ChatGPT Plus is listed at $20 per month, but the actual price you pay can vary...

https://bravo-wiki.win/index.php/What_Do_You_Get_with_ChatGPT_Plus_in_2026%3F

ChatGPT Plus is listed at $20 per month, but the actual price you pay can vary between $13 and $27. This difference comes from extra fees like VAT or GST, and additional charges on app stores for iOS or Android