How I’d invest £20,000 in a Stocks and Shares ISA in March to aim for a million

March is the last chance for UK investors to use the Stocks and Shares ISA allowance this year. I think if someone uses their full allowance every year for 30 years, becoming a millionaire is a realistic goal.

Building a £1m portfolio over 30 years using an annual deposit of £20,000 includes earning a 4% annual return for each of those years. Despite the FTSE 100 This year is more expensive than ever, I think that is still achievable.

Dividends

One way to become an ISA millionaire is by investing in dividend stocks. These are shares in a company that distribute a portion of its earnings to shareholders.

Using this approach, I can reinvest the money I receive to buy more shares, increasing future dividends. And I can keep doing this until I reach a million.

The easiest way to do this is to buy stocks that give returns above 4% today and hope that the business will continue to pay in the future. With this approach, I would buy stocks Legal & General.

At current prices, the stock yields an 8% dividend. As long as the company’s payout doesn’t drop significantly, I should hit my target.

Growth

Instead of increasing the value of my portfolio by buying more stocks, I can also look to buy stocks that will increase in value. This includes investing in growth stocks.

Stocks in growth companies rise in value as the business retains earnings and reinvests them to generate more cash in the future. As a result, stock prices should rise.

If I were to take this approach, I would buy the stock Halma. It pays dividends, but the real value comes from the growth of the business.

Over the last decade, the company has grown earnings per share by an average of 10% per year. If I can continue, I can reach my goal after 30 years.

Aim for a million

There are different strategies I can try. But there’s no rule that says I have to stick to just one.

When I invest, I try to focus on whatever I think is the best opportunity. Sometimes they are dividend stocks and sometimes they are growth stocks.

Doing this allowed me to develop a diversified investment portfolio. By concentrating on whatever I thought was the best opportunity at the time, I would eventually have a diverse collection of investments.

If I had invested £20,000 in March, I would have bought shares diploma. The stock has yielded a dividend of around 2%, but the real attraction is the growth stock.

Diploma income has grown by an average of 13% per year over the last decade. And the size of the company means I can continue for a while, helping me reach my million pound target.

Please note that tax treatment depends on the individual circumstances of each client and may change in the future. The content in this article is provided for informational purposes only. It is not intended to be, nor does it become, any form of tax advice. Readers are responsible for conducting their own due diligence and seeking professional advice before making any investment decisions.