As Georgia stated, the 15%/10% is NOT a government tax. There is (or at least there used to be) a Turn Over Tax (TOT) of 5% but businesses are NOT supposed to add it as a separate line item. Somewhere I have a copy of the SXM TOT document but can't locate it right now but I will provide a link that addresses some of the taxes on SXM.

I have found it best NOT to ask as you open yourself up to being misled, confused and often duped into tipping more than you would otherwise. I have found in over 30+years of visiting, it is best NOT to ask. Honestly, I have only found ONE restaurant owner to be honest about this and he no longer owns the restaurant.

TAX LINK