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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 19.3.600 - Released on 30 July 2026 Please note: ...
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30 Jul, 2026
Views: 224860
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What is a 1046 authentication error?
When you receive a 1046 error message in TaxCalc (as shown above) after attempting to file tax return, it will be due to one of the following: HMRC do not recognise the filing credentials ( government gateway account user ID and password) which are entered in TaxCalc prior to the submission...
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13 May, 2025
Views: 146407
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Update to refunds made by HMRC
On 1st April 2015, HMRC updated their system to change the way they allocate repayments of overpaid tax. HMRC will only process the refund using the details entered in HMRC Forms: SA100 Core Return > Page 6 > boxes 4-14 SimpleStep: Other information > Bank Details If there had...
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14 Feb, 2023
Views: 115607
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Useful HMRC links and contact numbers
Personal Tax How to pay HMRC – Different ways to pay your Income Tax or Capital Gains Tax Online Services Helpdesk – Help signing up for online services or submission issues Tel: 0300 200 3600 (+44 161 930 8445 international) Registering for Self-Assessment – How and when you need to...
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28 Jun, 2017
Views: 111343
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How do I download TaxCalc?
To download and install TaxCalc on a new computer, or update it on a computer that already uses TaxCalc, we recommend viewing our video tutorial shown below: Alternatively please follow these written steps: Go to the TaxCalc website. Click on Log in and enter your email address and...
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25 Oct, 2022
Views: 103433
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CT600 losses and how to carry them back
Carrying back company trading losses A company incurring a trading loss in an accounting period can make a claim to offset the loss against total profits of the previous 12 months after first having set the losses against any profits of the accounting period in which the loss occurred. The amount...
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04 Mar, 2026
Views: 97225
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How do I resubmit a return or file an amended return?
If, after making a successful submission, you need to make changes and file an amended return. Please see the video tutorial for a walk through of the process. Alternatively, please follow these written steps: Make your corrections. Click on Check & Finish. Check and review your...
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03 Jul, 2026
Views: 88165
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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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05 Jun, 2026
Views: 62320
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How do I complete a tax return for someone who has died?
If you are completing a return for someone who has died, there are two alternative methods of completion depending on the actions that have been completed in communicating with HMRC. If you have advised HMRC of the death of the deceased and informed them that you will be acting as a personal...
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26 Mar, 2026
Views: 58080
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Moving TaxCalc to a new computer (Individual, Partnership and Limited Company users)
On the Old PC Before starting you should know the location of the data files. Start the TaxCalc program and select a file within an appropriate year. The file location will be shown in the ‘File Info’ at the bottom of the screen. In the example shown above, the...
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26 Mar, 2026
Views: 54488
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Where do I declare redundancy or severance payments?
This article will complete an example scenario to best explain the process and entries required for the method of declaring redundancy and severance payments. In this scenario, the overall payment received as per the P60/P45 is £100,000, of which £75,000 is relating to redundancy. SimpleStep...
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29 Mar, 2022
Views: 52943
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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: 48380
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How do I reclaim tax paid on loans to participators that have been repaid?
If you’re a close company that’s previously paid tax on a loan to a participator, you may be able to reclaim that tax. Once the loan has been repaid, released or written off partially or in full, usually the tax can be either offset against current corporation tax liabilities or repaid...
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28 Mar, 2022
Views: 48142
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What exchange rate shall I use to convert foreign income into British pounds?
When inputting any foreign income received on the tax return, this needs to be converted to the sterling equivalent (GBP) in order to declare the income correctly to HMRC. Historically, HMRC provided a centralised webpage containing the required monthly, average and spot currency exchange rates as...
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31 Dec, 2024
Views: 46976
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How do I send my tax return to TaxCalc?
In some cases when you have a query, the TaxCalc support team may need to look at the entries on your return. You can send the return by following these steps: Open the tax return. Click on Help in the top menu. Click on Send Return to TaxCalc. Complete your details for Your name, Your...
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19 Sep, 2018
Views: 44155
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Tax Rates and Allowances
Please select from below: Income Tax National Insurance Contributions Working and Child Tax Credits Child Benefit and Guardian's Allowance Tax Free Savings Account Fuel Benefit Charge Van Benefit Charge VAT Capital Allowances Corporation Tax Authorised Mileage Rates Pension Contributions...
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26 Mar, 2026
Views: 42710
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Cannot connect to database error message appears when starting TaxCalc
If TaxCalc loses contact with, or has never been able to connect to a database, you will receive a similar message to the below: This means that the connection to the database cannot be established. To resolve, you will need to know whether TaxCalc works on the server machine (the machine...
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14 Feb, 2023
Views: 42458
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How do I import a return between non-consecutive years?
The TaxCalc import process currently only permits data to be imported from the previous tax year. For example, TaxCalc 2026 will only be able to import a 2025 tax return file. If for example, you didn't need to purchase TaxCalc 2025 but you do have a prior year file such as TaxCalc 2024, the...
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26 Mar, 2026
Views: 42093
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Why can't I print my document or create a PDF?
If you're having problems printing or creating a PDF this could be due to a problem with the installation or configuration of the default PDF reader. If you're using TaxCalc 2015 or newer you can switch to TaxCalc Viewer instead. For more information read How do I enable TaxCalc Viewer? If your...
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28 Dec, 2018
Views: 40772
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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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02 Jul, 2026
Views: 36945
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How should I treat exempt dividend income/ distributions received from another company on a CT600 (previously called Franked Investment Income)?
The treatment of dividend income received and where this information should be declared on the corporation tax return will depend on whether certain criteria is met (as laid out in the legislation here) which confirms some dividends/distributions are chargeable to corporation tax whilst others are...
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05 Dec, 2024
Views: 35994
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Can I get an official HMRC SA302 summary from TaxCalc?
Unfortunately TaxCalc doesn't produce any documentation bearing the official HMRC logo. This includes summaries such as the SA302. Mortgage lenders accept the SA302 summary produced by third party software AND the HMRC tax year overview. For further information on this please refer to the blog...
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02 Sep, 2025
Views: 34630
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Agents Becoming MTD for VAT Compliant with HMRC - Step by Step guide.
HMRC wants to transform the tax administration to be more effective, more efficient, and make it easier for taxpayers to get their tax right. Making Tax Digital (MTD) for VAT became mandatory for businesses on 1st April 2019. This means that businesses who have an annual turnover of over £85,000...
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13 Jul, 2026
Views: 34622
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System Requirements for TaxCalc
TaxCalc is either ‘fully supported’, ‘partially supported’ or ‘unsupported’ running on the configurations of operating system as listed here. Fully supported TaxCalc is optimised to work on the specified versions of these operating systems and all releases are tested on them. Please...
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10 Feb, 2026
Views: 32557
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How is the reduction of my personal allowance calculated?
The general rule when working out a reduction in personal allowance is that if your income is greater than £100,000, your allowance will be reduced by £1 for every £2 over £100,000. For example, if your income is £110,000, your personal allowance will be reduced by £5,000. The £100,000...
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02 Mar, 2018
Views: 32269
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