California form 3840 Part III line 10 error checking

Forum|Forum|5 months ago
April 11, 2026
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For TurboTax Desktop tax year 2025, filling out California form 3840, for Part III line 10 there is error checking to ensure the sum of Part III line 10 is the same as Part I line 8. However, this is not necessarily the case if multiple properties are involved in the exchange and more than one copy of form 3840 is needed to list them all out.

If this is the case, it seems TurboTax is blocking from filing based on an error in the software.

user17759372932Author

Level 2

In fact TurboTax version of California form 3840 side 2 has many errors:

1) For part 1 it places the 'OR' between the property description and address instead of between the address and parcel number

2) For part 1 it requires check boxes for all A/B/C even though there may be less than 3 properties

3) For part 2 all the properties are labelled as 'B'

4) For part 2 it again requires checkboxes for all three properties even though there could be less than 3

5) And as mentioned before, there is error checking enforcing Part III line 10 matches Part II line 8 which isn't necessarily the case if there are multiple copies of the form.