Swedish inkomsdeklaration -- declare schablonintäkter on your US taxes?

I'm American, husband is Swedish and US Greencard holder (permanent resident). His Swedish inkomsdeklaration includes schablonintäkter, which I understand to be based on a small percentage of the value of funds/shares (in his Swedish bank). It's my understanding that Sweden treats this as "income" (imputed/ascribed) and it is taxed at 32%.

QUESTION: do I need to declare this "income" and the tax paid on our US taxes? Where/how? On a substitute 1099-DIV so I can also declare the taxes paid? 

The amounts are significant -- $2000 schablon and $650 tax