Whilst operating an offshore bank account in a tax haven doesn't attract the most common taxes associated with doing business, for example by having no personal or corporate income tax, no capital gains tax, no foreign investment tax, no withholding tax, no estate tax, no sales tax or no value added tax, the government of the tax haven will still levy a fee for the incorporation of the IBC or Shelf Company.
If you purchase a shelf company, often these fees will be incorporated in the cost of purchasing the company, however when setting up a new IBC you will need to take these fees into consideration.