[20040113]94-28_社会保障和医疗保险税和保费：情况说明书.pdf

http:/wikileaks.org/wiki/CRS-94-281This report was written by former CRS analyst Geoffrey Kollmann.Congressional Research Service The Library of CongressCRS Report for CongressReceived through the CRS WebOrder Code 94-28 EPWUpdated January 13, 2004Social Security and Medicare Taxes andPremiums: Fact SheetDawn NuschlerDomestic Social Policy DivisionTaxes: FinancingforSocialSecurityOldAge,Survivors,andDisabilityInsurance(OASDI)and the Hospital Insurance (HI) part of Medicare is provided primarily bytaxes levied on wages and net self-employment income. They are referred to as FICAtaxes (for Federal Insurance Contributions Act) and SECA taxes (for Self-EmploymentContributions Act). TheFICAtax is paid byemployees and employers; the SECA tax ispaid by the self-employed (about 96% of the work force is required to pay them). Bothhave three components: OASI, DI, and HI. The FICA tax was first levied in 1937 at arate of 1% (for both employee and employer) on earnings up to $3,000. The current rateis 7.65% 6.2% for OASDI, 1.45% for HI. The SECA rate for the self-employed is12.4% for OASDI, 2.9% for HI. The OASDI tax is levied on earnings up to $87,900 in2004 (earnings subject to theOASDItax a