A share represents a portion of ownership in a company. When you buy shares, you become a shareholder and gain an economic interest in that business.
Investors generally aim to make money from shares in two ways:
- Capital growth: The share price increases and the shares are later sold for more than the original purchase price.
- Dividends: Some companies distribute part of their profits to shareholders, although dividends are never guaranteed.
Owning shares does not mean you control the day-to-day operation of a company. Certain shares may carry voting rights, but these rights depend on the company’s share structure and the particular class of shares held. It is therefore incorrect to assume that every share always carries the same voting entitlement.
The value of shares can also fall. Investors may receive less than they originally invested, and in extreme circumstances a shareholding can lose most or all of its value.
How Can I Buy Shares in the UK?
Most people in the UK buy shares through an online investment platform or stockbroker. Rather than going directly to a stock exchange and purchasing shares yourself, the broker provides access to the market and processes your orders.
For example, shares in many major British companies are traded on the London Stock Exchange. Individual investors usually access the market through brokers, including execution-only services where the investor makes their own investment decisions. The London Stock Exchange’s broker directory provides details of member-firm brokers offering different levels of service.
The basic process involves opening an investment account, depositing money, choosing the shares you want to purchase and placing an order through the platform.
How Do You Buy Shares Online Step by Step?
Buying shares online has become relatively straightforward, but choosing an investment should involve more than simply selecting a company whose name you recognise.
1. Decide How Much You Can Afford to Invest
Start by considering how much money you can realistically invest without affecting essential spending, bills or emergency savings.
Share prices can move significantly over short periods, so money that may be needed soon is generally unsuitable for taking significant investment risk.
Investing should normally be approached with a longer-term perspective rather than as a way of making guaranteed short-term profits.
2. Choose an Investment Platform or Stockbroker
A broker or investment platform acts as the link between you and the market.
Before opening an account, compare factors such as:
- Share-dealing charges
- Platform or account fees
- Foreign-exchange charges
- Available UK and international shares
- Minimum investment requirements
- Customer support
- Research tools
- Account types
- Withdrawal charges or restrictions
Price is important, but it should not be the only consideration. Security, regulation and the range of investments available also matter.
3. Check That the Provider Is Legitimate
Before transferring money to an investment business, verify that you are dealing with the genuine company and that it has appropriate regulatory permissions.
The FCA Firm Checker allows consumers to check whether a financial services firm is authorised and has permission to provide particular products or services. Compare the firm’s name, reference number and contact information carefully rather than relying on a link sent through an unsolicited email or message.
Be especially cautious when someone:
- Promises guaranteed investment returns
- Pressures you to invest immediately
- Contacts you unexpectedly
- Requests payment into an unusual bank account
- Claims that an opportunity is available for only a few hours
- Encourages you to ignore normal regulatory checks
Being authorised does not mean that an investment cannot lose value. Regulation and investment performance are separate issues.
4. Choose Your Investment Account
Two common options for UK investors are a General Investment Account and a Stocks and Shares ISA.
A General Investment Account allows you to hold investments without the specific tax advantages of an ISA. Taxes may become relevant depending on your gains, dividends and personal circumstances.
A Stocks and Shares ISA is a tax-efficient investment wrapper. For the 2026/27 tax year, the overall ISA allowance is £20,000. Investments held within an ISA can generally grow without UK Capital Gains Tax, while dividend income within the ISA is generally sheltered from UK dividend tax.
However, an ISA does not protect an investor against falling share prices. The investments held inside it can still rise or fall in value.
5. Open and Verify Your Account
Once you have selected a provider, you will normally need to complete an application.
Providers may request:
- Full name
- Date of birth
- UK address
- National Insurance number
- Bank account information
- Identification documents
These checks help the provider confirm your identity and meet its regulatory obligations.
6. Deposit Money
After the account is opened, money can normally be transferred from your linked bank account.
Avoid feeling that deposited money must immediately be invested. It is better to research an investment properly than to buy simply because funds are available in the account.
7. Find the Shares You Want to Buy
Investment platforms normally provide a search function where you can find a company using its name or ticker symbol.
