Many designers and decorators charge a fee for professional services. Typical services include consulting, design, layout, selection of color schemes, coordinating furniture and fabrics, supervising installations, etc. The fee may be a negotiated fixed amount or a percentage of the selling price of furnishings, labor, and installation charges. Tax does not apply to charges for professional services that are not directly related to the sale of merchandise. Be sure to list those charges separately on your invoice. However, tax does apply to your charges for fees that are directly related to acquiring and providing furnishings and other merchandise you sell to a client. For example, when you charge fees to accompany a client to a showroom to select furniture the client is buying from you, those fees are taxable. Normally, an interior decorator’s selling price of furnishings should be the retail price — that is, the cost to the decorator plus a reasonable markup. However, decorators so...