No.
http://www.mass.gov/dor/businesses/...n/convention-center-financing-surcharges.html
Plus Lodging surcharge 2.75%
http://www.mass.gov/dor/businesses/...equiring-registration/room-occupancy-tax.html
Parking garage surcharge.
$2.00
These are State surcharges. The City of Boston also financed a fraction of BCEC. This week Boston City Councilors confirmed during the Uber discussion that revenue from taxi medallion sales are/were used in the financing of BCEC. I suspect that at least some hand-wringing over Uber regulation has to do with Uber not contributing to BCEC (translation: I think we can count on Uber fees in months ahead).