Deductions & credits

1. TT is checking Line C box, 'Qualifies for Form 1116, line 18 Adjustment Exception', in the Adjustment Exception Worksheet. What is meant by 'Adjustment exception'? How does this impact line 18? Does it mean that Form 1040, line 15 should not be used for line 18? The program is populating line 18 with the amount from Form 1040, line 15. It should be calculating a lower amount. 

2. Do you know if TT supports within their calcs for line 18 the imbedded worksheet for line 18? 

3. What threshold are you referring to? I am aware of the $20,000 threshold for foreign source qualified dividends. I am reporting less than $20,000.