Equus Software

Release No.

Release Note on Help Center 📝


Release Date 📅



25.1

Fri. 24th Jan


Thurs. 30th Jan



25.2

Fri. 21st Mar


Thurs. 27th Mar



25.3

Fri. 23rd May


Thurs.…

Equus Tax Engine Timetable 2025 - Release Dates

Updates Authorities Resources


Click for full PDF release notes
Updates
Updates include calculation and rate changes to reflect current tax law resulting from inflation adjustments, legislative cha

Equus Tax Engine v.25.1 released 30 January 2025

Key Features Updates Supported Authorities Resources


Click for full PDF release notes
Key Features
The current release includes several new features which significantly enhance the functionality o

Equus Tax Engine v.25.2 released 27 March 2025

Key Features Features Updates Supported Authorities Resources


Click for full PDF release notes
Key Features
The current release includes several new features which significantly enhance the functi

Equus Tax Engine v.25.3 released 29 May 2025

Equus Tax Engine v.25.4 released 31 July 2025

Click for full PDF Release NotesUnited StatesIncome TaxMade the following changes as a result of H.R. 1 (the One Big Beautiful Bill Act), retroactively effective January 1, 2025:
Increased the…

Equus Tax Engine v.25.4.1  released 14 August 2025

Equus Tax Engine v.25.5 released 25 September 2025

Key Features
The current release includes several new features which significantly enhance the functionality of the Equus Platform.
Commuter Cost Estimates and Tax Apportionment
Added a new option, C

Equus Tax Engine v.25.6 released 26 November 2025

Updates
United Kingdom
Social Security
Corrected the social security calculation when the 52-week rule applies. The change delivered with Equus Tax Engine v.25.6 resulted in scenarios where social ta

Equus Tax Engine v.25.6.1 released 19 December 2025

Equus Tax Engine 2025

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