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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...
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29 May, 2026
Views: 59656
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How should boxes 326, 327 and 328 be completed on a CT600?
This article will explain how and when boxes 326, 327 and 328 should be populated on a CT600 return with regard to the number of associated companies. Firstly, you should review HMRC's company tax return guide to confirm if entries are required in these boxes. An extract has been provided below...
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26 May, 2026
Views: 13197
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TaxCalc bookkeeping spreadsheet transaction templates for MTD
To assist you with complying with digital links for MTD reporting, we have produced spreadsheet templates for recording transactions and summarising totals. The totals can then be imported by VAT Filer (for quarterly MTD VAT return submissions) and by MTD Quarterly Filer (for quarterly MTD for...
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26 May, 2026
Views: 23117
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TaxCalc Release Notes 2026
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 19.2.450 - Released on 20 May 2026 Please note: ...
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20 May, 2026
Views: 219543
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Foreign Income and Gains - what is the temporary repatriation facility (TRF) ?
The temporary repatriation facility (TRF) was introduced in the Finance Act 2025 to replace the remittance basis for UK non-domiciled residents and remove domicile as a tax factor, allowing eligible UK-resident individuals to designate pre-6 April 2025 foreign income and gains (FIG) and pay a...
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14 May, 2026
Views: 100
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Foreign income and gains (FIG) regime replacing the remittance basis from 6 April 2026
The Foreign Income and Gains (FIG) regime replaces the previous remittance basis from 6 April 2025, although neither an individual’s nationality, domicile at any time, nor their ability to claim the remittance basis in previous years affects eligibility for the FIG regime. The regime allows...
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14 May, 2026
Views: 2231
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Default Client List Views
You can create and manage default views within the Practice Manger clients screen to ensure you're seeing the information most pertinent to you and your practice. You can also select from the following default views already setup: Latest Accounts View Latest CS View Latest CT View Latest...
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13 May, 2026
Views: 572
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TaxCalc Release Notes 2013 - 2019
Below are the Release Notes for previous versions of TaxCalc. Click to see the Release Notes for 2020-2024 > 2025 > 2026 TaxCalc Product Update Version 11.0.002 Released on 16th December 2019 Applying the Update Please note: This update requires an installer to be run. Please ensure...
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08 May, 2026
Views: 14518
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TaxCalc Release Notes 2020 - 2024
Below are the Release Notes for previous versions of TaxCalc. Click to see the Release Notes for 2013-2019 > 2025 > 2026 Please note we phase releases out so you may not see this available straight away. TaxCalc Product Update - version 16.1.200 - Released on 5 December 2024 Please note:...
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08 May, 2026
Views: 6795
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Guide to your client’s journey through the verification process
Your client will receive an email/SMS providing them with a link to complete the biometric identity check and a personal registration code. Selecting Get Me In will start the check. The link will open a secure page in the default browser: In the next step they have to read through...
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06 May, 2026
Views: 839
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Audio-Visual Expenditure Credit (AVEC) and Video Games Expenditure Credit (VGEC)
The new Audio-Visual Expenditure Credit (AVEC) and Video Games Expenditure Credit (VGEC) replaces the current creative tax reliefs for film, high-end TV, animation, children’s TV and video games. Under AVEC and VGEC companies will receive an above the line tax credit based on qualifying...
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30 Apr, 2026
Views: 4850
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How do I enter a Research and Development Expenditure Credit (RDEC) on my CT600 - accounting periods starting before 1 April 2024
The research and development expenditure credit (RDEC) replaced the large company scheme in April 2016 to continue to encourage investment in R&D. A large company can claim a taxable credit on qualifying R&D expenditure, up to 2 years after the end of the accounting period it relates to. In...
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28 Apr, 2026
Views: 8687
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MTD Quarterly Filer - Getting started
MTD Quarterly Filer provides the functionality to complete the in-year submissions (Quarterly Updates) and interacts with TaxCalc modules and other bookkeeping/spreadsheet solutions. Setting up businesses in MTD Quarterly Filer: After launching MTD Quarterly Filer: Select the client you are...