Check carefully that you have selected the correct security, particularly when companies have similar names or multiple share classes.
You should also establish which market and currency the shares trade in. Buying overseas shares can introduce foreign-exchange fees and currency risk.
8. Decide How Much to Invest
Some platforms require investors to buy whole shares, while others support fractional shares for certain investments.
If a company’s share price is £50 and you want five shares, the investment value would be approximately £250 before applicable charges.
Avoid concentrating all available investment money in one company simply because you feel confident about its prospects. A single company can experience financial, operational or regulatory problems regardless of the wider market.
9. Place the Order
When buying a share, you may be offered different types of orders.
A market order generally seeks to complete the purchase at the best available price, although the final execution price can differ from the price displayed when the order is submitted.
A limit order allows you to specify the maximum price you are prepared to pay. The order will only execute if the required price becomes available, so completion is not guaranteed.
Review the company, quantity, estimated value and charges carefully before confirming the order.
10. Monitor the Investment
Buying the shares is not the end of the process.
Investors should continue following information that could materially affect the company, including:
- Financial results
- Profit warnings
- Regulatory announcements
- Major acquisitions
- Changes in debt
- Dividend announcements
- Changes in management
- Industry developments
Avoid reacting to every small movement in the share price. Focus on whether the reasons for owning the investment have materially changed.
Should You Use a Stocks and Shares ISA or General Investment Account?
Both account types can be used to hold investments, but their tax treatment differs.
| Feature | Stocks and Shares ISA | General Investment Account |
| UK tax advantages | Yes | Generally no ISA protection |
| Annual ISA allowance | £20,000 overall for 2026/27 | No equivalent ISA contribution allowance |
| Capital Gains Tax on investments held inside | Generally no | May apply |
| UK dividend tax on investments held inside | Generally no | May apply |
| Investment availability | Depends on provider | Depends on provider |
| Investment risk | Depends on investments selected | Depends on investments selected |
For someone investing for the long term, the tax treatment of an ISA can be valuable. However, suitability depends on individual circumstances and the investments available through the chosen provider.
How Much Does It Cost to Buy Shares?
The price of the shares themselves is only one possible cost.
Dealing Fees
Some platforms charge a fixed amount each time you buy or sell a share. Others offer commission-free dealing but may generate revenue through other charges.
Platform Fees
A provider may charge an ongoing fee for maintaining your account or holding investments. The calculation may be based on a percentage of the portfolio or a fixed amount.
Foreign-Exchange Fees
Buying US or other overseas shares usually requires converting pounds into another currency. The foreign-exchange charge can materially affect the overall cost, particularly when investing smaller amounts frequently.
Bid-Offer Spread
There can be a difference between the price at which investors can buy a share and the price at which they can sell it. This difference is known as the bid-offer spread.
Stamp Duty Reserve Tax
UK share purchases can also involve tax. When shares are bought electronically, Stamp Duty Reserve Tax is generally charged at 0.5% on applicable transactions. Different rules and exemptions can apply, so the UK rules for tax when buying shares should be considered alongside the broker’s own charges.
Understanding the full cost of investing is important because charges reduce investment returns.
How Should You Research a Company Before Buying Shares?
Buying shares based solely on a company’s popularity or recent price performance can expose an investor to unnecessary risk.
Start by examining what the company does and how it makes money.
Revenue and Profit
Look at whether revenue and profits have been growing, falling or fluctuating over several years.
One unusually strong year does not automatically mean the business is performing well over the long term.
Debt
Debt can help companies expand, but excessive borrowing can become difficult to manage when interest costs rise or earnings decline.
Check whether the company appears capable of meeting its financial obligations.
Cash Flow
A profitable company can still experience difficulties if it does not generate enough cash.
Cash-flow statements can therefore provide important information that headline profit figures do not reveal.
Competitive Position
Consider why customers choose the company rather than its competitors.
Strong brands, technology, intellectual property, scale or customer loyalty can provide advantages, but these can weaken over time.
Valuation
A successful business is not automatically a good investment at any price.
