ChatGPT Plus is listed at $20 per month, but the actual price you pay can vary...

https://qqpipi.com//index.php/ChatGPT_Plus_Price_in_Hungary:_Why_Is_It_So_High%3F

ChatGPT Plus is listed at $20 per month, but the actual price you pay can vary from about $13 to $27. This difference happens because of extra costs like VAT or GST taxes, or the fees app stores charge on iOS and Android