Form 8829 Line 8

[cliftonan]

I'm working on my 2024 return.  The Form 8829 Line 8 is picking up Schedule C Line 28 instead of Line 29.  Form 8829 Line 8 is actually showing a negative number, presumably because it's a sum total of all the expenses instead of being the income number.  Line 29 on Schedule C is a positive number around $30k and the home office is used 100% for the business.  Because of this it's showing that we have to carryover the operating expenses and depreciation to 2025, which is incorrect.  

This appears to be a software glitch.  Can someone help?

[rjs]

Form 8829 line 8 does not come directly from Schedule C line 29. Certain amounts have to be added or subtracted. See the instructions for line 8 on page 2 of the IRS Instructions for Form 8829.

[NoLegoTax]

I think there is a problem here with 8829/Line 8 calculation.  I didn't have any office expenses (Schedule C/Part II);   I did enter all home office expenses (did not enter home office depreciation yet) and it populated 8829/line 8 correctly with Schedule C line 29 value, BUT when I added a depreciation home office expense, it added a 0 to Schedule C/Line13&28.  Once it did that, 8829/line 8 went down to 0 (now matching Schedule C/Line 28 instead of Schedule C/Line 29), and all the expenses that were originally in 8829/line 8 appear to be deferred to next year.    If I delete the depreciation entry, then 8829/line 8 goes back to the value I expected.   Note: business income is 20x more than the total of all these writeoff expenses and depreciation.  So, it can't be a too little income issue.  Also, note that I verified that I didn't have any additions/subtractions needed for 8829/line 8 based on the IRS link provided.  Am I missing something?

[NoLegoTax]

Think I found the reason.  If you have no business expenses, but you do have home office expenses.  Turbotax doesn't enter a value on Schedule C line 28.  Once you put in depreciation for the home office, it puts a 0 in line 13 and then line 28 on Schedule C.   Now it thinks you have general business expenses, but it doesn't know the % of the home office expenses.  Turbotax never prompts the user to enter that percentage that populates the entry "Percent of gross income from business use of home reported on Schedule C" on the Form 8829 Worksheet "Part II - Calculation for Business Income Limit for Form 8829, Line 8 or Simple Method, Line A".  I put in 100% and my expenses magically reappeared.