You only need Windows 11 to install 2025 program next year. 2024 and prior programs will still work on Windows 10 going forward. So you can still use Windows 10 to amend or file or open any 2024 or prior returns until April 2028 and beyond.
Now that that’s cleared up what other tax software for 2025 returns (next year) will let you install on Windows 10?
