Jasmine Birtles
Your money-making expert. Financial journalist, TV and radio personality.

You’ve found a fund you like, you’re ready to buy, and then you spot two versions of it: one ending in “Acc” and one ending in “Inc”. Which do you pick? Don’t worry, this trips up almost every new investor, and the answer is simpler than the jargon suggests. This guide explains accumulation vs income funds, shows how each works, and helps you choose.
Both versions hold exactly the same investments. The only difference is what happens to the income the fund earns, such as dividends (cash payments from companies to their shareholders). With an accumulation fund, that income is automatically reinvested back into the fund.
With an income fund, it’s paid out to you as cash. Fidelity UK puts it simply: the underlying investments are the same.
An accumulation fund (often shown as “Acc”, “accumulation” or sometimes “capitalising”) reinvests all its income for you. You don’t receive any payments. Instead, the fund’s value, or unit price, rises to reflect the reinvested income. Over time, you earn returns on your returns, which is called compounding. Think of it as a snowball rolling downhill, picking up more snow as it goes.
Accumulation funds suit long-term investors who don’t need an income now, such as someone saving for retirement who is still working, or anyone building a pot inside a Stocks and Shares ISA.
An income fund (shown as “Inc”, “Dis” or “distributing”) pays out the income it earns, typically monthly, quarterly or twice a year. You can take it as cash into your bank account, or leave it as cash in your ISA, pension or investment account to reinvest yourself later. Because the money is paid out rather than automatically reinvested, your pot grows more slowly unless you reinvest it.
Income funds suit people who want regular payments, such as retirees topping up their spending. They also suit investors who prefer to decide when and where to reinvest.
| Accumulation (Acc) | Income (Inc / Dis) | |
|---|---|---|
| What happens to income? | Reinvested automatically | Paid out as cash |
| Regular payments? | No | Yes (monthly, quarterly or twice a year) |
| Best for | Long-term growth, compounding | Regular income, such as retirement |
| Effort needed | Low: it’s automatic | Higher: you decide what to do with each payment |
| Fund price over time | Rises faster as income is reinvested | Rises more slowly as income is paid out |
Imagine you invest £10,000 in a fund that makes 6% a year in total, made up of 4% from share price growth and 2% from dividends. This is a made-up illustration, not a prediction. After 20 years, the accumulation version, with everything reinvested, would be worth about £32,100 (£10,000 growing at 6% a year).
The income version’s fund value would be around £21,900, but you’d also have received roughly 2% of its value in cash every year along the way. If you spent that cash, you’d have less in the pot. If you reinvested it yourself, you’d end up in a similar place to the accumulation fund. That’s the key insight: accumulation simply does the reinvesting for you.
This is where beginners often get caught out, so here’s the key point. Inside a Stocks and Shares ISA or a pension, tax usually doesn’t come into the choice, because your income and growth are sheltered from UK tax. Pick whichever suits your goals.
Outside an ISA or pension (in a general investment account), the income counts for tax whether it’s paid out or reinvested. According to GOV.UK, for the 2026/27 tax year you get a £500 dividend allowance, and dividend income above that is taxed at 10.75% for basic-rate taxpayers, 35.75% for higher-rate and 39.35% for additional-rate.
That means an accumulation fund can still create a tax bill on income you never received as cash. Tax rules can change and depend on your circumstances, so check with HMRC or a tax adviser if you’re unsure.
Want to go deeper on the strategy behind this choice? See our guide to income investing vs growth investing.
Look at the fund name. Accumulation versions usually include “Acc”, “Accumulation” or “Growth”, while income versions often include “Inc”, “Dis” or “Income”.
Many ETFs and funds come in both versions, and they’ll have different codes, so double-check before you buy. Our A-Z of investing terms is handy if other labels confuse you.
Is accumulation better than income? Neither is “better”. They suit different goals. Accumulation is more convenient for growth, and income suits those needing regular cash.
Are the fees different? Charges are often the same, but not always, so compare the ongoing charge for each version.
Can I switch from one to the other? Often yes, but selling can have tax consequences outside an ISA or pension, and platforms may charge dealing fees.
Disclaimer: This article is for informational and educational purposes only and is not regulated financial or tax advice. Investing involves risk, investments can go down as well as up, and you could get back less than you put in. The worked example is illustrative only. Tax figures are from GOV.UK for the 2026/27 tax year and may change. Do your own research or speak to a regulated financial adviser.
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