I asked ChatGPT to design the ultimate passive income ISA and it suggested…

I wanted more passive income from my ISA, so I asked ChatGPT to build the ideal portfolio – the results were not what I expected.

| More on:

The content of this article was relevant at the time of publishing. Circumstances change continuously and caution should therefore be exercised when relying upon any content contained within this article.

You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn More.

Tŵr Mawr lighthouse (meaning "great tower" in Welsh), on Ynys Llanddwyn on Anglesey, Wales, marks the western entrance to the Menai Strait.

Image source: Getty Images

With all the recent talk about the Cash ISA limit being cut to £12,000, I wondered what I should do to protect my tax-free benefits.

So, I asked ChatGPT for advice. Its first suggestion? Keep a Cash ISA just for easy-access money, since passive income from it is minimal – and instead focus on building a Stocks and Shares ISA.

Please note that tax treatment depends on the individual circumstances of each client and may be subject to change in future. The content in this article is provided for information purposes only. It is not intended to be, neither does it constitute, any form of tax advice. Readers are responsible for carrying out their own due diligence and for obtaining professional advice before making any investment decisions.

Blended portfolio

ChatGPT suggested putting 50% of my ISA into UK dividend ETFs, which currently yield around 4%. Its preferred options were the iShares UK Dividend UCITS ETF and the Vanguard FTSE UK Equity Income ETF.

On the individual stock side, its top dividend picks were Diageo (4%), BP (5.2%), HSBC (4.5%), Shell (3.8%) and National Grid (5%) – all large, mature businesses with long dividend histories.

It also advised allocating 15% of the portfolio to bonds and REITs for stability and diversification. Here, it highlighted the iShares UK Gilts ETF and the iShares UK Property UCITS ETF.

Diversification

The AI bot might label this a highly “diversified” portfolio – but I wouldn’t.

For a start, many of its individual stock picks are already core constituents of the ETFs, and most sit within their top 10 holdings. That means far less diversification than it appears on the surface.

Secondly, I’m not convinced that UK gilts provide the diversification they once did. With debt-to-GDP around 100%, I’d much rather hold assets that tend to retain value, such as gold and silver mining stocks.

Thirdly, none of the suggestions leaned into high-income stocks. If a Cash ISA yields 4%, why would I take equity risk for little or no additional reward?

High yielders

Personally, I generally prefer dividend stocks over pure growth plays. They fit my risk tolerance far better, and I get the added bonus of twice-yearly payouts that I reinvest each year – a simple habit that steadily builds compound wealth over time.

Most investors underestimate compounding, yet it’s the same principle Warren Buffett has used for more than half a century.

One stock I continue to hold in my ISA is Legal & General (LSE: LGEN). Unlike its peer Aviva, the share price has largely stagnated, keeping the dividend yield elevated at around 8.7%.

The shares have struggled because the company hasn’t generated positive free cash flow for the last two years. Last year alone saw cash outflows of more than £4bn. At the same time, its biggest profit driver, pension risk transfer, has faced rising competition, pressuring margins.

Long-term play

Despite recent challenges, I still have confidence in the stock for one key reason. The dividend is supported by core operating earnings, even if the headline figures look messy.

Put simply, the cash-generating parts of the business continue to fund the payout. In 2024, the dividend was covered 1.42 times, comfortably clear of what I’d consider a danger zone.

Legal & General also remains one of the best-known names in UK financial services, with long experience in asset management, workplace pensions and retirement planning. Its scale lets it secure big pension and investment mandates that smaller firms simply can’t compete for, giving it a steady stream of business.

For anyone tracking long-term income trends, the company’s ability to keep generating cash is a theme worth watching.

Andrew Mackie has positions in Aviva Plc and Legal & General Group Plc. The Motley Fool UK has no position in any of the shares mentioned. Views expressed on the companies mentioned in this article are those of the writer and therefore may differ from the official recommendations we make in our subscription services such as Share Advisor, Hidden Winners and Pro. Here at The Motley Fool we believe that considering a diverse range of insights makes us better investors.

More on Investing Articles

Workers at Whiting refinery, US
Investing Articles

Why is everyone selling BP shares?

BP shares have been some of the most sold in the last week. What's going on here? And could this…

Read more »

DIVIDEND YIELD text written on a notebook with chart
Investing Articles

Is this market correction a once-in-a-decade chance to buy ultra-high-yield income stocks?

As share prices fall, dividend yields rise. The FTSE 100 is full of top income stocks and Harvey Jones says…

Read more »

This way, That way, The other way - pointing in different directions
Investing Articles

Down 25% in a month! Are these the 3 best stocks to buy in today’s correction… or the worst?

Harvey Jones examines whether the best stocks to buy today can all be found in the FTSE 100 sector that…

Read more »

Young mixed-race couple sat on the beach looking out over the sea
Investing Articles

This FTSE small-cap stock can surge 105%, says one broker

Ben McPoland highlights a FTSE small-cap share that's trading cheaply and offering a dividend for the first time since 2019.

Read more »

A mature adult sitting by a fireplace in a living room at home. She is wearing a yellow cardigan and spectacles.
Investing Articles

£10,000 invested in ultra-high yield Legal & General shares on 5 April last year is now worth…

Investors typically buy Legal & General shares for the dividend income, as they now yield more than 8.5%. But will…

Read more »

Modern apartments on both side of river Irwell passing through Manchester city centre, UK.
Investing Articles

With an empty ISA today, how long would it take to aim for a million?

Is it realistic to aim for a million with an empty ISA? Our writer turns from fantasy to facts to…

Read more »

Burst your bubble thumbtack and balloon background
Investing Articles

What on earth’s going on with the Helium One share price?

The Helium One share price rally has stalled. Our writer reflects on the reasons and asks whether now could be…

Read more »

Female student sitting at the steps and using laptop
Investing Articles

Getting started with investing? Here are 3 UK stocks to take a look at

The next time the stock market opens, it will be the new financial year. And Stephen Wright has three UK…

Read more »