Filed pursuant to 424(b)(3)
Registration No. 333-200594

BLACK CREEK INDUSTRIAL REIT IV INC.
SUPPLEMENT NO. 9 DATED FEBRUARY 1, 2018
TO THE PROSPECTUS DATED JULY 3, 2017

        This prospectus supplement ("Supplement") is part of and should be read in conjunction with the prospectus of Black Creek Industrial REIT IV Inc., dated July 3, 2017 (the "Prospectus"), as supplemented by Supplement No. 1, dated August 9, 2017; Supplement No. 2, dated August 28, 2017; Supplement No. 3, dated September 13, 2017; Supplement No. 4, dated September 21, 2017; Supplement No. 5, dated November 2, 2017; Supplement No. 6, dated November 3, 2017; Supplement No. 7, dated November 16, 2017; and Supplement No. 8, dated December 4, 2017. Unless otherwise defined herein, capitalized terms used in this Supplement shall have the same meanings as in the Prospectus.

        The purpose of this Supplement is as follows:

A.

To provide an update regarding the distribution reinvestment plan; and



B.

To update Appendix B to the Prospectus.

A.    Update regarding the distribution reinvestment plan

        Upon purchasing shares of our common stock in this offering, an investor will automatically become a participant in our distribution reinvestment plan unless an investor is a resident of certain states, is a client of a participating broker dealer that does not permit automatic enrollment in the distribution reinvestment plan, or the investor elects not to become a participant by noting such election on the subscription agreement. The list of states where automatic enrollment is not permitted is hereby revised to include Oregon and Washington in the section titled "Prospectus Summary—Distribution Reinvestment Plan," in response to the question, "May I Reinvest My Cash Distributions in Additional Shares?" in the section titled "Questions and Answers Relating to this Offering," and in the section titled "Description of Capital Stock—Distribution Reinvestment Plan," on pages 31, 48 and 213, respectively, of the Prospectus.

B.    Update to Appendix B.

        The subscription agreement included as Appendix B to the Prospectus is hereby superseded and replaced with Appendix A to this supplement.

APPENDIX A: FORM OF SUBSCRIPTION AGREEMENT

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Filed pursuant to 424(b)(3) Registration No. 333-200594