|  | Error 3318: The period to which the Return's Accounts applies does not coincide with the effective from/to dates of the referenced Accounts Taxonomy.  When submitting a CT600 to HMRC you may encounter the following submission error message:      This occurs when the iXBRL tagging applied to the accounts does not meet the expected standard.   If you are using TaxCalc, please ensure you are running the latest version of the application. For more... | 
    |  |  09 Mar, 2023
        
        
        
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    |  | Where do I declare Class 4 NIC exemption?  Class 4 NIC exemption is automatically applied where it is relevant to the taxpayer reaching state pension age before the start of the tax year.   If you need to claim this manually for any other reason, you should tick the box Are you exempt from paying Class 4 National Insurance… in one of the... | 
    |  |  24 Mar, 2020
        
        
        
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    |  | ERROR 1608: Unable to lookup taxpayer details  Error message 1608 'Unable to lookup taxpayer details' comes from HMRC. 1608 indicates that HMRC are unable to process their checks required to pass the entered UTR.   This could mean that the UTR:    has been incorrectly entered on the return OR  has been disabled on the Gateway after dissolving... | 
    |  |  21 Jul, 2022
        
        
        
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    |  | Delayed response / Return keeps polling when filing to HMRC  If you receive a status from HMRC of Delayed Response when attempting to file online, this usually means that HMRC's processing systems are very busy.   This won't affect the submission of the return itself but it does mean that the Submission Finished message won't be as prompt as usual.   When... | 
    |  |  26 Sep, 2023
        
        
        
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    |  | How do I contact TaxCalc from outside the UK? There are two ways to contact TaxCalc from outside the UK:    Over the phone    Sales +44    1189 364 807         Support +44   1189 364 805            Email us and we will endeavour to assist via email or remote support tools.     sales@taxcalc.com   support@taxcalc.com        Our opening hours... | 
    |  |  10 Aug, 2023
        
        
        
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    |  | How do I enter a Research and Development Expenditure Credit (RDEC) on my CT600? 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... | 
    |  |  03 Apr, 2023
        
        
        
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    |  | Using the Dividend Database  This article shows you how to add dividend payments to your tax return   If you have imported your previous year’s return into the current year, click on Refresh to update all the payments made in the current tax year. If you have no changes to your holdings they should now all be up to date.  ... | 
    |  |  20 Feb, 2020
        
        
        
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    |  | CT600 how to claim terminal loss relief What is Terminal Loss Relief  Where a company has stopped trading and it has made a loss in its final 12 months of its trade the relief is extended as the company can carry back any trading losses that occur in the final 12 months of a trade and set them off against profits made in any or all of... | 
    |  |  10 Jul, 2025
        
        
        
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    |  | Where do I report foreign earnings not taxable in the UK?  You don't usually have to declare foreign earnings that aren't taxable in the UK on the tax return, however if you do want to declare these earnings please follow the instructions below.  SimpleStep mode    Go to Residence and remittance > Dual Residence.    Complete the wizard for the relevant... | 
    |  |  20 Nov, 2024
        
        
        
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    |  | Basis Period in the transitional year 2023/24 - how to use the basis period calculator Basis Period Entries in TaxCalc (transitional year 2023/24)   This article explains the entries to make for the 2023/24 transitional year. HMRC's business manual explains the rules, if you need to familiarise yourself before starting your entries in TaxCalc.   You can either enter the adjustments... | 
    |  |  06 Feb, 2025
        
        
        
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    |  | How do I remove duplicate property pages?  Duplicate property pages may be created if you've imported a return from last year and:    you used the joint import to import income from another individual tax return which contains income from the same property.  you have manually entered details with the same property name.    You can... | 
    |  |  19 Nov, 2015
        
        
        
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    |  | How do I import data from SA800 to SA104 Partnership pages (Individual User)?  If you're completing a partnership return, you can import the data into the SA104 pages in the individual return by following these steps:    Open up the individual return.  Go to:                                                       SimpleStep Mode: Your Work > Partnership Management   HMRC... | 
    |  |  21 Mar, 2024
        
        
        
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    |  | What information will I receive when using Fetch Taxpayer Data (HMRC Self Assessment APIs)?  HMRC has provided a method of sending information relevant to the completion of a Tax Return called Application Program Interfaces or APIs. This is the first part of their overall Digital transformation project known as Making Tax Digital. This allows TaxCalc to request information held by HMRC... | 
    |  |  25 Mar, 2025
        
        
        
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    |  | Basis Period Transition when more than one accounting period (2023/24) How should I enter details of multiple accounting periods for a self employment?  From tax year 2024-25 onwards, self-employed individuals will be taxed on the profits that arise in the tax year that runs from 6 April to the following 5 April (the tax year basis). This replaces the previous current... | 
    |  |  25 Mar, 2025
        
        
        
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    |  | How do I recover CIS tax deducted on a CT600?  Unfortunately, there is no facility to recover CIS tax through the CT600.   CIS tax is an employment tax that's deducted from a limited company's gross income and therefore forms part of the PAYE system. Unfortunately, HMRCs systems do not synchronise information and therefore the required entries... | 
    |  |  15 Sep, 2017
        
        
        
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