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axes. Before January 1, 2009 the single member owner could file using either the name and EIN assigned to the SMLLC, or the name and EIN of the single member owner. Even if the pre-January 1, 2009 employment tax obligations were reported using the disregarded SMLLC's name and employer identification number, the single member owner retains ultimate responsibility for collecting, reporting and paying over employment taxes for those periods.
As of January 1, 2009, Notice 99-6 is obsolete and the SMLLC
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