ChatGPT Plus is listed at $20 a month, but the final price varies depending on...

https://bravo-wiki.win/index.php/How_Many_Files_Can_I_Keep_in_a_ChatGPT_Project%3F_Comparing_ChatGPT_Free_and_Plus_Limits

ChatGPT Plus is listed at $20 a month, but the final price varies depending on where you live and how you subscribe. That’s because of local taxes like VAT or GST and extra fees from app stores when you buy on mobile