ChatGPT Plus lists at $20 a month, but the final price varies by your country...

https://wiki-room.win/index.php/Which_Students_Still_Get_a_1-Month_ChatGPT_Plus_Offer%3F_(Australia_and_Universidad_Nacional_de_Colombia)

ChatGPT Plus lists at $20 a month, but the final price varies by your country and device. That’s because of local taxes like VAT or GST, plus extra fees from app stores if you subscribe on mobile