CCH ProSystem fx Tax vs ONESOURCE Certificate Manager

CCH ProSystem fx Tax

5.8 #26 in Small Business Tax Software

7.0 #39 in Tax Compliance Software

	CCH ProSystem fx Tax	ONESOURCE Certificate Manager
Platforms	Windows	api, self-hosted, Web, Windows
Business entity support	Corporations (1120, 1120S, 1120F), partnerships (1065, 8865), fiduciaries (1041), estates and gifts (706/709), and individual returns (1040)
Federal e-file	Yes	Yes
State e-file	Yes	Yes
Included state returns	50 returns
Bookkeeping imports	Yes
Prior-year import	Yes
Scenario modeling	Yes	Yes
Multi-year projection	Yes
Capital gains modeling	Yes
Retirement income modeling	Yes
Data import	Yes	Yes
Electronic filing		Yes
Consolidated returns		Yes
Tax provision support		Yes
Accounting integrations		Yes
Deployment		cloud
Tax return filing		Yes
Free plan		No
Jurisdictions covered		62 jurisdictions
Supported tax types		sales tax exemption certificates
Return filing		Yes
Filing support level		none
API access		Yes
Real-time calculation		Yes
Tax types		multiple
Commerce connectors		Yes
Exemption certificates		Yes
Forms covered		both
Correction filing		Yes
Import methods		api
Filer types		both
State returns		Yes
Amended returns		Yes
Self-employed support		Yes
Electronic filing included		Yes
Accounting standards		both
Provision scope		current and deferred
Rate reconciliation		Yes
Provision-to-return		Yes
Excel workflow		Yes
Case law database		Yes
Current law updates		Yes
AI research tools		Yes
Document alerts		Yes
Platform		web
Sanctions screening		Yes
Tariff classification		Yes
Landed-cost calculation		Yes
Trade document generation		Yes
Customs filing		Yes