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Head-to-head · Tax Software

ONESOURCE Income Tax vs ATX

  • Updated Oct 2026
  • Both researched from official sources
  • 2 checks side by side
Higher score ONESOURCE Income Tax #6 in Tax Software 8.7/10 Pricing on request ✓ 1 of 2 features Visit site
ATX #8 in Tax Software 8.4/10 Paid ✓ 0 of 2 features Visit Wolters Kluwer

ONESOURCE Income Tax leads on 0 checks, ATX on 0, and 2 are even. Who comes out ahead on the 2 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreONESOURCE Income Tax · 8.7/10
  • Most featuresONESOURCE Income Tax · 1 of 2

ONESOURCE Income Tax scores higher on our rubric for tax software: 8.7 against 8.4 out of 10; our editors rank them #6 and #8.

ONESOURCE Income Tax is the better fit for mid-market and enterprise corporate tax teams. ATX is the better fit for small firms preparing diverse U.S. business returns.

  • ONESOURCE Income Tax fits best

    Mid-market and enterprise corporate tax teams

  • ATX fits best

    Small firms preparing diverse U.S. business returns

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 ONESOURCE Income Tax 8.7/10 Visit ↗ ATX 8.4/10 Visit ↗
At a glance
Editor score 8.7 8.4
Ranking #6 in Tax Software #8 in Tax Software
Best for Mid-market and enterprise corporate tax teams Small firms preparing diverse U.S. business returns
Pricing model Paid Paid
Starting price Pricing on request —
Free plan Not checked yet —
Free trial — —
Deployment Cloud Self-hosted, Desktop
Built for Mid-market, Enterprise Small business, Solo
Features ONESOURCE Income Tax 1/2 · ATX 0/2
Electronic filing ✓ (best) Not checked yet
Client portal Not checked yet Not checked yet
Specs
Tax types Not checked yet Not checked yet
Return types Not checked yet Not checked yet
Jurisdictions Not checked yet Not checked yet
Platforms Not checked yet Not checked yet
Our review
Pros
  • Prepares federal, state, local, and international corporate returns
  • Tracks electronic filings and transfers federal data to state returns
  • Links trial-balance records to audit traces and tax-provision workflows
  • Supports federal, state, and local individual and business returns
  • More than 6,000 forms with e-filing diagnostics and inline help
  • Includes tax research resources, electronic signatures, and payroll reporting
Cons
  • Pricing requires contacting sales
  • Designed for corporate tax operations, not individual tax filing
  • Cloud and API access may not suit teams seeking desktop-only software
  • ATX 1040 excludes state business returns
  • Paid software has no free plan
  • Desktop and self-hosted deployment may not suit cloud-first teams
Our verdict

ONESOURCE Income Tax is corporate tax software for teams preparing federal, state, local, and international returns. Its intended audience is mid-market and enterprise tax departments managing multistate or international compliance. The…

Read the review →

ATX is desktop, forms-based professional tax preparation software from Wolters Kluwer. It is designed for CPAs, individual tax preparers, and small firms preparing diverse U.S. filings. Coverage spans federal, state, and local returns for…

Read the review →
  1. ONESOURCE Income TaxTax Software 8.7Pricing on request
  2. ATXTax Software 8.4Paid

Strengths and trade-offs

  • ONESOURCE Income Tax — where it wins

    • Prepares federal, state, local, and international corporate returns
    • Tracks electronic filings and transfers federal data to state returns
    • Links trial-balance records to audit traces and tax-provision workflows

    Where it doesn't

    • Pricing requires contacting sales
    • Designed for corporate tax operations, not individual tax filing
    • Cloud and API access may not suit teams seeking desktop-only software
  • ATX — where it wins

    • Supports federal, state, and local individual and business returns
    • More than 6,000 forms with e-filing diagnostics and inline help
    • Includes tax research resources, electronic signatures, and payroll reporting

    Where it doesn't

    • ATX 1040 excludes state business returns
    • Paid software has no free plan
    • Desktop and self-hosted deployment may not suit cloud-first teams

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update