How to add ERI to your trades data
You can use the ERI Lookup page with your trade data to find the notional ERI payments on your shares.
You are supposed to declare these notional payments as distributions each year to HMRC, usually they are treated as dividends.
You can also deduct these payments from any gain you make when you sell the shares (to avoid double taxation).
The ERI page now contains an ERI data section at the bottom which lists the Dividend payments in a table form showing DIVIDEND, reporting date, expected holding qty on that date and total ERI in £ that was notionally paid on that date.
If you want to include these ERI payments in your tax return calculations, simply paste this ERI data table into the UKCGT calculator trades list and hit Calculate again.
You also need to declare ERI as foreign dividends. Often this is under £500 each year, so you will pay no dividend tax but when you sell the ETFs, you can add all the ERI amounts for all years into the cost and thus reduce your CGT.
Most people try to avoid buying accumulating ETFs held in their GIA (unless they know the ERI is always 0).
Some ERI reporting data for some ETFs for some brokers is impossible to find! Some providers only make available the previous year's ERI numbers, so you need to keep a record every year so you can add in all the ERI notional payments onto the share cost.
If you are a basic rate tax payer and don't include ERI you may be paying more tax than you need to (dividend rate is lower than CGT rate). If you are a higher rate tax payer, you may not be paying enough tax (dividend rate is higher than CGT rate).