I am working on a return in ProConnect and encountering a persistent $4 million Alternative Minimum Tax (AMT) liability that I cannot resolve. The taxpayer's regular taxable income is only $80,719, and there are no apparent entries or adjustments that explain this high AMT liability. Here’s what I’ve checked so far:
Form 6251 Input Screen:
I reviewed every line on the Form 6251 input screen, and all fields are empty. There are no manual entries contributing to the AMT calculation.
Stock Transactions (Schedule D):
The taxpayer participated in a Section 423(c) Employee Stock Purchase Plan (ESPP). However, I deleted all related stock sales from Schedule D, and the AMT liability still remains.
There were no incentive stock options (ISOs) involved, so AMT adjustments for ISOs should not apply.
Interest Income Screen:
The software directed me to the Interest screen, but there is no input for tax-exempt interest or private activity bonds that could explain the AMT adjustment.
Depreciation and Other Adjustments:
I checked the depreciation screens and found no differences between regular tax and AMT depreciation methods that could account for this liability.
Other miscellaneous income screens (e.g., carryovers, NOLs) also show no relevant entries.
Diagnostics and Hyperlinks:
I used ProConnect’s diagnostic tool and clicked through all blue-shaded hyperlinks on Form 6251 to trace back the source of the AMT calculation, but I haven’t been able to identify any data causing this issue.
Despite these checks, the $4 million AMT liability persists, and I cannot locate its source. Could this be a software glitch or an automatic adjustment that ProConnect is applying incorrectly?
Specific Questions:
I see on Form 6251 line 2g, there was a fictional $14,578,946 "Interest from specified private activity bonds exempt from the regular tax" showed up from nowhere. I checked the interest income input screen but not able to see anything. How do I remove this amount?
Any guidance on how to resolve this issue would be greatly appreciated!
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