Advanced Tax Solutions 

CCH Incorporated 

Corptax Inc 

Credit Karma Tax, Inc.

Crosslink Professional Tax Solutions LLC

Drake 

E-File Tax Returns, Inc

EZ Tax Return

H&R Block

I-CLUB (Paper Only)

Intuit 

Jackson Hewitt

Lamson Tech 

On-Line Taxes 

Price Waterhouse Coopers LLP 

RUSHTAX

STF Services Corp (Paper only)

Taluy California Corp 

TaxAct 

Taxhawk, Inc. 

TaxLync

Taxslayer 

Taxware Systems

Tax Technologies Inc. 

Thomson Reuters 

Universal Tax Systems Inc. 

Wilson LLP (Paper only)