As states take on more responsibility for health, education, and welfare programs, the interactions between state and federal policies become critical in informed decision making. The connection between state financial assistance and federal tax regulations has grown very complex. In 1997 alone, over 800 changes Were made to the federal tax code. This article presents two computer applications developed by the author that analyze the complicated relationships among tax credits. transfer payments, subsidies, and grants. The family resource wage progression (FRWP) model calculates federal tax liability, earned-income tax credits, food stamp benefits, and TANF (welfare) grants for low-income families. The higher education resource for modeling aid and need (HERMAN) displays the parent, student, and taxpayer contributions to the cost of higher education at various levels of income, Both applications offer an efficient means to investigate how tax credits and other benefits alter the financial circumstances of working families.