We have some exciting news to share! The Motley Fool UK has now become The Twelfth Magpie -- an independent, UK-owned company, led by our long-serving UK management team — Mark Rogers, Chris Nials and Heather Adlington. In practical terms, it’s the same team you know, now fully focused on serving our UK readers and members.

Just as importantly, our approach remains unchanged: long-term, jargon-free, and on your side. This site is our new home, and there will be extra tweaks made across the coming few days as we settle in. So if anything looks a little off, please bear with us!

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.

How I’d use my ISA to target a £5k annual second income

How easy, or hard, is it to build a good second income for our retirement? I do some sums to find just out what might be in reach.

Close-up of British bank notes

Image source: Getty Images

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.

We’re into a new ISA year, and that means we have a whole new allowance to put towards building a second income.

The UK state pension is worth less and less as time goes on. And that means we need to do as much as we can to help pay for our lives when we take off our work boots for the last time.

XXX

People seek a passive income in many ways. But for me, it has to be shares in UK companies. Over the past hundred years and more, UK shares have beaten all other investments that I could really go for.

ISA savings

Now, I don’t have £20,000 to put into my Stocks and Shares ISA each year. But I want to use as much as I can, to earn that extra cash for when I retire. So let’s go with an annual income that I think could make a nice difference to me.

I’d say £5,000 per year is a fair sum to start with. And then maybe I’ll see what else I might manage. An extra five grand a year could pay for some very nice holidays.

So, how do I plan to get there? First, I need to think how much I might hope to earn from UK shares.

Dividend stocks

I mostly buy dividend stocks, and I’ll stick with those. So what could I earn? Well, I tend to go for 6% per year when I do sums like this. Some FTSE 100 stocks pay more than that, while some pay very little.

But if I aim for good dividends that are well covered by earnings, I think that’s a good goal. And I see a lot of stocks out there with yields like that and more.

This is just a “What if?” thing, though, to help me get some idea of what I might manage. And I’m not making any actual predictions here.

Build a pot

So, working on a 6% income, to earn £5,000 per year I’d need a bit over £83,000. That’s not so much that it scares me into giving up, not by a long way. But how might I get there?

Let’s say I have 15 years before I want to stop work. And I’ll work on the same goal of 6% per year from dividends.

In the 15 years I have, I’d need to put away £300 per month. My £5,000 per year is £417 per month. So I could invest less per month now, while I’m working, and earn more after I stop. I like that.

Saving more

If I can lift it to £500 per month, I could have £144,000 in 15 years. And then that could pay me £8,640 per year as a second income.

This is all at today’s prices, and doesn’t look at any share price rises. And over the long term, UK shares have gained almost 5% per year above inflation, on average.

Now, I really don’t think they’ll beat this year’s inflation. But for the long term, that looks good to me.

Views expressed 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

Friends and sisters exploring the outdoors together in Cornwall. They are standing with their arms around each other at the coast.
Investing Articles

£503 buys 14 shares in this FTSE 250 stock that returned 23.9% annually for the last 15 years

This FTSE 250 stock has averaged a huge return for 15 years. At today's price, £503 buys 14 shares. But…

Read more »

Black woman using loudspeaker to be heard
Investing Articles

£1,000 buys 25 shares in this FTSE 100 stock that’s returned 29.2% annually for the last 10 years

This FTSE 100 mining stock has returned close to 30% a year for a decade. At 3,995p, £1,000 buys 25…

Read more »

Female student sitting at the steps and using laptop
Investing Articles

Down 47%, is this growth stock finally worth buying in May?

With a £288m order book and a hidden pipeline of defence and nuclear contracts, is this growth stock now too…

Read more »

House models and one with REIT - standing for real estate investment trust - written on it.
Investing Articles

2 REITs yielding 7%+ to consider for passive income in 2026

A REIT backed by the NHS and another backed by Tesco and Sainsbury's with both yielding 7%+. Here's why I'm…

Read more »

Woman riding her old fashioned bicycle along the Beach Esplanade at Aberdeen, Scotland.
Investing Articles

Just 97 shares of this UK dividend stock generate £238 in passive income

A 5.7% yield, £238 in passive income from just 97 shares, and one of the most divisive dividend stocks on…

Read more »

ISA coins
Investing Articles

£10,000 in an ISA generates a second income of…

The London Stock Exchange is home to some of the world's most generous dividends. But how big a second income…

Read more »

Shot of a senior man drinking coffee and looking thoughtfully out of a window
Investing Articles

Expert recommendations: 2 top income stocks yielding 7%+!

With yields of 7.2% and 7.8% respectively, these two income stocks are catching the eyes of institutional analysts. Should investors…

Read more »

Illustration of flames over a black background
Investing Articles

3 top income-focused stocks to buy in May 2026, according to experts

Looking for a stock to buy for income in May 2026? Experts have flagged these three UK dividend shares as…

Read more »