ChatGPT Plus has a $20 list price, but the actual cost you pay can range from...

https://wiki-tonic.win/index.php/ChatGPT_Plus_vs_Business:_Which_One_Is_Better_for_Invoicing%3F

ChatGPT Plus has a $20 list price, but the actual cost you pay can range from about $13 to $27. This difference happens because of local taxes like VAT or GST and fees added by app stores like Apple or Google