Ratios such as price-to-earnings can help provide context, although no single valuation measure should be used in isolation.
Dividends
If income is important to you, review the company’s dividend history and whether its profits and cash generation appear capable of supporting future payments.
Dividends can be reduced, suspended or cancelled.
Company Announcements
Publicly traded companies release important information to investors. Financial results, acquisitions, leadership changes and profit warnings can all materially alter an investment case.
Past share-price performance should never be treated as a guarantee of future returns.
What Are the Risks of Buying Individual Shares?
All investments involve risk, and individual shares can be particularly volatile.
You Can Lose Money
If the share price falls below the amount you paid, your investment will be worth less. If a company fails, shareholders can potentially lose their entire investment.
Company-Specific Risk
A company may suffer from poor management, declining demand, excessive debt, regulatory problems, litigation or stronger competition.
These problems can affect one company even while the wider stock market performs well.
Market Risk
Economic recessions, interest-rate changes, political events and changes in investor sentiment can cause large parts of the stock market to fall.
Concentration Risk
Holding a large proportion of your money in a single company means that one company’s problems can have a significant effect on your overall portfolio.
Diversification across different companies, sectors, regions or asset types can reduce dependence on one investment, although it cannot eliminate losses.
Currency Risk
If a UK investor buys shares priced in dollars, euros or another currency, exchange-rate movements can increase or reduce returns when the investment is converted back into pounds.
Fraud Risk
Fraudsters may promote nonexistent investments or impersonate genuine financial businesses. Regulatory checks and independent verification are particularly important before transferring money.
Is It Better to Buy Individual Shares or Investment Funds?
Neither option is automatically better for every investor.
Individual Shares
Buying individual shares allows you to decide exactly which companies you own.
Advantages can include:
- Greater control over investment selection
- Ability to focus on companies you understand
- Direct exposure to a company’s performance
- Potential dividend income
However, individual shares can create significant concentration risk if your portfolio contains only a small number of companies.
Investment Funds
A fund pools investors’ money and invests it across a collection of assets.
Depending on the fund, this may include dozens, hundreds or even thousands of companies.
This can make diversification easier, although funds still fluctuate in value and may charge ongoing fees.
Beginners should understand both approaches before deciding how concentrated or diversified they want their investments to be.
Can You Buy Shares Without a Broker?
For most UK retail investors buying ordinary exchange-listed shares, a broker or investment platform is the normal route to the market.
You cannot simply walk into the London Stock Exchange and purchase shares directly from another investor.
Certain companies or schemes may provide other arrangements for acquiring shares, while employee share schemes and some private-company transactions operate differently. However, these should not be confused with normal retail stock-market dealing.
Even Direct Market Access services that allow investors greater control over how orders reach an exchange are generally provided through brokers.
How Do I Sell Shares?
If your shares are held through an online investment platform, selling them will normally involve using the same account.
The process generally involves:
- Signing in to your investment account.
- Selecting the shares you want to sell.
- Choosing the sell option.
- Entering the number of shares or value you want to sell.
- Selecting the appropriate order type.
- Reviewing the available price and charges.
- Confirming the order.
After the trade completes, settlement normally needs to take place before the proceeds are fully available for withdrawal.
Selling a share does not necessarily mean withdrawing the money from the investment account. The cash can often remain in the account until you decide what to do with it.
What Taxes Can Apply When Buying and Selling Shares?
Tax treatment depends on what you buy, the account you use and your individual circumstances.
Stamp Duty and SDRT
A 0.5% charge commonly applies when purchasing eligible UK shares, including SDRT on many electronic purchases. Some securities and transactions are exempt.
Capital Gains Tax
Capital Gains Tax may apply when shares held outside a tax-advantaged account are sold for a profit.
For the 2026/27 tax year, the individual Capital Gains Tax annual exempt amount is £3,000. Tax is generally considered on overall taxable gains rather than simply on the total amount received when shares are sold.
Dividend Tax
Dividends received from shares outside an ISA may also be taxable once relevant allowances are taken into account.
