Can I file a trial run to see what my return in 2026 is?

[xmasbaby0]

The current software is for 2024 and has been written for 2024 tax laws.  The newly passed tax laws have not been included in the current software.   You can use the current software for an "estimate" but be aware that it is merely an estimate.  The software for 2025 returns will become available in mid to late November, and will require many updates.

[xmasbaby0]

Caution-----do NOT mess around with your 2024 return in order to create that "dummy" return or you will destroy the 2024 return.   If you want to "play" around with the software to create an estimate, start a "dummy" account to use for that.

[xmasbaby0]

There has been an interesting development that might help you if you are using the desktop download.   A very recent update for desktop software now includes some of the most recent new tax law changes in the "What If" feature of desktop software   If you use what if---make sure to click that you want results for 2025.

"What if" if only a feature of desktop software; online does not have that feature.