No taxes are added to your personal salary and you may keep the entire income for yourself other than paying your bills on time.
Your monthly Dubai Electricity and Water Association will have added tax service fee and is one of the ways the local municipality collects income from residents for providing city services. The added service charges are approximately 400 AED which is included in your monthly bill and must be paid on a monthly basis. Remember, do not to let your balance go unpaid for longer than its due date otherwise you will face penalties, and possibly lose your services and have to place a bigger deposit next time around to prevent repeated late payments.
All liquor stores have service charges of 15% on most of the alcoholic products. The Ministry of Interior uses this as another form of municipal taxing at the city level to cover the services which the city supplies to its residents.
A local service charge is added to many restaurants; it is automatically added onto your bill. This is yet another way the city taxes residents for providing food establishments and services. Even then, not all restaurants face the service charges; higher end and popular restaurants have to include the charge on their bills. However, the customary is if you go to one of the restaurants with the added service charges for dining, then you do not have to leave behind a tip.
Enjoy Dubai as much as you can, it is a great city with very low tax and full of every luxury, entertainment, and attraction. Dubai caters to millions of tourists from all over the world. Shopping is fun in the duty free shops without paying any added tax. In the souks and markets you can negotiate a price you feel is fair and pay that amount only.