tax. Tax should only be seen in the shopping cart, check out area. Any ideas what would cause some entire category listings to display tax prices but not others?

website is www.lovenicolestitchery.com

shop categories wristcuffs and privacy pouches show properly without tax