If you’re wondering how to invest in the stock market for beginners in the UK, you’re not alone. Whenever the words “investing” or “stock market” are mentioned, it often brings a dismissive shrug from most people. Investing isn’t for me – it’s only for the traders on Wall Street. This article will show you that it doesn’t have to be like that. Here, I’ll teach you all that I’ve learned about building wealth and investing in the stock market over the years.
Investing in the stock market is exactly what you should be doing with any spare money you have. You just need to make sure it’s spent on the right investments. Ensure you are buying assets (something that goes up in value) and not liabilities (something that goes down in value). The world of investing is complicated, so it’s no surprise that even considering how to invest is a very daunting task for most people.
Recommended reading – The Intelligent Investor by Benjamin Graham
I can’t cover every facet of investing and the stock market in one blog. People devote their entire lives to the subject. I can recommend a few books though. The Intelligent Investor by Benjamin Graham was first written in 1949, and is considered by many to be the Bible on value investing. The principles Graham teaches are timeless and very much still relevant today. It’s not a book I’d recommend for beginners though, as at 640 pages, it’s long and is also very technical at times – often (in my opinion) making it quite difficult to follow. But maybe that’s just me and my short attention span!
It’s still worth a read – although I’d suggest taking notes!
Recommended reading – The Simple Path to Wealth by JL Collins
However, I very much can recommend The Simple Path to Wealth by JL Collins. In my opinion, this is the most elegant book on personal finance and investing ever written. It’s aimed at beginners who don’t want to know all the fine details of investing, but who do want to build a prosperous financial future for themselves. I highly recommend you read the book!
JL Collins’ principles are simple and work surprisingly well: spend less than you earn, invest the surplus, avoid debt. Do these three simple things throughout your life, and you’ll wind up doing better financially than 95% of people.
I only read The Simple Path to Wealth recently (August 2025), but it turns out I’ve been following the principles laid out in the book since the beginning. One thing to understand is that building wealth through investing is not just as simple as buying good investments. Of course you want to get a good return on your investments, but ultimately, the more money you can invest, the greater your outright returns will be.
So you also want to focus on increasing your income and holding on to as much of it as possible. The keys are to stay out of debt (although not all debt is “bad” – mortgages and student loans can be exceptions), live below your means (spend less than you earn) and invest the difference in low-cost index funds which track the global stock market.
It really is quite simple!
How to build wealth before you invest
Stay out of debt
Avoid debt like the plague – it is something you want to stay a long, long way from – especially consumer debt (i.e. credit card debt, car loans). There is simply no reason why you should get into debt over these (usually superficial) things. They are almost always “wants” rather than “needs”, and so should not make up a big part of your spending.
For example, if you’re just out of university/ college, you absolutely should not be driving around in a fancy new car. You should be cycling or driving an old car, and resist splashing your money on the weekends as much as possible! Of course you can do these things occasionally, but only within your means (i.e. what you can afford).
Good vs bad debt
If you ever take out a loan, you do so with the knowledge and intention that you must pay it back in full, with interest. So don’t go getting yourself in a huge amount of debt to end up in a career where the pay is poor. Do your research before you take out a student loan, and don’t make the assumption that you’ll never pay it off because you’ll never earn enough to pay it back – and it’ll eventually get written off anyway. This shows a depressing lack of aspiration!
Mortgages are a difficult beast. In the UK, homes are very expensive. The ratio of the average price of a home to the average wage is about as high as it’s ever been. So, houses are unaffordable for most people.
I don’t personally have any set-in stone rules about what percentage of your income you should spend on mortgage repayments. Everyone has a different financial situation, with constantly evolving financial needs and a financial future to consider too.
My advice: don’t overstretch your budget during the first few years of home ownership. What would happen if you or your partner lost their job? Would you be able to afford the repayments now, and if so for how long? As your career(s) advance, your income will likely increase and so you’ll probably feel more financially secure after the mortgage payment. Just don’t stretch the mortgage too far!
Live below your means
If you’re not spending all of the money that you receive every month, then you are living below your means. However, you can improve this situation by aiming to save a certain proportion of your income every month.
If you can save at least 30% of your income, you’ve got a good foundation. Ideally – and this is what I aim for – you should save 50%. It’s possible to have an even higher savings rate if you’re a high earner and keep costs low – similarly, it’s more difficult to save a big proportion of your income if you’re a low earner. Living a more intentional life by deliberately buying less stuff can really help achieve these savings goals.
Income from your career will generally rise over time, sometimes significantly. So the likelihood is that the longer you spend working, the higher your income and greater your potential savings rate. If you can learn to negotiate better pay rises, or have the confidence to leave a job for a better-paying alternative, you can improve your savings rate even further!
