The Turkish Interior Ministry published the decree on 28 May after bilateral talks concluded in Ankara. Brazilian travellers previously required an e-visa costing $60.
Pre-registration via the official Turkish immigration portal generates a QR code valid for one entry. The form asks for basic travel details and proof of onward travel or sufficient funds.
Turkish Airlines immediately added capacity on São Paulo-Istanbul flights, increasing weekly departures from seven to ten through September. Average fares dropped 22 percent compared with last summer.
Hotel bookings from Brazil to Istanbul and Antalya rose 31 percent in the first 24 hours after the announcement, according to major booking platforms.
Border police will conduct random interviews to confirm trip purpose. Overstays trigger a five-year entry ban and fines equivalent to $250.
Officials in both countries view the move as a step toward eventual visa-free travel for all Mercosur nationals within five years.