You made purchases on the total amount of at least 10 000 rubles per one day in one store
You are not an EEU citizen (EEU countries include Armenia, Belarus, Kazakhstan, Kyrgyzstan, Russia)
You take your goods outside the customs territory of the EEU (except for the export of goods through the territory of the States-members of the EEU) through checkpoints across the State border of the Russian Federation, a list of which is approved by the Government of the Russian Federation More
From January 2018, Russia introduced the Tax Free system - nowadays, foreign citizens who have made purchases in Russia can get VAT refund and save up to 11% of the purchase price. You can use Tax Free service in a number of shopping centers and shops.