X0306 4 2020-11-02 0 0001348036 AVALARA, INC. AVLR 0001269473 INGRAM WILLIAM 255 SOUTH KING ST. SUITE 1800 SEATTLE WA 98104 1 0 0 0 Common Stock 2020-11-02 4 M 0 25000 12.60 A 26731 D Common Stock 2020-11-02 4 S 0 5667 141.00 D 21064 D Common Stock 2020-11-02 4 S 0 2487 141.82 D 18577 D Common Stock 2020-11-02 4 S 0 2106 146.08 D 16471 D Common Stock 2020-11-02 4 S 0 3898 147.05 D 12573 D Common Stock 2020-11-02 4 S 0 4515 148.10 D 8058 D Common Stock 2020-11-02 4 S 0 5772 148.91 D 2286 D Common Stock 2020-11-02 4 S 0 555 150.06 D 1731 D Stock Option (right to buy) 12.60 2020-11-02 4 M 0 25000 0.00 D 2026-01-25 Common Stock 25000 25000 D The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 13, 2020. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $140.47 to $141.435, inclusive. Upon request by the Issuer, any security holder thereof, or the staff of the Securities and Exchange Commission, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2) through (7) to this Form 4. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $141.55 to $142.06, inclusive. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $145.52 to $146.51, inclusive. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $146.58 to $147.45, inclusive. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $147.65 to $148.63, inclusive. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $148.65 to $149.525, inclusive. 25% of the total shares subject to the option vested and became exercisable on December 14, 2016, and 1/48th of the total shares subject to the option vested and became exercisable monthly thereafter such that the option was fully vested and exercisable on December 14, 2019. Exhibit 24 - Power of Attorney /s/ Miles Treakle, Attorney-in-Fact 2020-11-03