Known issues in the latest released version of TaxCalc

Below is a list of notable issues that have been reported in recent versions of TaxCalc since their release. Other issues may exist that have not yet been confirmed or investigated, or are trivial/cosmetic. This should be read in conjunction with our article How are software enhancements and issues prioritised at TaxCalc?

Accounts Production

Issue Description Workaround Case reference

Resolution schedule

In some cases the Average Number of Employees is not saving the value entered. update to the latest release. PROD-14193 resolved in v16.6.920
Multiple period Trial Balance report may have formatting issues where postings are assigned to officers in the current year, but not prior. Run a single year report PROD-14252 v16.5.460
Import from third party may fail where the year end is 29/02/2024.

A. Change the TaxCalc year-end to 28/02/2024 for the import to work and then enter the additional day (29/02/2024) manually.

B. Import via CSV

PROD-11654 TBC
Lead schedules - Capital & Reserves schedule omitted for companies and LLPs applying FRS 102 1A

Account Setup - Statement preferences - Include ‘Statement of changes in equity’ - this willl trigger the Reserves schedule in the Lead Schedule report as well as add an additional ‘Statement of changes in equity’ statement in financial statements.
User can change the statement of preference back to its default after reviewing the Lead schedule. 

PROD-9439 TBC
TPL – In some cases the Profit/Loss for the financial year is removed when posting to taxation account is deleted Post a reversing journal to one of the taxation codes so it nets off to nil (eg debit code 3800 £100 credit code 3800 £100) and rerun the accounts. PROD-7128 TBC
In some cases, check and finish is reporting the Total comprehensive income in SCE does not match SCI when a prior year adjustment is posted If you are happy with the entries the warning can be ignored. PROD-6296 TBC
Posting batch screen is too big and cannot be resized Drag the corner of the window of the posting batch screen to resize PROD-642 TBC

Tax Return Production

Issue Description Workaround Case reference Resolution schedule
SA100 / Data Entered summary displays incorrect SE adjusted profit (FSE73) when using short form and trading allowance

update to latest release.

please note you may need to refresh the form for this to come into effect for existing returns.

PROD-13834 resolved in v16.6.920
SA100 / SimpleStep CGT - HMRC filing error when zero gain is not entered in box CGT17,26,34 when proceeds exceed £50k

Use HMRC forms and enter 0 in boxes CGT17, 26 or 34

 
 PROD-14021 v16.5.460
Read only message appearing in Notifications Panel (Non-practice users) Usage of the application is retained so users can ignore the Notification and proceed with required entries. PROD-5165 TBC

Other modules/General

Issue Description Workaround Case reference Resolution schedule
eSign - There may be a duplication of the display of full and registrar financial statements for each period. n/a PROD-14219 v16.5.460
Client counter widget may return 0  Click on the number to open the report PROD-13826 v16.5.460
CS01 - Filing Error #9999 "Invalidelement AcceptLawfulPurposeStatement" for forms dated before 5 March 2024 Please email support quoting PROD-11404 (support@taxcalc.com) where one of the team can review and advise accordingly. PROD-11404 contact support
VAT Dates not showing on Job even though the business section is set up Edit the job and untick the 'Set client work is ticked' > save and the dates will pull through PROD-8322 TBC
Company Incorporator Locking an incorporation generates Check and Finish messages for missing security information  The missing information has been submitted to Companies House and does not require re-entering when manually polling for a response. PROD-7319 TBC

Technical

Issue Description Workaround Case reference Resolution schedule

Update to v16.6 results in an error which includes:

duplicate key value violates unique constraint "idx_xxxxx_xxxxx_pkey

Launch TaxCalc and click on Skip Update to revert back to the prior release. Please contact TaxCalc Support to report the error. PROD-14732 Pending resolution
HealthCheck too large to send through TaxCalc. How to send a Health Check report PROD-7332 TBC
2FA QR code does not appear after disabling then re-enabling the service. How to Reset the Two-Factor Authentication Details PROD-6417 TBC
2FA Generated authentication codes are incorrect. How do I synchronize my system date and time to use authentication applications N/A N/A
"There is no application set to open the document" when double clicking on a 2021 return on a Mac system. Select Choose Application and choose TaxCalcHub. PROD-5842 TBC
Unable to resize windows Check your scaling in your display settings on windows.  PROD-642 TBC
Display or size issues with TaxCalc on Windows computers Please see Knowledge Base article on: TaxCalc display is too large after update. N/A N/A
Error updating database after restoring an old database into the latest version of TaxCalc Please see Knowledge Base article on: Error Updating Database after restoring from an old backup file. PROD-4777 N/A
Linux / Linux distributions Fetch process does not complete. A blank screen is shown when trying to fetch a new VAT token. PROD-5408,
PROD-5291
N/A


Article ID: 2633
Last updated: 04 Nov, 2025
Revision: 227
Known Issues -> Known issues in the latest released version of TaxCalc
https://kb.taxcalc.com/index.php?View=entry&EntryID=2633