How much passive income could a £500 monthly investment in a Stocks and Shares ISA achieve?

When opening a Stocks and Shares ISA, new traders usually ask me a easy query: how much could this really make?

The sincere reply depends upon time, consistency, and return charges. However one factor is obvious — the ISA itself provides you a highly effective head begin.

Any capital good points and dividends earned inside an ISA are utterly tax-free. No income tax. No capital good points tax. Meaning extra of your returns keep invested and compound over time.

As Vanguard founder John Bogle as soon as stated:

“Time is your good friend; impulse is your enemy.”

And nowhere is that extra apparent than with long-term ISA investing. So what occurs when you put that into apply?

Please word that tax therapy depends upon the person circumstances of every shopper and could also be topic to vary in future. The content material in this text is offered for info functions solely. It isn’t meant to be, neither does it represent, any type of tax recommendation. Readers are chargeable for finishing up their very own due diligence and for acquiring skilled recommendation earlier than making any investment selections.

Calculating potential income

Over the 10-year interval between 2016 and 2026, the Vanguard FTSE 100 ETF achieved a complete return of 143% (with dividends included). That equates to an annualised return of 9.3% per 12 months.

If it maintained related efficiency over the subsequent decade, a £500 monthly investment would compound to £99,678 by 2036.

In different phrases, a complete invested quantity of simply £60,000 would ship £39,678 of passive income.

That’s already a beneficial return, but when held for a additional 10 years, it could skyrocket to £350,146. At that time, the returns would have considerably outpaced the £120,000 invested.

This illustrates the facility of beginning early and compounding the investment for so long as potential.

However whereas an index-tracking ETF is a good method to seize broad market progress, particular person inventory choosing can obtain even larger returns.

Which shares ship probably the most passive income?

Dividend shares are sometimes the go-to for passive income. However chasing the very best yield can backfire. Firms providing yields above 7% usually wrestle to maintain them.

Frequent dangers embrace:

• Weak earnings failing to cowl dividends.
• Excessive debt ranges squeezing money stream.
• Sudden dividend cuts throughout downturns.

A yield round 5%–7% tends to be extra sustainable.

Have a look at Hilton Meals Group (LSE: HFG), for instance.

It’s not the primary identify that pops into many individuals’s heads when eager about dividend income. 

But it surely gives a respectable 6.5% yield backed by a stable 20-year monitor file. Its money stream covers dividends by 2.93 instances and earnings solely account for 65.4% of payouts.

So what’s the catch?

Just lately, a sharp revenue dip irked traders, resulting in a 38% value drop in 2025. However an aggressive enterprise overhaul has seen the appointment of a new CEO and a refocus on its core meat enterprise.

Subsequently, income jumped 11.9% in H2 2025 to £4.2bn and it managed to extend dividends by 1.4%.

With the longer term now trying extra promising, the low value could be a wonderful alternative for worth hunters.

The group’s price-to-earnings progress (PEG) ratio is a pretty 0.46, so the value could nonetheless rally as soon as the market realises the expansion potential.

The underside line

Hilton actually has potential and I believe it’s a good income inventory to think about, however nothing is risk-free. A restoration isn’t assured and margins in meals manufacturing could be tight.

So whereas the income seems interesting, traders want to remain real looking.

When concentrating on passive income, a Stocks and Shares ISA is a good begin. Nevertheless, it have to be mixed with disciplined saving and a rigorously curated portfolio of confirmed income shares.

Mark Hartley has no positions in the shares talked about. The Twelfth Magpie has no place in any of the shares talked about. Views expressed on the businesses talked about in this text are these of the author and due to this fact might differ from the official suggestions we make in our subscription providers akin to Share Advisor and Hidden Winners.