AVLR Avalara Inc

As filed with the Securities and Exchange Commission on October 19, 2022

Registration No. 333-262988

Registration No. 333-253543

Registration No. 333-236781

Registration No. 333-229961

Registration No. 333-225651

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

POST-EFFECTIVE AMENDMENT NO. 1

TO

FORM S-8

REGISTRATION STATEMENT NO. 333-262988

FORM S-8

REGISTRATION STATEMENT NO. 333-253543

FORM S-8

REGISTRATION STATEMENT NO. 333-236781

FORM S-8

REGISTRATION STATEMENT NO. 333-229961

FORM S-8

REGISTRATION STATEMENT NO. 333-225651

UNDER

THE SECURITIES ACT OF 1933

255 South King Street, Suite 1800

Seattle, Washington 98104

(Address of Principal Executive Offices)(Zip Code)

AVALARA, INC. 2018 EQUITY INCENTIVE PLAN

AVALARA, INC. 2018 EMPLOYEE STOCK PURCHASE PLAN, AS AMENDED AND RESTATED

AVALARA, INC. 2006 EQUITY INCENTIVE PLAN, AS AMENDED AND RESTATED

TAXCIENT, INC. (f/k/a vAUDIT GROUP, INC.) 2005 STOCK OPTION PLAN, AS AMENDED

(Full titles of the plan(s))

Alesia L. Pinney

Executive Vice President,

General Counsel, and Secretary

255 South King Street, Suite 1800

Seattle, Washington 98104

(206) 826-4900

(Name, address, and telephone number, including area code, of agent for service)

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act.  ☐

On October 19, 2022, as contemplated by the Agreement and Plan of Merger, dated August 8, 2022 (the “Merger Agreement”), by and among the Company, Lava Intermediate, Inc., a Delaware corporation (“Parent”) and Lava Merger Sub, Inc., a Washington corporation and wholly owned subsidiary of Parent (“Merger Sub”), Merger Sub merged with and into the Company, with the Company surviving as a wholly-owned subsidiary of Parent (such transaction, the “Merger”).

As a result of the Merger, the Company has terminated any and all offerings of the Company’s securities pursuant to existing registration statements, including the Registration Statements. Accordingly, the Company is filing these Post-Effective Amendments to the Registration Statements pursuant to Rule 478 under the Securities Act of 1933, as amended, to hereby terminate the effectiveness of the Registration Statements, and in accordance with the undertakings made by the Company in the Registration Statements to remove from registration, by means of these Post-Effective Amendments, any of the securities that had been registered but remain unsold at the termination of the offering, the Company hereby removes from registration all such securities, if any. Each Registration Statement is hereby amended, as appropriate, to reflect the deregistration of all such securities.