ChatGPT Plus is listed at $20 monthly, but the actual price you pay can range...

https://charlie-wiki.win/index.php/ChatGPT_Plus_File_Upload_Limit:_How_Many_Files_Can_I_Send%3F

ChatGPT Plus is listed at $20 monthly, but the actual price you pay can range from about $13 to $27 depending on your location. This difference happens because of added taxes like VAT or GST and extra fees charged by app stores like Apple or Google