The majority of the MBTA budget is paid for by sales taxes.<p>It has $1,037M for operating expenses.<p>Revenue Sources:
State Sales Tax	$756M
Fares	$430M
Municipal Assessments	$143M
Parking, Real Estate Tenants, etc.	$37.4M
Real Estate Sales and Misc.	$20.8M
Advertising	$11.0M
Federal government	$8.0M
Interest	$3.8M
Utility reimbursement from tenants	$2.8M
Total	$1,413M<p><a href="http://en.wikipedia.org/wiki/Massachusetts_Bay_Transportation_Authority#Fares_and_fare_collection" rel="nofollow">http://en.wikipedia.org/wiki/Massachusetts_Bay_Transportatio...</a>