ChatGPT Plus is listed at $20 per month but the actual price varies from about...

https://www.normalbookmarks.win/the-chatgpt-plus-subscription-lists-at-20-but-your-actual-cost-can-range-from

ChatGPT Plus is listed at $20 per month but the actual price varies from about $13 to $27 depending on where you subscribe. This difference comes from extra fees like VAT or GST in some regions and app store charges on iOS and Android