Tax-efficient corporate investing and insurance

Every investment and insurance choice inside a corporation changes the tax it pays. The same 6% return can leave very different amounts in the corporation depending on whether it arrives as interest, dividends or capital gains, and whether it is taxed this year or later. I compare those choices for you after tax and in writing, so you and your accountant can see the difference in dollars.

I don't prepare tax returns or give tax opinions. Your accountant decides salary and dividends, prepares the filings and gives the tax advice. My part is the investments and the insurance, and how each one shows up on the corporation's tax return.

Where investment choices change the tax bill

The type of income. Inside a corporation, interest is taxed in full at the investment income rate, about 50% in Québec for 2026. Only half of a realized capital gain is taxable, and the other half goes into the capital dividend account, which can be paid out to shareholders tax-free. Dividends from Canadian companies are taxed differently again. Two portfolios with the same return can leave the corporation with very different amounts.

The passive income threshold. Once the corporation earns more than $50,000 of investment income in a year, the small business deduction on its active business income starts to shrink the following year, and it is gone at $150,000. Interest counts in full toward that threshold, half of a realized capital gain counts, and a gain you haven't realized doesn't count yet. The SBD grind article walks through the numbers.

Timing. Tax deferred is money that keeps compounding inside the corporation. Some funds pay out most of their return as taxable income every year; others pay out little and let gains build until you sell. Inside a corporation that difference compounds for decades. How I compare funds on this, after fees and after tax, is on how I compare investment funds and insurers.

Where insurance changes it

Growth inside a permanent life insurance policy that meets the tax-exempt test isn't taxed each year and isn't counted toward the $50,000 passive income threshold. At death, the death benefit minus the policy's adjusted cost basis is added to the capital dividend account and can be paid to the shareholders tax-free.

That makes a corporate-owned policy one way to fund the tax your estate will owe and to move money out of the corporation to your family. Whether it beats investing the same dollars depends on your age, your health, the time horizon and the returns you assume. The invest or insure comparison shows both paths side by side.

What stays with your accountant and lawyer

The mix of salary and dividends, when to pay dividends to recover refundable tax, estate freezes, trusts and the corporate structure itself are decisions for your accountant and, where needed, your lawyer or notary. I bring them the investment and insurance side in writing, so the decision is made with the whole picture.

Illustrative example

A Québec corporation earns $100,000 of investment income in one year. Figures use 2026 Québec corporate rates and are illustrative only: they show corporate tax in the year the income is earned, before any personal tax when money is paid out.

• As interest: about $50,200 of corporate tax, of which about $30,700 is refundable later when taxable dividends are paid. All $100,000 counts toward the passive income threshold, which is $50,000 over, so the next year's business limit for the small business deduction shrinks by $250,000.
• As a realized capital gain: $50,000 is taxable, for about $25,100 of corporate tax, about $15,300 of it refundable later. The other $50,000 goes into the capital dividend account and can be paid out tax-free. $50,000 counts toward the threshold, so there is no reduction.
• As a gain not yet realized: no tax this year and nothing counted toward the threshold. Tax applies when the investment is sold.

Assumptions: a Canadian-controlled private corporation in Québec, 2026 rates (38.67% federal and 11.5% Québec on investment income, 30.67% refundable), a 50% capital gains inclusion rate. The right mix for your corporation depends on its numbers and is decided with your accountant. Current rates are on the tax rates page.

How it works

1. A 30-minute first call. We look at what the corporation holds and what you want the money to do.
2. A review of the numbers. The investment income on your corporation's tax return shows what the portfolio is costing in tax today. Here is where to find it on the T2.
3. Options in writing. Investment only, insurance only, or a combination, with the same capital and the same time horizon, after fees and after tax, for you and your accountant.
4. Reviews. The investments are reviewed every six months, and the plan again whenever the rules or your situation change.

Important Notes

Mutual funds are offered through WhiteHaven Securities Inc. Insurance products and certain other services are provided through iAssure Inc., an independent firm in the insurance of persons and in the group insurance of persons. These activities are neither the business nor the responsibility of WhiteHaven Securities Inc.

This is educational content only. Tax rules are complex and change often, and the right choice depends on your corporation's situation. Tax advice and filings come from your accountant; legal structures from your lawyer or notary.

Fact-Check & Sources

• CRA: Corporation Income Tax Rates
• CRA: Small Business Deduction
• CRA: Capital Gains
• Revenu Québec: Corporation Income Tax