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Head-to-head · Small Business Tax Software

UltraTax CS vs ATX

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score UltraTax CS #6 in Small Business Tax Software 8.5/10 Pricing on request ✓ 0 of 4 features Visit UltraTax CS
ATX #10 in Small Business Tax Software 8.0/10 Paid ✓ 2 of 4 features Visit ATX

UltraTax CS leads on 0 checks, ATX on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreUltraTax CS · 8.5/10
  • Most featuresATX · 2 of 4

UltraTax CS scores higher on our rubric for small business tax software: 8.5 against 8.0 out of 10; our editors rank them #6 and #10.

UltraTax CS is the better fit for professional firms handling complex multistate returns. ATX is the better fit for firms needing extensive forms and research.

  • UltraTax CS fits best

    Professional firms handling complex multistate returns

  • ATX fits best

    Firms needing extensive forms and research

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature UltraTax CS 8.5/10 Visit ↗ ATX 8.0/10 Visit ↗
At a glance
Editor score 8.5 8.0
Ranking #6 in Small Business Tax Software #10 in Small Business Tax Software
Best for Professional firms handling complex multistate returns Firms needing extensive forms and research
Pricing model Paid Paid
Starting price Pricing on request —
Free plan Not checked yet —
Free trial — —
Deployment Cloud, Desktop Self-hosted, Desktop
Built for Solo, Small business, Mid-market, Enterprise Small business, Solo
Features UltraTax CS 0/4 · ATX 2/4
Federal e-file Not checked yet ✓ (best)
State e-file Not checked yet ✓ (best)
Bookkeeping imports Not checked yet Not checked yet
Prior-year import Not checked yet Not checked yet
Specs
Business entity support Not checked yet C corporations, S corporations, partnerships, estates and trusts
Included state returns Not checked yet 0 returns
Our review
Pros
  • Covers federal, state, and local returns across major entity types
  • Multistate allocation, apportionment, diagnostics, and validation tools
  • Integrates with Thomson Reuters and partner practice-management products
  • More than 6,000 federal, state, and local compliance forms
  • Diagnostics flag e-filing errors, omissions, and overridden entries
  • Includes tax research, electronic signatures, and payroll reporting
Cons
  • Custom pricing varies by users, returns, states, and jurisdictions
  • The feature breadth may exceed the needs of simpler tax practices
  • Designed for professional preparers rather than individual taxpayers
  • ATX 1040 excludes state business returns
  • Desktop software may not fit cloud-first workflows
  • No free plan is available
Our verdict

UltraTax CS is professional tax preparation software for accounting firms and tax preparers. It handles federal, state, and local returns for individuals, corporations, partnerships, estates, trusts, nonprofits, and other return types. The…

Read the review →

ATX is desktop, forms-based tax preparation software from Wolters Kluwer for CPAs, individual tax preparers, and small firms. It supports federal, state, and local returns across individual, C corporation, S corporation, partnership,…

Read the review →
  1. UltraTax CSSmall Business Tax Software 8.5Pricing on request
  2. ATXSmall Business Tax Software 8.0Paid

Strengths and trade-offs

  • UltraTax CS — where it wins

    • Covers federal, state, and local returns across major entity types
    • Multistate allocation, apportionment, diagnostics, and validation tools
    • Integrates with Thomson Reuters and partner practice-management products

    Where it doesn't

    • Custom pricing varies by users, returns, states, and jurisdictions
    • The feature breadth may exceed the needs of simpler tax practices
    • Designed for professional preparers rather than individual taxpayers
  • ATX — where it wins

    • More than 6,000 federal, state, and local compliance forms
    • Diagnostics flag e-filing errors, omissions, and overridden entries
    • Includes tax research, electronic signatures, and payroll reporting

    Where it doesn't

    • ATX 1040 excludes state business returns
    • Desktop software may not fit cloud-first workflows
    • No free plan is available

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update