I have been trying and trying, over the last few weeks, to follow all the instructions and get my prior years of ProSeries Basic updated. I'm stuck.  I've updated 2020, 21, and 22. Cannot get 2016-2019 to work. Should I reinstall those years from scratch? Can I ignore them and work without them as long as I don't have to go back and amend anything? Thank you!  

No. Unfortunately, I was not able to figure this out, and I did not get any replies that helped with it. 😞   It's important, of course--so good luck!  And please share if you learn anything. Best, Heather

Thank you. Yes, since I am in California (as are most of my clients) I have never seen anyone who is NOT subject to SALT limits.  So I think you're saying that the client, who is itemizing on Sch. A, and has a home office for her Sch. C, may NOT be able to deduct a portion of real estate taxes on Sch. C. That seems logical, but ProSeries is calculating it as if she DOES get to take the extra deduction for part of her real estate taxes.  -- Heather    

BobKamman:  Thank you. Your response is very helpful.  But I still have a concern: The property taxes applied to the home office would not REALLY be deductible on Schedule A, because of the $10,000 limitation on deducting taxes paid. So if we take a deduction for part of the real estate taxes attributed to a home office, that will increase the client's overall deductions.   At least that's the way Intuit ProSeries is calculating it.  And it does not seem to be what the IRS Publication 587 says. Any thoughts on that? Is the IRS going to reject our home office deduction for part of the real estate taxes? Thank you!

IRS Publication 587, on Business Use of your Home, says this: "If you cannot deduct the business portion of your home mortgage interest in full this year, you will carry over the remaining home mortgage interest to a subsequent year in which you use actual expenses to figure your business of the home deduction."   and "If you cannot deduct the business portion of your real estate taxes in full this year, you will carry over those real estate taxes to a subsequent year in which you use actual expenses to figure your business of the home deduction." If you can, in fact, deduct these items even in a year with no business income, why would the IRS talk about carrying them forward? Thank you!

DKH, Thank you. I very much appreciate how quickly you responded. But I'm afraid I don't understand. Are you saying someone needs to produce an 1120S return separately? Or can I do that from within his individual return, within ProSeries Basic? Thank you, Heather   

Thank you for the info you've provided on ISOs. I just want to check another aspect of this. I'm working with a client who exercised some ISOs over several years, and in 2022 she finally sold it all. So we have some AMT tax credits to use. I use Intuit ProSeries Basic. I think I'm handling things right, but I want to be as sure as possible. So I would like to SEE exactly what the system is using for her ISO regular basis and especially her ISO AMT basis. Where can I see those and/or change those if necessary? Thank you!