As for any point of entry in Russia, you need valid visa to arrive to Moscow (Sheremetyevo airport). In order to get this visa (tourism visa or business visa), you must order an OFFICIAL INVITATION FOR RUSSIA.
Upon arrival at one of the airport of Moscow, you must complete a short entry form into the country where you must specify information such as passport number, visa type and number, number of entries. If you have something to declare when you arrive in Moscow, you will need a special form and take the "green" row (in Russian: "Зеленый" канал) and if not (nothing to declare), you will reach the « red » row (in Russian: "Красный" канал). It is important to declare the anything that could cause problems when leaving the Russian territory. It is also very important to report goods that customs might believe that you export out of Russia. On this aspect, the arrival in Moscow is no different from any other entry point in Russia. After verifying your passport, your visa validity and the form filled in before, your travel can continue. But don’t forget to register your visa in the following days after your arrival in Moscow.
If you are American, Australian, Canadian, English, Irish, a New Zealander, Swiss or from any other European country and you are organising travel to Moscow, the capital of Russia, you must obtain a tourist visa from the Embassy of the Russian Federation located in your country. Since Krasnoyarsk is located on the Russian territory, the conditions of entry for Europeans and North Americans (Australians and New Zealander) are the same. The Russian consulate may also issue this document for your travel to Moscow.
Even if you plan to spend only a few days in the Russian capital, a tourist visa is required to enter the Russian territory. Regardless of whether you arrive directly at of the airport of Moscow (Sheremetyevo - SVO, Domodedovo - DME) a valid visa will be required at any point of entry in Russia.
To apply for your Russian visa (and thus access to the city of Moscow), you will need a "voucher" or an "official invitation" that you will join with your visa application.
Upon arrival in Moscow, Russian customs officials will ask to see your Russian visa and will check its validity. It's very important to note that it is not possible to get your Russian visa at one of the Moscow airport (Sheremetyevo, Domodedovo).
If you plan to leave Russia and come back a second time to Moscow or in any other part of Russia, it is essential to apply for a double or multiple entry visa.
If you hold a passport:
IMPORTANT NOTICEBOUT THE INVITATION: Many Russian tour operator like us are not allowed to provide invitation for Russia to citizens of Morocco, Algeria, Tunisia and most the African countries.