ChatGPT Plus lists at $20 per month but the final price varies by country and...

https://lanesniceblog.scriblorax.com/posts/does-chatgpt-plus-have-an-annual-plan-or-yearly-discount

ChatGPT Plus lists at $20 per month but the final price varies by country and device. That’s because taxes like VAT or GST get added based on where you live. Plus, if you subscribe via an app store, they tack on a fee too