The dividend allowance remains £500 for 2026/27. Dividend tax rates from 6 April 2026 are 10.75% at the ordinary rate, 35.75% at the upper rate and 39.35% at the additional rate.
Tax rules can change, and individual circumstances differ, so investors with complex situations may need professional tax advice.
How Can I Check If an Investment Platform Is Legitimate?
Do not assume that an investment platform is genuine because its website looks professional.
Before opening an account:
- Search for the firm’s regulatory details independently.
- Confirm its exact business name.
- Compare its contact details with official records.
- Check what financial services it has permission to provide.
- Avoid using links provided through suspicious messages.
- Search for regulatory warnings.
- Be cautious about guaranteed or unusually high returns.
- Do not transfer investment money because of pressure from an unsolicited caller.
Clone firms are particularly dangerous because fraudsters may copy the name, branding or regulatory details of a genuine company while providing different contact information.
Always confirm that the website, telephone details and other contact information belong to the genuine regulated firm before sending money.
What Happens If I Decide Not to Buy Shares?
There is normally no financial penalty simply because you decide not to buy shares.
If you research an investment and choose not to proceed, your money simply remains uninvested unless your account provider has separate charges associated with holding cash or maintaining the account.
What can change is the market price. A share that costs £20 today could be worth £25 or £15 at a later date. Waiting therefore creates the possibility of missing a price increase, but it can also mean avoiding a decline.
This is different from being charged for not investing.
Fear of missing out should not be the main reason to purchase a share. If you do not understand an investment, cannot tolerate the potential loss or have not completed sufficient research, deciding not to invest can be a reasonable choice.
Conclusion
Buying shares in the UK is generally done through an investment platform or stockbroker rather than by approaching a stock exchange directly.
Before investing, compare providers, understand their charges and confirm that the firm you are dealing with is legitimate. Choosing between a Stocks and Shares ISA and a General Investment Account can also affect how investments are taxed.
The company itself deserves just as much attention as the platform used to buy it. Review its finances, debt, competitive position, valuation and major risks rather than relying on recent share-price movements or recommendations from other people.
Most importantly, remember that shares can fall as well as rise. There is no guaranteed return, and diversification can help reduce dependence on the performance of a single company.
This article provides general information and does not constitute personal financial, investment or tax advice.
Frequently Asked Questions
Can I Buy Just One Share in the UK?
Yes. If a broker allows whole-share purchases, you can generally buy a single share provided you have enough money to cover its price and any applicable charges. Some platforms also offer fractional shares for certain companies, allowing investors to purchase less than one complete share.
How Much Money Do I Need to Start Buying Shares?
There is no universal minimum amount. It depends on the platform, the price of the investment and whether fractional shares are available. However, investors should consider dealing, platform and foreign-exchange charges because these can have a proportionally larger effect on very small investments.
Can Beginners Buy Shares Online?
Yes. Online investment platforms make it possible for beginners to buy and sell shares, but ease of access does not reduce investment risk. Beginners should understand the company, potential losses, charges and account structure before investing.
Can I Buy Shares Without Using a Broker?
Most UK retail investors buying listed shares use a broker or investment platform to access the stock market. Direct arrangements can exist in specific circumstances, but buying shares directly from an exchange without an intermediary is not the normal process for an individual investor.
Can I Lose All My Money When Buying Shares?
Yes, it is possible. If a company fails and its shares become worthless, shareholders can lose their entire investment. Diversification can reduce reliance on one company but cannot guarantee against overall investment losses.
Do I Pay Tax When Buying UK Shares?
Many electronic purchases of chargeable UK shares are subject to 0.5% Stamp Duty Reserve Tax. Different rules and exemptions can apply depending on the investment and transaction. Taxes may also become relevant later if you receive dividends or sell shares at a gain outside tax-advantaged accounts.
Can I Buy US Shares From the UK?
Yes. Many UK investment platforms provide access to companies listed in the United States. Investors should check foreign-exchange fees, dealing costs, tax documentation and currency risk before purchasing. A rise in the US share price does not necessarily produce the same percentage return in pounds because movements in the pound-dollar exchange rate can affect the final result.