Sales tax on contractor services?

Is it common/standard practice for contractors to charge a tax on their work/services? The initial bid that we received from a contractor (and based on which we chose that contractor) did not include sales tax, but the updated bid/estimate that we received in final stages of contract negotiation has an additional line item adding 8.375% sales tax to the total amount. Thanks.

By | 08/06/2007 8:27 PM