The listed price for ChatGPT Plus is $20 per month, but the actual cost can...

https://www.bestbookmarks.win/chatgpt-plus-lists-at-20-per-month-but-the-real-cost-often-ranges-from-13-to

The listed price for ChatGPT Plus is $20 per month, but the actual cost can range from about $13 to $27 depending on where you subscribe. This difference is mainly due to extra taxes like VAT or GST and app store fees that Apple and Google add on top