Nothing to do with the business??? Are you guys serious??? How can tacking a 30% (not a 23%) tax on a service not effect the business? Besides it is the business who must charge the tax as part of thier bill, and collect the tax, and remit the tax. That 30% tax has a huge bearing on whether I am going to pay someone for that service.
When a person leaves the shop and stops at the store to buy a loaf of bread on the way home, that loaf of bread has nothing to do with his business.