I have always waited until I received the actual numbers before inputting into Turbo Tax (in Feb/Mar). I've noticed some folks in this forum are talking about putting numbers in now. For those of you who do input early:
1. are you only inputting numbers you know for sure?
2. If you are inputting estimates, isn't it hard to keep up with what numbers in TT are real and which are estimates?
3. I assume the benefit is getting an early estimate of your tax situation?
4. If you input numbers early, does it cause problems when you want to import actual numbers/forms later?
I just want to understand to see if I am missing out on something. thanks,
1. I do volunteer tax preparation, so there is a practice area where I can start a mock 2020 return now; I'll do my real return in the production area. I also have a spreadsheet where I have two columns: an estimated column and a final column. I estimate in the first column until the number becomes final, then I copy it to the final column.
2. A little bit. I really only focus on my return down through the AGI line, and that's only 10 numbers or so, and I usually can just remember which ones are real and which are estimates. The spreadsheet with the two columns method helps. I also have to try to remember which data I've transferred from the spreadsheet to the practice area.
3. The key benefit for me is doing tax planning. It's all well and good to put your taxes together in the spring, but it is even better to be able to realize LTCG and/or Roth convert, contribute to 529s, etc. in a thoughtful way rather than just live with however things happened to turn out. Besides IRA contributions and recharacterizations, most of the opportunity to affect one's tax return goes away 12/31.
The key thing I focus on is deciding how much income to realize, and of what nature. This year I decided to realize enough income to sop up all of my nonrefundable tax credits. I decided to realize LTCG to fund my living expenses for a while, and Roth convert the additional amount needed.
I also have a couple of tax moves that I do every year, and this is when I review my notes to make sure I've taken care of those items during the year sometime.
Finally, in my case I have fledgling adult offspring who may or may not be dependents on my return in any given year. Figuring that out now enables more tax planning related to them.
4. No, because as noted above, I do my real return in a completely different area of the software.