Maximum TFSA Impact: 2 TSX Stocks to Help Multiply Your Wealth

A Tax-Free Savings Account (TFSA) can be your savings vault that can unlock a million-dollar treasure for which you don’t have to pay any tax. If you study the benefits the Canada Revenue Agency (CRA) offers through a TFSA, you can unlock its true potential and multiply your wealth.

Maximum TFSA impact

For starters, you contribute the after-tax income to the TFSA, which means no immediate tax deductions. The primary tax benefit of a TFSA comes from the wealth you accumulate through investments.

Right now, Celestica (TSX:CLS) has become the poster stock of Canada’s tech landscape. It has landed deals with big guns like Google and Advanced Micro Devices. All these clients are pouring billions of dollars into artificial intelligence (AI) infrastructure. Having three hyperscaler clients means millions in revenue.

If you’d invested $10,000 in this stock in January 2025 when the stock was trading at $137, that amount would now be $38,076. The $28,076 capital gain is tax-free in a TFSA.

StockShare Price in January 2025Share Price in May 2026$10,000 Investment is nowNumber of SharesCelestica$137.00$521.60$38,076.8073Topicus.com$127.33$88.93$7,025.4779

Can Celestica stock multiply your wealth now?

Celestica is now an original design manufacturer (ODM) operating in the communications, cloud, and data centre space. It also caters to industrial, aerospace, and defence segments. It makes Ethernet switches for AI data centres. The company’s revenue increased by 53% year over year in the first quarter of 2026. It is now expecting the revenue to grow 49% year over year in the second quarter of 2026. Like Nvidia, Celestica could see multiple growth cycles, sustaining its share price.

No company is without risks. Celestica is not immune. It is building design centres in Texas, Thailand, Malaysia, and Mexico. If the AI bubble bursts or the hyperscaler investments cool, Celestica could see the end of the growth cycle. Foxconn, Micron Technology, and TSMC all experience such growth cycles.

The key is to diversify revenue streams and reduce reliance on a single customer. For instance, consider the April 27, 2026, price drop of 15%. The stock dipped over a rumour that Google is shifting its tensor processing unit (TPU) assembly to another manufacturer. Companies denied the rumour, and the stock jumped. It gives you a sense of the risk. So, while Celestica can grow your wealth, do not hesitate to offload the stock if it loses any major cloud and communications client.

Can Topicus.com multiply your wealth now?

Topicus.com (TSXV:TOI) stock has only dipped since July 2025. The reason was the exit of Mark Leonard, founder of Topicus.com’s parent company, Constellation Software. A management change is huge, but when a founder exits, it is even bigger, especially in the investing space.

First, he stepped down as president in September 2025 but remained the board chairman. Now, he will not stand for re-election in May 2026 and will work in an advisory role. He left when the company was at its peak and self-sustaining. Leonard, along with his family, remains a significant shareholder of the company. The business model of compounding he built is still yielding returns and is now being managed by Mark Miller, the long-time chief operating officer of Constellation, who worked alongside Mark Leonard.

Topicus.com continues to acquire vertical-specific software companies for their sticky cash flow. While the threat of AI replacing traditional software looms, vertical-specific software (VSS) companies keep earning revenue.

Topicus.com’s free cash flow increased 2% to €165.4 million. The company has completed its major acquisition of Asseco, and the first half of 2026 could go into integrating and impairing assets. As of the first quarter of 2026, its revenue surged 23% while net income fell 21% year over year. However, its value will start reflecting in the second half as Asseco revenue trickles to the bottom line.

The post Maximum TFSA Impact: 2 TSX Stocks to Help Multiply Your Wealth appeared first on The Motley Fool Canada.

Should you invest $1,000 in Celestica right now?

Before you buy stock in Celestica, consider this:

The Motley Fool Canada team has identified what they believe are the top 10 TSX stocks for 2026… and Celestica wasn’t one of them. The 10 stocks that made the cut could potentially produce monster returns in the coming years.

Consider MercadoLibre, which we first recommended on January 8, 2014 … if you invested $1,000 in the “eBay of Latin America” at the time of our recommendation, you’d have over $18,000!*

Now, it’s worth noting Stock Advisor Canada’s total average return is 94%* – a market-crushing outperformance compared to 85%* for the S&P/TSX Composite Index. Don’t miss out on our top 10 stocks, available when you join our mailing list!

Get the 10 stocks instantly #start_btn6 { background: #0e6d04 none repeat scroll 0 0; color: #fff; font-size: 1.2em; font-family: 'Montserrat', sans-serif; font-weight: 600; height: auto; line-height: 1.2em; margin: 30px 0; max-width: 350px; text-align: center; width: auto; box-shadow: 0 1px 0 rgba(0, 0, 0, 0.5), 0 1px 0 #fff inset, 0 0 2px rgba(0, 0, 0, 0.2); border-radius: 5px; } #start_btn6 a { color: #fff; display: block; padding: 20px; padding-right:1em; padding-left:1em; } #start_btn6 a:hover { background: #FFE300 none repeat scroll 0 0; color: #000; } @media (max-width: 480px) { div#start_btn6 { font-size:1.1em; max-width: 320px;} } margin_bottom_5 { margin-bottom:5px; } margin_top_10 { margin-top:10px; }

* Returns as of April 20th, 2026

More reading

• Top Canadian Stocks to Buy Right Away With $2,000
• A Perfect TFSA Pair for 2026: 2 Stocks I’d Buy Now
• How Your 2026 TFSA Contribution Could Eventually Reach $280,000 or More
• 3 Stocks for Canada’s $9 Billion AI Bet
• 2 Canadian Crypto Stocks I’d Avoid (and 1 I’d Buy Instead)

The Motley Fool has positions in and recommends Topicus.com. The Motley Fool recommends Advanced Micro Devices, Alphabet, Celestica, Constellation Software, Micron Technology, Nvidia, and Taiwan Semiconductor Manufacturing. The Motley Fool has a disclosure policy. Fool contributor Puja Tayal has no position in any of the stocks mentioned.