ChatGPT Plus lists at $20 per month, but the actual price can range from about...

https://zulu-wiki.win/index.php/How_Early_Should_I_Cancel_ChatGPT_Plus_to_Avoid_Being_Charged%3F

ChatGPT Plus lists at $20 per month, but the actual price can range from about $13 to $27 depending on where you subscribe. This difference mostly comes from taxes like VAT or GST and app store fees on iOS or Android