Excess reportable income is one of the stranger bits of UK tax admin for investors who hold accumulation ETFs or offshore funds in a general investment account. You may have taxable income even though no cash arrived in your broker account, and that same amount may also need to be reflected in your capital gains records so it is not taxed twice.
Does ERI affect CGT base cost?
Short answer: yes, it can. ERI is normally an income-tax record first, not an SA108 capital gains entry. But HMRC says excess reported income that arose while you owned shares or units in a reporting offshore fund can be deducted when calculating the capital gain, so keep ERI records with your CGT base-cost evidence.
- Report ERI in the relevant income section if required, often SA106 for offshore funds.
- Retain fund manager or broker ERI statements for each reporting period.
- When you sell, use taxed ERI records to support the CGT cost-basis adjustment.
Official context: HMRC's HS265 offshore funds helpsheet and the Investment Funds Manual.
Quick FAQ on ERI and CGT base cost
Does ERI affect CGT base cost?
Yes, it can. If excess reported income arose while you owned the reporting offshore fund units, HMRC guidance allows it to be deducted when calculating the capital gain.
Do I report ERI on SA108?
Usually no. ERI is normally income reporting first, often on the Foreign Pages (SA106), while SA108 is for capital gains and losses. The ERI record still matters for SA108 support because it may affect the gain when units are sold.
What record should I keep?
Keep the fund manager or broker ERI statement, the number of units held at the reporting date, the fund distribution date, and evidence of any income already reported. Those records support the later cost-basis adjustment.
What ERI means
In everyday investor discussions, ERI usually means "excess reportable income". HMRC's offshore funds helpsheet uses the phrase "excess reported income". The idea is the same: a reporting offshore fund reports income to UK investors, and some of that income may not have been paid out as a cash distribution.
HMRC's HS265 offshore funds helpsheet says UK investors are taxed on their full share of reportable income from a reporting offshore fund, even where it has not been distributed. This is why an accumulation ETF held outside an ISA or SIPP can create Self Assessment work even without a cash dividend.
Where ERI appears on Self Assessment
ERI is usually reported as income, not as a capital gain. HMRC says income from a reporting offshore fund, including excess reported income, should be returned on the Foreign Pages (SA106) in the relevant category. Depending on the fund, that could be foreign dividends, foreign interest, property income, or another income category.
If you do not know which category applies, use the fund manager or broker statement as the source. For many equity ETFs the income is treated as dividend income, while bond or money-market funds may be different.
When ERI is treated as received
ERI is not normally reported on the date you personally notice it in a broker statement. HMRC explains that excess reported income is treated as received on the fund distribution date, which is usually six months after the last day of the fund's reporting period.
That timing matters because it determines which tax year the income belongs to. If the fund manager has not issued the report before your filing deadline, HMRC says you may need to use a best estimate and amend later when the report becomes available.
How ERI affects capital gains
ERI can also matter when you eventually sell the ETF or fund. HMRC's HS265 guidance says any excess reported income that arose while you owned the shares or units can be deducted when calculating the capital gain. The point is to avoid taxing the same amount once as income and again as capital growth.
In practical record-keeping terms, many investors treat ERI that has been reported as income as an adjustment to the holding's CGT base cost. You should keep the ERI records with your broker exports, especially if you use Section 104 pooling across several years.
What if the fund is not a reporting fund?
Be careful with non-reporting offshore funds. HMRC's offshore funds guidance says gains on disposal of a non-reporting offshore fund may be taxed as offshore income gains rather than normal capital gains. FiscalFox is built for ordinary share, fund, and ETF CGT calculations. If you are unsure whether a fund has UK reporting status throughout your holding period, check the fund manager's documents or ask a tax adviser.
Broker documents and common traps
Broker tax packs are useful, but they do not all present ERI in the same way. Some platforms include a consolidated tax certificate or ERI schedule; others leave you to look up fund-level reporting data. This is why the same ETF can feel simple inside an ISA and unexpectedly fiddly in a taxable account.
- Inside an ISA or SIPP, ERI normally does not create a personal Self Assessment entry.
- In a general investment account, ERI may need income reporting even when no cash was paid.
- When you sell, keep ERI records because they can affect the capital gain calculation.
- Do not mix ISA trades into your taxable CGT calculation.
Where FiscalFox fits
FiscalFox checks the ISINs you import for offshore reporting funds. Where verified issuer reports are available for every required period, it calculates the taxable fund income and the matching CGT allowable-cost addition automatically. It never treats a fund it cannot verify as having zero ERI.
Automatic ERI calculation is available for supported funds, with initial verified coverage for the Vanguard FTSE All-World UCITS ETF USD Accumulating share class (VWRP). FiscalFox reconstructs units at the fund reporting date, retains the issuer report and FX evidence, and adds the same amount to the CGT allowable cost. Coverage is expanding; if a fund is not yet supported, FiscalFox flags that limitation instead of presenting an assumed figure.
Either way the report covers the CGT calculation: disposals, allowable costs, the same-day rule, the 30-day rule, and Section 104 pooling. It produces support figures for the SA108 capital gains pages.
The downloadable Offshore Fund Income schedule keeps ERI separate from capital gains figures and links each amount to its issuer source. Confirm the applicable Self Assessment income entry before filing, especially where a fund is not classified as an equity fund.
Frequently asked questions
Does ERI affect CGT base cost?
Yes, it can. HMRC HS265 says excess reported income that arose while you owned shares or units in a reporting offshore fund can be deducted when calculating the capital gain, which prevents the same amount being taxed twice.
What is ERI on an accumulation ETF?
ERI usually means excess reportable income or excess reported income. It is income from an offshore reporting fund that may be taxable for UK investors even when the fund does not pay the amount out in cash.
Do I report ERI on SA108?
ERI is normally an income-tax item, not a capital gains entry. HMRC guidance says income from a reporting offshore fund, including excess reported income, should generally be returned on the Foreign Pages (SA106) in the relevant income category.
Does ERI affect capital gains tax?
Yes, it can. HMRC guidance says excess reported income that arose while you owned shares or units in a reporting offshore fund can be deducted when calculating the capital gain, helping avoid double tax on the same amount.
Does FiscalFox calculate ERI?
Yes, for supported funds. FiscalFox uses the ISINs in your broker export, verified issuer reports and retained FX evidence to calculate ERI and the matching CGT allowable-cost addition. Initial verified automatic coverage is VWRP; if a fund or reporting period is not supported, FiscalFox flags the limitation rather than treating missing data as zero.
Official UK tax references
This guide is checked against published GOV.UK and HMRC material. FiscalFox is a calculation tool, not personal tax advice; review unusual transactions with a qualified adviser.