Avoid lifestyle inflation
This is where keeping costs low comes into play. Avoid lifestyle inflation. Live like a student for as long as you can, and only allow small improvements to your lifestyle on occasion. It’s all very well having a high-paying job, but if you have an expensive lifestyle as well, you will still be broke.
Essentially, the more money you can save, the better. You’ll have more to put into appreciating assets (investments), and less being spent on liabilities like a car, house, expensive holidays, fancy restaurants etc. Save as much as you can.
How to invest successfully in the stock market for UK beginners
Disclaimer – I am NOT offering investment advice here, simply outlining the strategy which works for me.
Investing in the stock market doesn’t have to be complicated (although the world’s banks and financial services sector like to make you think it is). Instead of worrying about which individual stocks to buy and sell every week (which takes up a lot of time and effort), I do something much simpler: I buy shares in the entire global stock market. Historically, the stock market has risen over long periods, despite short-term volatility (by an average of about 9% per year).
This is great news, because we don’t really need to worry about what the market is doing at the moment. Historically, over periods of 10+ years, the global stock market has tended to be higher despite short-term crashes and volatility. At this point, you’ve probably realised something important – successful investing is not a get-rich quick scheme. It’s a long term game that you need to be patient with. This form of investing is very boring, and you should not be checking your portfolio every day – once a month at most!
Timing the market
Timing the market involves buying and selling at points when you think the market is “low” (undervalued) and “high” (overvalued). You shouldn’t bother – most people can’t do this consistently. Instead, you should just continue to buy into it every month, and ride the gradually ascending market rollercoaster all the way to the top. Time in the market beats timing the market.
Time in the market
Because leaving your investments untouched for a long period of time is likely to lead to better results than attempting to time the market, it pays to start your investing journey early in life. If you can start investing in the stock market in your 20s, then you’ll be at a massive advantage later in life vs someone who started 5 or 10 years later.
As the old saying goes: “The best time to plant a tree was 20 years ago. The second best time is now.” The same goes for investing – it doesn’t matter how old you are, just start. Any time at all invested in the market is likely to give you some returns.
Investing in the stock market for beginners in the UK is about simplicity. Time in the market beats timing the market. Every time. Just start investing and be consistent.
My investing routine
I typically buy the Vanguard FTSE All-World UCITS ETF, occasionally dabbling with the Vanguard S&P 500 UCITS ETF as well. That’s it. It’s a very simple investment portfolio that works well over the long term; just keep buying and hold forever.
(For US readers, the equivalent funds are the Vanguard Total World Stock ETF and the Vanguard S&P 500 ETF.)
- I make sure my investments are on “autopilot”. I invest a certain amount by direct debit with Vanguard every month.
- I invest money from my paycheck before I have a chance to spend it. I “pay myself first”.
- In the UK, you can do this efficiently through a Stocks and Shares ISA, which allows investments to grow tax-free.
- I use Vanguard because they have the lowest fees of any provider. Fees eat into your gains over time, and can be a significant factor in limiting your wealth building.
- I maintain discipline and avoid the temptation of selling when the markets drop. Restraining myself from looking at my portfolio (and financial news in general), really helps with this.
FAQ
For most beginners, the best strategy is a simple, long-term approach using low-cost, globally diversified index funds within a Stocks and Shares ISA. This provides broad exposure to the global economy while minimising fees and complexity. The key is consistency – investing regularly over time and allowing compounding to do the heavy lifting.
Both approaches can work well, but they serve different purposes. Lump sum investing typically produces higher returns over the long term, as your money is exposed to the market sooner. However, monthly investing (pound-cost averaging) reduces timing risk and helps build discipline, making it a more comfortable option for most beginners.
There’s no perfect number, but I suggest you should aim to invest 50% of your income (after tax). This forces you to live well below your means and installs the financial discipline that will help you build wealth over the long-term. The most important factor is consistency; regularly pound-cost averaging into the stock market each month.
Common mistakes include trying to time the market, picking individual stocks without experience, paying high fees, and reacting emotionally to market volatility. Many beginners also invest without a clear plan. A simple, low-cost strategy held over the long term will outperform most attempts to outsmart the market.
Yes. A global index fund provides instant diversification across thousands of companies and multiple countries, reducing risk compared to individual stocks. Combined with regular contributions and a long-term mindset, it forms a strong foundation for building wealth without unnecessary complexity or constant decision-making.
In conclusion…
Anyone can implement these methods; the difficulty is in maintaining consistency with your investing over a long period of time. Being a successful investor is more about discipline and controlling your emotions rather than being able to choose the right investments.
What do you think about my investing approach? Let me know in the comments below!
Want to find out more? You might be interested in the following posts:
- A Millionaire is made £3.50 at a time
- Simple Ways to Save Money
- Live a simple life and save a ton of money
- Is cycling cheaper than driving in the UK?
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