Hi @turkmen ,
From my understanding for wine products tax needs to be included in the display price and with your current settings having a default price of $50 will re-calculate tax at checkout. To solve for this the price in Admin should be $44.25 then you can use two different product page templates. One for wine that takes the before tax price and calculates the tax then displays it showing $50. The other template use it for everything else.
Just to recap: duplicate your product page template for tax-included. This would be a customization that changes the price on the front-end, not anything happening on checkout.