ChatGPT Plus lists at $20 a month, but the final price can be higher depending...

https://www.bust-bookmark.win/chatgpt-plus-has-a-listed-price-of-20-per-month-but-the-actual-cost-you-pay

ChatGPT Plus lists at $20 a month, but the final price can be higher depending on where you live and how you subscribe. Taxes like VAT or GST vary by country and add to the cost. If you buy through an app store, expect extra fees from their markup