Managing Capital Gains Tax efficiently is a key part of delivering effective client advice. The Capital Gains Tool provides a comprehensive view of realised and unrealised gains across a client's General Investment Accounts (GIAs), helping you understand tax positions, model disposal strategies, and make informed decisions before placing trades. Whether you're reviewing historical gains or planning a withdrawal, the tool gives you the insight needed to plan and execute tax-efficient recommendations.

In this article

• Accessing the CGT tool
• Key Features
  • Setting the reporting period
  • Obtaining realised and unrealised gains
  • Transaction-level reporting
  • Accessing the matching rules
  • Downloading and reading a report
• What if scenario planner
  • How to access the capital gains scenario tool
  • Raising a Target Cash Amount
  • Proceeding to sell directly
• Book costs
• Alerts
• Future developments

Accessing the Capital Gains Tool

The Capital Gains Tool can be found within the client record by selecting the Capital Gains tab.

Key Features

Reporting Period

Use the date range filter to select the reporting period you wish to review. If no dates are selected, the report defaults to the current tax year.

 Realised and Unrealised Gains

The tool calculates both realised and unrealised gains.

Transaction-Level Reporting

The page is organised by account first of all:

You can then view the underlying investment holdings:

And under each investment, you can drill down further and see all associated transactions on the asset:

Matching Rules

The tool applies HMRC share matching rules when calculating gains and losses, and you can see the matching rule applied to each underlying transaction within the ‘Matched’ column. Currently, matching is supported at an account and ISIN level only.

Please note:

• Matching is not applied across multiple GIA accounts holding the same asset.
• Matching is not applied across different ISINs created through corporate actions.
• Matching is not applied to off-platform accounts.

Downloading Reports

All Capital Gains data can be exported to Excel for further analysis or client reporting.

The download includes the following tabs:

• Transactions - All GIAs; Displays all transactions across the client's GIA accounts for the selected period.
• CGT Report - All GIAs; Provides a consolidated view of realised and unrealised gains across all GIA accounts, together with any applicable warnings or alerts.
• Portfolio Breakdown; Shows a detailed account-by-account and investment-by-investment breakdown of gains and losses.
• Individual Account Tabs; Separate tabs are created for each GIA account, providing account-specific reporting, including realised and unrealised gains at both investment and transaction level.

What-If Scenario Planner

The Capital Gains Tool includes a powerful What-If Scenario Planner, enabling users to model disposal strategies before executing trades.

Within the CGT page, select the three-dot menu on an account and select ‘capital gains scenario tool’:

You will be presented with a list of the client’s current investments, and you can enter either the amount or the number of units you wish to sell by using the toggle within the table heading:

You can then download the table and your simulated orders in to an excel document for review:

Raising a Target Cash Amount

The Raise Target feature allows you to calculate the disposals required to generate a specific cash amount while considering different gain strategies.

Within the scenario tool, select Raise Target:

Enter the cash amount you wish to raise, and choose whether the calculations should be based on Value raised, or Gain realised.

Example

If an investment is worth £1,000 and contains a capital gain of £200:

• Selecting Value means the full £1,000 contributes towards the target.
• Selecting Gain means only the £200 gain contributes towards the target.

Then select a disposal strategy:

• Most Units – Sells holdings with the highest number of units first.
• Least Units – Sells holdings with the fewest units first.
• Highest Total Gains – Prioritises investments with the largest capital gains.
• Lowest Total Gains – Prioritises investments with the smallest capital gains to help minimise gains realised.
• Highest % Gains – Sells investments with the highest percentage growth first.
• Lowest % Gains – Sells investments with the lowest percentage growth first.
• Proportionally across all holdings

The tool calculates the disposals required to achieve your target, displaying:

• Amount/units to be sold
• Total value raised
• Capital gain realised

Results can then be manually adjusted and downloaded into a spreadsheet if required.

Proceed to Sell

If you are ready to place the sale orders, you do not need to leave this screen and re-key all of these figures elsewhere, as you can simply click on ‘proceed to sell’:

This will take you directly in to the ‘Sell’ journey within the client’s account, and all of the values/units will be pre-filled for you (bear in mind where the system has rounded down to the nearest tradeable increment, you may wish to make some manual amendments should you wish to raise/withdraw a very specific amount):

Choose whether you wish to keep the funds as cash, withdraw to the client’s registered bank account, or reinvest (at which point you can select the funds for purchase). Then select review, and submit:

Book Costs

The system produces a notice at the top of the Capital Gains page where the client’s portfolio contains transfer activity:

And you will see a warning next to each asset which is/was involved in the transfer:

Where the client has transferred in in-specie, book costs can be added to the system; you can do this directly where the transfer is electronic, and for manual transfers we will do this on your behalf, all we need is an email to confirm the book cost values.

Book costs are used to calculate a client's growth rate, as well as the CGT liability in the case of a GIA. See this article for more information on how to update book costs:

You will find that until you add a book cost, the tool will default to £0, and the CGT calculation may not be accurate.

Alerts

Unsupported asset

This type of alert will appear because asset types other than equity or reporting funds are not supported at this stage.

Here are the assets that CGT is calculated for where no error is displayed:

• Equities
• UK fund 
• Exchange traded fund (ETF) 
• Investment trusts 

If the asset is not one of the assets above, we will not run CGT calculations and we show an error message explaining this.

Unsupported corporate action

Where a position has a transaction our CGT calculations doesn’t support, i.e. a corporate action which leads to matching across 2 ISINs, we won’t match across ISINs.

In this instance we'll show the calculated value, but with a warning message that shows the problem transactions.

Future Enhancements

The following features are being developed and will be added in future releases:

• Offshore reporting funds with a reporting status prior to 06/04/2023.
• Offshore non-reporting funds.
• ERI data for tax reporting purposes.
• Adjusted book costs to reflect excess reported income.
• Matching across separate accounts holding the same asset, or across different ISINs.

For further details, including important notes, disclaimers, warnings, and alerts, please refer to the dedicated Capital Gains Tax guidance.