Exhibit 99.1

Annual Servicer’s Certificate

Standard & Poor’s Ratings Services

55 Water Street

New York, New York 10041

Attention: Asset-Backed Surveillance Group

Fitch Ratings

One State Street Plaza

New York, New York 10004

Attention: Structured Finance

Moody’s Investors Service Inc.

99 Church Street

New York, New York 10007

Attention: Structured Finance

Wachovia Bank, National Association

401 South Tryon Street

Charlotte, North Carolina 28288

Attention: Structured Finance Trust Services

SLC Student Loan Trust 2005-1

c/o Wilmington Trust Company

Rodney Square North, 1100 North Market Street

Wilmington, Delaware 19890-0001

Attention: Corporate Trust Administration

As an officer of The Student Loan Corporation, the Master Servicer of SLC Student Loan

Trust 2005-1, I hereby certify that:

(a)   a review of the activities of the Servicer during the preceding calendar year and of its performance under the Servicing Agreement has been made under my supervision, and

(b)   to the best of my knowledge, based on such a review, the Servicer has fulfilled all of its obligations under the Servicing Agreement for the period June 15, 2005 through December 31, 2005, and there have been no known defaults in the fulfillment of such obligations.

/s/ Daniel P. McHugh March 31, 2006

Daniel P. McHugh                 Date

Chief Financial Officer

The Student Loan Corporation, as Servicer