D.C. Code § 47-2009: Tax to be separately stated.

Upon each sale of tangible personal property or services, the gross receipts from which are taxable under this chapter, the reimbursement of tax to be collected by the vendor from the purchaser under the provisions of this chapter shall be stated and charged separately from the sales price and shown separately on any record thereof at the time the sale is made or evidence of sale issued or employed by the vendor.