v3.26.1
Class A C F I I And Class I S [Member] N-1A Cover
Feb. 28, 2026
Prospectus [Line Items]  
Document Type 485BPOS
Amendment Flag false
Registrant Name Legg Mason Partners Income Trust
Entity Central Index Key 0000764624
Entity Investment Company Type N-1A
Document Period End Date Feb. 28, 2026
Prospectus Date Jul. 01, 2026