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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

CIC Accounts - 'Your package accounts zip file is not valid'. Please send the file into Support to manually amend PROD-13967 Summer release
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
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
CT600 - Capital Allowances - Issues relating to new FYA @ 40% allowance N/A PROD-15659 April 2026 Hotfix
R185 Estate - PDF showing 26/27 N/A PROD-15519 April 2026 Hotfix
#8039 validation for RDEC not required Ignore validation and proceed with filing. PROD-15660 April 2026 Hotfix
#8040, #4085, #4052 Errors - RDEC filing error Round figures in whole pounds for box L72. PROD-15720 TBC
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
Mac - Send to document manager option not appearing in Check and Finish N/A PROD-15446 Summer release
In some cases, as eSign envelope's signature locations change after they have been originally set This is currently being investigated. PROD-15474 under investigation
In some cases editing or creating custom fields or workflow via admin centre \ applications can cause the application to freeze. This is currently being investigated PROD-15427 Resolved in v18.1.200
In some cases, an eSign envelope generates a 4003010 error Delete and recreate the envelope and avoid using the Save before sending. PROD-15359 Resolved in v18.1.200

Technical

Issue Description Workaround Case reference Resolution schedule
After some Macs have updated the application can error on startup contact support@taxcalc.com so we can check your account as the advice can differ depending on which modules you have PROD-15422 Resolved in v18.1.200
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
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
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