ChatGPT Plus has a listed price of $20 per month, but the actual amount you pay...

https://wiki-spirit.win/index.php/What_Happened_to_the_ChatGPT_Plus_Student_Deal_from_March_31,_2025%3F

ChatGPT Plus has a listed price of $20 per month, but the actual amount you pay can range from about $13 to $27. This variation happens because of things like taxes (VAT or GST) and extra fees added by app stores such as Apple’s or Google’s