Effective Jan. 1, 2013, many of our products will be subject to the 2.3% Medical Device Excise Tax. If the tax applies to a product on your order, the tax will be added. Final taxes will be calculated and displayed on your invoice at the time your order is shipped.You can find out more information on the MDET by going to the IRS website on the topic, click here.If you are a dental laboratory, the IRS website will also explain how to obtain an “exemption” from the MDET through the Form 637 Registration Program and how to provide certification that the materials purchased from us are for further manufacture.