DON'T Invest Your Corporate Money Until You Read This (Canadian CPA) (Corporation vs TFSA vs RRSP)

Where Should You Invest Your Money as a Business Owner in Canada? (Corporation vs TFSA vs RRSP)

If you’re a business owner, this question comes up fast: “Should I invest inside my corporation, or take the money out and invest personally?” And like most tax questions, the real answer is: It depends. But there is a framework you can use to make the decision properly. As a CPA in Ottawa, the mistake I keep seeing (especially online) are all similar. Like i f you go on Reddit or YouTube, you’ll see this advice everywhere: “Leave money in your corporation. It’s taxed less.”

That’s only half true. Yes, your active business income is taxed low in a corporation (around 12% in Ontario).

But once you start investing that money inside the corporation, the rules change completely.

Reddit threads are actually pretty good at spotting patterns. They’re right that corporations allow tax deferral, and you can invest more upfront. But they miss that the tax eventually catches up, and integration removes most of the long-term advantage.

Most accountants stop at: “Here’s your tax return” sign here please and thanks! But the real question is: What should you actually do with your money? That’s where planning with a CPA in Ottawa matters.

Step 1 Understand what happens inside the corporation

Let’s keep it simple. You earn business income → you pay ~12% corporate tax → you keep the rest inside the company.

So far, so good. But then you invest it. Now the CRA treats that income differently.

Step 2 Investment income is taxed at ~50%

Interest, dividends, and passive income inside a corporation are taxed at roughly ~50% (Ontario CCPC) This is not a mistake. It’s intentional. The CRA designed the system this way.

Why does the CRA do this?

Because otherwise, every high-income person would:

• earn income in a corporation
• never take it out
• invest forever at low tax rates

The government doesn’t want that. So they created a system where: You don’t get a permanent tax advantage by investing inside a corporation

Step 3 The part most people miss (refund mechanism)

This is where things get confusing. When your corporation pays that ~50% tax, part of it is refundable later.

This is called RDTOH (Refundable Dividend Tax on Hand). In simple terms:

• You pay high tax upfront
• When you pay yourself a dividend
• The corporation gets some of that tax back

What does that mean in real numbers?

Let’s say your corporation earns:

• $10,000 of interest income

You pay about:

• $5,200 in corporate tax

But then:

• You pay yourself a dividend
• The corporation gets ~30% refunded

So your real tax ends up closer to ~20–25%

CRA’s actual intent (important)

The system is designed so that: You end up in a similar position as if you earned the income personally

This is called tax integration. If you want to go deeper, CRA explains this concept in their materials on refundable taxes and dividend refunds.

Is investing in a corporation useless?

No. But the benefit is not what people think.

The real advantage: tax deferral

The main benefit of using a corporation is:

You delay personal tax

Example:

• You earn $100,000
• Pay ~12% corporate tax
• Invest the remaining $88,000

If you had taken it personally:

• You might only invest $55,000–$60,000 after tax

So you’re investing more upfront. That’s the advantage.

Where TFSA and RRSP come in

This is where I see a big gap, especially with younger clients.

A lot of my clients from YouTube and TikTok:

• make good money ($250K–$500K+)
• run corporations
• have almost no RRSP
• barely use their TFSA
• Never even heard of FHSA

They go straight to corporate investing because that’s what they heard online.

Let’s simplify the comparison

FHSA

• Deduction going in
• No tax on growth
• No tax on withdrawal (when you buy your first house)
• Transferrable to your RRSP (if you don't buy a house)

TFSA

• No tax going in
• No tax on growth
• No tax on withdrawal

Best account available. Full stop.

RRSP

• Deduction today
• Tax later

Good if: you’re in a high tax bracket, or you expect lower income later

Corporation

• Low tax on business income
• High tax on investment income (with refund later)
• Mainly a deferral tool

Quick rule of thumb

If you still have TFSA room: Use your TFSA first

If you’re in a high bracket: Consider RRSP

Then: Use the corporation for deferral and flexibility

Final takeaway

• Corporate investing is not a tax loophole
• It’s a timing strategy
• TFSA is still the best account
• RRSP is situational
• The right mix depends on your income and goals

If you want help with this

Every situation is different.

I usually walk clients through:

• corporate vs personal investing
• dividend vs salary strategy
• TFSA / RRSP optimization

If you want a clear plan, you can book a call.

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This is not legally binding tax advice. This is educational analysis. Say hello if you need help.

hello@taxesmadesimple.ca

WhatsApp - 613.600.4194

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