ChatGPT Plus lists for $20 a month, but the final cost varies by country and...

https://future-wiki.win/index.php/If_I_Never_See_the_Fallback_Message,_Is_ChatGPT_Pro_a_Waste_of_Money%3F

ChatGPT Plus lists for $20 a month, but the final cost varies by country and device. That’s because taxes like VAT and GST get added depending on your location. If you subscribe through an app store, expect a higher price due to their commission markup