When you used 2022 for test returns did you use the What-If worksheet? There is a button to use 2023 tax rates. I use it to figure my estimates. I think it works good. Even used it to figure my 2024 tax since my husband died in 2023 and I will be filing Single for 2024 (that we file in 2025).
To find What-If worksheet. Go to Forms Mode, click Forms in the upper right or on the left for Mac. Then click Open Forms box in the top of the column on the left. Open the US listing of forms and towards the bottom find the What-if worksheet. It's right under Estimated Taxes.
Or try…Go into Forms View. Once there, at the top of the left column, click on the icon for "Open Form". A popup window will appear. In the text line, type the word "what" without quotes. You should see "what-if worksheet" appear as a selection choice. Double-click it to launch the form.
