https://kb.taxcalc.com/ https://kb.taxcalc.com/index.php?View=entry&EntryID=2143 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... Wed, 22 Apr 2026 11:46:33 +0100 https://kb.taxcalc.com/index.php?View=entry&EntryID=2015 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... Thu, 16 Apr 2026 16:11:31 +0100 https://kb.taxcalc.com/index.php?View=entry&EntryID=2130 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... Thu, 16 Apr 2026 09:05:55 +0100 https://kb.taxcalc.com/index.php?View=entry&EntryID=2098 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... Thu, 16 Apr 2026 09:01:47 +0100 https://kb.taxcalc.com/index.php?View=entry&EntryID=3081 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... Fri, 10 Apr 2026 12:06:03 +0100 https://kb.taxcalc.com/index.php?View=entry&EntryID=3171 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... Wed, 08 Apr 2026 10:21:21 +0100 https://kb.taxcalc.com/index.php?View=entry&EntryID=2633 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... Thu, 02 Apr 2026 15:59:25 +0100 https://kb.taxcalc.com/index.php?View=entry&EntryID=911 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... Fri, 27 Mar 2026 12:08:58 +0000 https://kb.taxcalc.com/index.php?View=entry&EntryID=2324 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... Thu, 26 Mar 2026 16:09:43 +0000 https://kb.taxcalc.com/index.php?View=entry&EntryID=2231 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... Thu, 26 Mar 2026 16:09:28 +0000 https://kb.taxcalc.com/index.php?View=entry&EntryID=2256 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... Thu, 26 Mar 2026 16:09:13 +0000 https://kb.taxcalc.com/index.php?View=entry&EntryID=786 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... Thu, 26 Mar 2026 16:08:12 +0000 https://kb.taxcalc.com/index.php?View=entry&EntryID=3321 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... Thu, 26 Mar 2026 16:04:58 +0000 https://kb.taxcalc.com/index.php?View=entry&EntryID=863 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... Thu, 26 Mar 2026 16:04:45 +0000 https://kb.taxcalc.com/index.php?View=entry&EntryID=787 You'll usually have to make two payments on account for the current year's tax: One by 31 January in the current year. One by the following 31 July. Each payment is half of the tax due for the previous year. For example, for the tax year... Thu, 26 Mar 2026 16:04:27 +0000