Are you certain that letter is about your 2024 return? Or is it for a previous year? Read it carefully. It would be very odd to receive that letter in July 2025 for a 2024 return even if you had not requested an extension.
https://www.irs.gov/individuals/understanding-your-cp59sn-notice
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
