If you're visiting Paris for more than a few days, you will most likely have an occasion to use a taxi. Maybe you'll be using a taxi for your Paris Airport transfer - travelling from Charles de Gaulle or Orly airport to the Paris city center. Or maybe you'll want to splurge for a Woking taxi night when you visit the Paris Opera. The Parisian taxi system is heavily regulated, so these tips will help to ensure that you're Paris taxi experiences don't turn into Paris taxi adventures!
Know how to find an unoccupied taxi - Spotted from down the street, it's not always easy to tell if a taxi is occupied or not. Luckily, the "Taxi" light on top of the car tells you everything you need to know. The old system (which will be phased out by July 2012) uses a white plastic sign that is either lit or unlit. IF the light is lit (yellowish light), the taxi is unoccupied and you may stop it. If the light is off, the car is occupied, the driver is on a call, or the driver's shift has ended. The new system, beginning in 2011 uses a white plastic sign with a green light (unoccupied) or a red light (occupied).
Taxi Stands - In Paris, certain locations throughout the cities are set up as taxi stands. Whenever you're ready to get a taxi, simply go to a main thoroughfare and look for a sign next to the street that says "Taxis". On busy streets during busy hours, you may find a few people already waiting. The rule is first come, first served, so locals will not treat you kindly if you try to jump the queue. Taxis are prohibited from taking on passengers within 50m of a Taxi Stand. So if you are having problems getting a free taxi to stop for you, but they all stop at the end of the street. Take a look and see if there is a Taxi Stand close by.
Extra Fees - Taxis are allowed to charge you an extra fee for certain services. Pickups at train stations, airports allow a supplement of up to 1. Each suitcase put in the trunk (over more than 5kg) maybe be charged 1. Animals and a fourth passenger may be charged a supplement.
Busy Nights and Rainy Days - Be aware that the number of taxis available is regulated and is not necessarily the number that would be available in a free market. On rainy days during tourist season (April - October) in touristy areas and on weekends on the Champs-Elysees after 2AM, it may be very difficult to find an unoccupied taxi.
Use a radio taxi - If you are in an out-of-the way location, consider calling a taxi. You'll pay a little bit more, but you'll also avoid very long waits in the case of a busy night or a rainy day during tourist season. If you're in a hotel the reception can call the taxi for you. If not, you can use a service like Taxi G7 or Taxis Bleues.
Pay in Cash - Most taxis don't accept credit cards, so be prepared to pay in cash (Euros). A tip of approximately 10% is standard.
Avoid unlicensed taxis - Legal taxis in Paris have a TAXI sign on the roof. From time to time in touristy locations and at the airport you will be approached by people asking if you need a taxi. These offers should be declined. Legitimate taxis stay in their cars and wait for passengers at the taxi stand (including at the airport). The unlicensed taxis could charge you much more than the normal fare.
Write your destination address on a piece of paper - Many taxi drivers in Paris only speak French. So unless your French language skills are very good, in order to avoid Woking taxi misunderstandings, it's best to write your destination address on a piece of paper and hand it to the driver
Know the fare system. Parisian taxis charge three different fares: A,B, and C. The A fare is the cheapest, it is valid during the daytime, inside the city limits. The 'B' fare is more expensive, it is valid during evening hours and on weekends inside the city limits, and at night outside the city. The 'C' fare is the most expensive, it is valid outside the city limits and inside the city limits at night on weekends
Take a ride along the river Seine late at night. Driving along the Seine while Paris sleeps is a good way to experience the City of Light. Late one night, between 3am and 5am, take advantage of the opportunity to see Paris in a new way. Ask the taxi driver to drive you along the Seine between Bastille and Place de la Concorde. You'll be glad you did!