X0306 4 2022-01-03 0 0001348036 AVALARA, INC. AVLR 0001741458 McFarlane Scott M 255 SOUTH KING ST. SUITE 1800 SEATTLE WA 98104 1 1 0 0 See Remarks Common Stock 2022-01-03 4 S 0 2986 129.00 D 576484 D Common Stock 109375 I By McFarlane Family Investments, LLC This prearranged sale was effected pursuant to a written authorization executed by the Reporting Person on September 10, 2019, and represents shares required to be sold to cover tax withholding obligations in connection with the vesting of restricted stock units. The Reporting Person disclaims beneficial ownership of the shares of Common Stock held by McFarlane Family Investments, LLC, of which the Reporting Person is the sole manager and a member, except to the extent of his pecuniary interest therein, if any. Chairman and Chief Executive Officer /s/ Miles Treakle, Attorney-in-Fact 2022-01-04