Electronic Filing for Combined Filing Corporate Income - 2021 Approved Providers

CCH® ProSystem fx® Suite
Website
1-800-739-9998

Corptax, Inc.
Website
1-800-966-1639

On-Line Taxes, Inc.
Website Email
1-877-658-4776

Tax Technologies, Inc.
Website Email
1-678-574-2160

Thomson Reuters – CS Professional Suite UltraTax CS
Website
1-800-968-0600