Obtain the NH's E/R and compare the amount of alleged contributions with the posted earnings for the prelag portion of the support period.

Obtain evidence of the NH's lag earnings if the support period includes the lag period and it is alleged that the NH's earnings increased during the lag period.

If the NH's total contributions to the household during the support period exceed four-fifths of the posted and lag earnings, obtain a full explanation of the circumstance from the claimant including the sources and amounts of the NH's other income.

Obtain an explanation (similar to that required in RS 01301.175A.2.) if the alleged contributions were more than one-third of the NH's posted and lag earnings during the support period.