Below are the Release Notes for TaxCalc 2026 releases. Click to see the Release Notes for 2013-2019 > 2020-2024 > 2025
Please note we phase releases out so you may not see this available straight away.
TaxCalc Product Update - version 16.8.310 - Released on 08 January 2026
Please note:
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For Customers who have not already updated to Version 16, this update requires an installer to be run. Please ensure that you have local admin rights before attempting the update.
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This release may result in a change to the IR Mark on any existing V3 CT600 returns.
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Please check our System Requirements before installing this version of TaxCalc.
Product summary
Companies House Filing History
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Polling for submissions via the Companies House Filing Log, where submissions contained at least one Confirmation Statement with director verification pages, will no longer result in the application crashing.
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Checking status via the Companies House Filing Log now works as expected in all scenarios and no longer displays the 'Companies House Filing History already open' dialog. A user that had this screen locked must log in once after update to clear the lock.
TaxCalc 2025 for Individuals & Self-Employed
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