Computation and foreign tax

These two tabs provide a computation of the gains and losses and allow for the input of foreign tax information.

For related information, select the links below:

Computation

This tab displays a Capital Gains computation based on the disposals entered for the year. If you have not entered any disposals for the year then the computation will show only a zero gain.

Downloading the computation

You can download a PDF copy of the computation by selecting Download PDF. You can also download a copy from the Review & File tab for the Tax return after you have prepared the tax return for filing.

Including the computation with the tax return

There are three options available, selected fro a drop-down list alongside the question: Are you attaching a computation with this tax return?

  • NO – Not required - no computation will be attached.

  • YES – Auto-attach this computation - Taxfiler by IRIS will automatically attach its computation to the tax return.

  • YES – I have attached my own - use this option if you are attaching your own computation. You will need to attach the computation manually from the Data Input tab.

Foreign Tax Credit & SWT

  • Foreign Tax Credit Relief and Special Withholding Tax

Use this tab to enter details of foreign tax and SWT for CGT purposes. See HMRC helpsheet hs263 self-assessment.

  • Amount of chargeable gain under UK rules - enter the amount of gain that would be payable if the UK CGT rules were used to calculate the gain

  • Foreign tax paid - enter the foreign tax paid on the disposal

    • Total Foreign Tax Credit Relief on gains - enter the foreign tax credit relief claimed

    • Special Withholding Tax - enter any UK tax withheld.

Useful Resources

A simple guide to Capital Gains Tax