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28 Apr, 2026
Views: 1289
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MTD Quarterly Filer - Collateral
We have collated all the information you'll need to start submitting quarterly updates to HMRC using MTD Quarterly Filing, as well as information on starting the MTD for income tax process with HMRC. Setting up and using MTD Quarterly Filer Getting started How to submit data Excel...
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28 Apr, 2026
Views: 2524
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How to send a Health Check report
In order to diagnose certain issues it may be necessary to send TaxCalc a Health Check. This can be completed from inside the program by using the menu options on the top toolbar. Help > Send HealthCheck to TaxCalc If, however, you cannot open the program, you can send a Health Check...
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22 Apr, 2026
Views: 8428
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How do I carry back self employment losses?
To carry back a self-employment loss for the current year to a previous year, you need to make a manual adjustment to your tax return for the year in which the loss occurred. You don't need to resubmit your return for the previous year. To calculate the manual tax adjustment figure, follow these...
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16 Apr, 2026
Views: 12717
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How do I complete a return for a foster carer?
You need to take certain things into account when completing the return, for example, the qualifying amounts that you can deduct from total care receipts. Deductions from total care receipts (2026) include: £19,690 per household. a weekly amount for each cared for child or adult £415...
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16 Apr, 2026
Views: 47305
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TaxCalcHub.exe – Bad Image C:\WINDOWS\SYSTEM21\VCRUNTIME140.dll & MSVCP140.dll
If the following messages appear when trying to run the TaxCalc application for the first time on a new Windows 10 or 11 PC, the below steps can be used to fix the issue: Click OK until there are no further 140.dll errors showing (there may be a total of x4 .dll errors): Right...
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10 Apr, 2026
Views: 1545
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Filing a CT600 for a non-resident company
From 6 April 2020, non-UK resident companies including those who invest in UK property through collective investment vehicles (CIV) will need to pay Corporation Tax instead of Income Tax on profits from UK property. This will require submission of an annual corporation tax return (CT600) and...
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08 Apr, 2026
Views: 3505
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How do I increase/decrease my payments on account towards the following tax year?
You can't increase payments on account towards the following tax year – you can only reduce them. You can choose to pay more on account, but HMRC will only ask for the payment on account calculated in your statement. To reduce payments on account, please follow the below instructions: HMRC...
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27 Mar, 2026
Views: 26140
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How much tax will I need to pay in January?
The information you provide within the SA302 calculation will determine how much tax is due. This calculation will then apply any tax already deducted and leave you with a balancing payment (if there's any tax outstanding) or a repayment due (if you've overpaid in tax). If your total tax bill is...
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26 Mar, 2026
Views: 3356
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How do I complete the CT600 for a long period of accounts? (Business users)
If your accounts cover a period of more than 12 months, you'll need to complete the CT600 for two periods, as follows: Prepare the accounts for the full period and generate an XBRL version or PDF-with explanation (if required). Apportion the profit/loss into a 12-month period and the remaining...
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26 Mar, 2026
Views: 10608
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How do I switch to a summary breakdown of expenses on my SA800 partnership return?
You can only switch to a summary breakdown of expenses in your SA800 partnership return if turnover is below the threshold for declaring income on the Full Form. The business threshold for 2025-26 is £90,000. To switch to a summary breakdown you need to clear all entries made on the Full Form,...
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26 Mar, 2026
Views: 1146
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Where do I enter payments on account?
To enter payments on account, go to the Payments on account section using SimpleStep or HMRC Forms. SimpleStep mode Working out your tax > Payments on account for 2025-26 HMRC Forms mode Tax Calculation > Payments on account > Box 10 and 11 (bottom of the page) When do I make...
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26 Mar, 2026
Views: 8583
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Class 2 NIC from 2024/25 - small profits threshold and voluntary contributions
Changes to Class 2 NIC thresholds For tax years 2022/23 and 2023/24, you needed to pay Class 2 NIC if your profits were above the Lower Profits Limit. For 2025/26 onwards, if your profits are above the Small Profits Threshold (£6,845) Class 2 contributions are treated as having been paid to...
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26 Mar, 2026
Views: 6913
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