ChatGPT Plus has a list price of $20, but the actual amount you pay often...

https://suprmind.ai/hub/chatgpt/pricing/chatgpt-plus-price/

ChatGPT Plus has a list price of $20, but the actual amount you pay often ranges from about $13 to $27. This difference depends mostly on extra costs like VAT or GST taxes and additional fees from app stores like Apple or Google