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

https://dibz.me/blog/is-there-a-chatgpt-plus-free-trial-i-can-click-to-start-1223

ChatGPT Plus is listed at $20 a month, but the actual price you pay can vary between $13 and $27 depending on where you sign up. Differences in taxes like VAT or GST and app store fees can change the final cost