Form 8962 requires the household income.  In this case the three children receive SS and small retirement due to death of father.  Their SS and 1099-R are below the filing amount and not taxable.  on 8962 you only include household income if "required to file".  I believe somewhere I saw dependents with only SS and other income still under taxable level did need to file.  Can someone please advise?  This means the difference between a large PTC and none.