Should You Hold Investments Inside Your Corporation?
Pros, Cons & Tax Traps
Investments

If your corporation has built up retained earnings, you might be wondering:

Should I invest this money inside the company — or pull it out personally?

It’s a smart question. But like most tax planning strategies, the answer depends on your goals.

Let’s unpack the advantages, the risks, and the tax traps business owners should understand in 2026.

Why Business Owners Consider Corporate Investing

Keeping investments inside your corporation can:

• Defer personal tax
• Allow more capital to compound
• Avoid immediate dividend withdrawals
• Provide flexibility for future planning

When funds stay inside the company, you’re investing pre-personal-tax dollars, which means more money working for you upfront.

Sounds great, right? Not so fast.

The Passive Income Rules

Canada introduced rules to prevent corporations from becoming “investment vehicles.”

Here’s the key number:

If your corporation earns more than $50,000 in passive investment income annually, your access to the small business deduction (SBD) starts to shrink.

At $150,000 of passive income, the small business deduction is eliminated.

This can increase your corporate tax rate significantly.

The Tax Rate Reality

Passive investment income inside a corporation is taxed at a higher rate (often around 50% initially), but part of that tax is refundable when dividends are paid out.

It’s called the Refundable Dividend Tax on Hand (RDTOH) mechanism.

It works — but it complicates planning.

Pros of Corporate Investing

• Tax deferral opportunity
• Larger initial investment pool
• Flexibility in dividend timing
• Estate planning advantages
• Potential integration benefits

Cons and Risks

• Reduced small business deduction
• Complex tracking requirements
• Potential OAS clawback if poorly structured
• Increased compliance costs
• Changes in tax policy risk

Corporate investing isn’t passive in administration — it requires oversight.

When It Makes Sense

Corporate investing may make sense if:

• You’ve already maximized RRSP and TFSA room
• You don’t need the funds personally
• You’re building long-term wealth
• Your operating income is stable
• Passive income will remain under $50,000 annually

When It May Not Make Sense

It may not be ideal if:

• You need personal cash flow
• You’re near the $50,000 passive threshold
• You plan to sell your business soon
• Simplicity is a priority

Final Word

Holding investments inside your corporation can be powerful — but it’s not automatic “free tax savings.”

Strategic modelling matters. One small oversight can undo the advantage.

Planning first, investing second — that’s the smarter order.

The information in this article is general in nature. We recommend that you discuss your situation with an advisor, as everyone’s situation is unique.