Certification Filed as Exhibit 12(b) to Form N-CSR

CERTIFICATION

I, Mark R. Fetting, chief executive officer of Legg Mason Income Trust, Inc., a Maryland corporation (the “Corporation”), certify that, to my knowledge:

1. The Corporation’s periodic report on Form N-CSR for the period-end December 31, 2006, fully complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in such Form N-CSR fairly presents, in all material aspects, the financial condition and results of operations of the Corporation.

/s/ Mark R. Fetting	February 27, 2007
Mark R. Fetting	Date
President

Certification Filed as Exhibit 12(b) to Form N-CSR

CERTIFICATION

I, Marie K. Karpinski, chief financial officer of Legg Mason Income Trust, Inc., a Maryland corporation (the “Corporation”), certify that, to my knowledge:

1. The Corporation’s periodic report on Form N-CSR for the period-end December 31, 2006, fully complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in such Form N-CSR fairly presents, in all material aspects, the financial condition and results of operations of the Corporation.

/s/ Marie K. Karpinski	February 26, 2007
Marie K. Karpinski	Date
Vice President and Chief Financial Officer