Omnibus Amendment to Company Plans of Avantax, Inc. incorporated herein by reference

This Omnibus Amendment to Company Plans (this “Omnibus Amendment”), entered into by Avantax, Inc., a Delaware corporation formerly known as Blucora, Inc. (the “Company”), effects amendments to each of the plans and agreements of the Company set forth on Schedule A (each a “Company Plan” and together the “Company Plans”) to reflect that the Company amended its certificate of incorporation, effective as of the date hereof, to change its corporate name from “Blucora, Inc.” to “Avantax, Inc.” In furtherance of the foregoing, the Company Plans are hereby amended as described below.

1.Amendment to Company Plans. Effective as of the date hereof, each Company Plan is hereby amended to replace each reference to “Blucora, Inc.” or “Blucora” (including, as applicable, in the title of each Company Plan) with a reference to “Avantax, Inc.” or “Avantax” (as applicable).

2.Entire Agreement. Except as expressly amended by Section 1 above, the terms and conditions of each Company Plan shall remain in full force and effect and shall be read to be consistent with this Omnibus Amendment.

This Omnibus Amendment has been executed and is effective as of the date written above.