Sub Categories
folder SA100 Individual Return
folder MTD Tax Return
MTD tax return for individuals
folder SA800 Partnership Return
folder SA900 Trust Return
folder CT600 Corporation Tax Return
folder R40
folder Filing Online
folder MTD Quarterly Filer


Tax Return Production
How do I calculate payments on account when there is Marriage Allowance?
HMRC are changing the calculation of payments on account when there is a Marriage Allowance transfer. Currently their SA110 notes suggest that payments on account should be calculated on the tax due amount, before applying the Marriage Allowance. The correct process is explained in the below...
rating 09 Mar, 2023 Views: 1814
How to complete the entries for notice of consent (CT600C) using V2 Form
This article relates to V2 form of 2006 version of CT600. For the version 3 form, please see the link to 'How to complete the entries of consent V3 2015 form'. If you are completing the group and consortium pages to either claim or surrender losses for group relief, you may have to add a notice...
rating 07 Jun, 2023 Views: 1798
How do I claim investments or shares in a Seed Enterprise Investment Scheme?
You can claim income tax relief on investments in a Seed Enterprise Investment Scheme in SimpleStep or HMRC Forms mode. Go to Tax reliefs and allowances > Relief on investments. Enter the amount in the box labelled Subscriptions for shares under the Seed Enterprise Investment Scheme. Go...
rating 06 Jun, 2023 Views: 1796
Fetch taxpayer data - HMRC does not recognise that a client is authorised
When using Fetch taxpayer data to retrieve information from HMRC, if HMRC does not recognise that the client has been authorised, a message will appear : 'HMRC does not recognise that this client has been authorised with the agent credentials being used in token management'. Note : HMRC have...
rating 29 Oct, 2025 Views: 1795
MTD Quarterly Filer - How to submit data
Updates need to be sent to HMRC quarterly and by the deadline, to avoid penalties, but it is possible to send more frequently if this is preferred. Click Create New Update. From here the Import data screen is displayed where you can import, map and save data. If the data being imported is for...
rating 27 Jun, 2025 Views: 1775
Message from TaxCalc - Cannot replace the file (when printing/previewing or saving a PDF)
If you receive a message similar to the following when creating a PDF or previewing one, it means that there is an illegal character at the end of the client's name. The character(s) normally show as a space and are most often carriage returns caused by copying and pasting the name from...
rating 03 Jan, 2024 Views: 1763
How do I enter multiple entries for Capital Gains Tax on my SA900 return?
To enter multiple entries for Capital Gains Tax on your SA900 return, follow these steps: Go to Capital Gains > CG 1. Enter the figures for gains and losses. If you have different types of disposal, column AA, type Q,U,L,O you may need to split further. Add a further page if you have...
rating 23 Mar, 2021 Views: 1738
How to create a CT600 from an Accounting Period
When creating a period for a CT600, you have the option of specifying the period manually or using the existing Accounting Period. To use the Accounting Period dates: Open Practice Manager. Right-click on the client. Select Open in Tax Return Production. Click on New Return. Change the...
rating 21 Mar, 2024 Views: 1711
How do I remove text above box 19 in Additional Information?
If you import your tax return from the previous year, you might see imported text above box 19 of the Additional Information section. This text often relates to data contained within a wizard such as losses, pensions and so on. If this data is not required in the current year, you’ll need to...
rating 13 Apr, 2022 Views: 1682
Where do I find the Capital Gains Tax summaries?
If you've completed the Capital Gains Tax pages in SimpleStep mode, the appropriate disposal, intermediate and final calculations will be in a pdf that's automatically attached to the return. You can view and print all your disposals and the intermediate and final summaries by following these...
rating 02 Mar, 2018 Views: 1645
I cannot delete a CT600 return from TaxCalc
In certain instances, customers have reported that they are having difficulties in deleting a CT return from the TaxCalc application. This is specifically in instances where users are on the practice interface and use our Accounts Production module too. We are looking to input additional...
rating 22 Oct, 2020 Views: 1626
You have attached iXBRL Accounts to this return but there appears to be one or more areas where the content is 'malformed' (not correct)
If you receive this error message it means that either the downloaded file is corrupt or it contains special characters that HMRC's systems can't read. Corrupt file If you opened the downloaded file then used File > Save As, it might be corrupt. The correct way to save a downloaded file...
rating 31 Mar, 2017 Views: 1603
HMRC toolkits to help reduce errors in tax returns
HMRC publishes a series of toolkits to give guidance on areas where there are frequent errors in tax returns. These toolkits also set out steps you can take to reduce these errors. They are updated every year as required. The toolkits are available on the HMRC website (as PDFs) and cover the...
rating 17 Jun, 2016 Views: 1598
Why aren't the IRmark and time stamp appearing when I print a tax return?
If the IRmark and time stamp are on the top of each page, and on the pdf preview but don't appear when you print your return, check your printer settings: Go to the heading Page Sizing & Handling. Click on Fit. Click on Fit to printable area or Shrink to fit (or similar). Print document. ...
rating 24 Mar, 2022 Views: 1591
R&D Tax Relief Claims - additional forms required from August 2023 onwards
Information required by HMRC before submitting claims for all R&D tax relief 1. For accounting periods beginning on or after 1 April 2023, you should check if you need to submit a claim notification form to notify HMRC in advance of your claim. A claim notification form should be submitted...
rating 21 Sep, 2023 Views: 1576

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