Introduction

Reaching $1 million in corporate retained earnings is a significant milestone for an incorporated professional. It represents years of disciplined accumulation — paying tax at the small business rate, retaining the balance, and investing it inside the corporation. It is also the point at which certain planning actions become urgent, not merely useful.

This article describes the specific decisions that matter at the $1 million threshold — and what happens if they are deferred.

The Passive Income Problem at $1 Million

A $1 million corporate investment portfolio generating a 5% return produces $50,000 of annual investment income — exactly the adjusted aggregate investment income (AAII) threshold at which the small business deduction begins to be reduced. Each additional $1 of AAII above $50,000 reduces the SBD available by $5 — meaning $10,000 of additional passive income above the threshold eliminates $50,000 of SBD-eligible active income.

At a 6% return, the $1 million portfolio generates $60,000 of passive income — the SBD is reduced on the full excess above $50,000. At 7% — a modest long-term equity portfolio return — passive income is $70,000, and the SBD is reduced by $100,000 of active income eligibility.

A professional earning $400,000 of active income who has lost $100,000 of SBD eligibility now pays the general rate on $100,000 — an additional corporate tax of approximately $14,300 per year.

The Urgent Holdco Action

The solution to the passive income problem at this scale is the holdco — a separate holding company that receives excess retained earnings from the operating corporation through inter-corporate dividends, holds the investment portfolio, and keeps the operating corporation's passive income below the AAII threshold.

By transferring accumulated investments to the holdco, the operating corporation retains a smaller investment portfolio — generating less passive income — while the holdco accumulates wealth separately.

The inter-corporate dividend from the operating corporation to the holdco is generally tax-free for connected corporations under section 112. This makes the transfer mechanism clean — the money moves between entities without triggering personal tax.

At $1 million in the operating corporation, the holdco transfer should already have happened. If it has not, beginning the holdco plan now prevents the SBD erosion from compounding further each year.

The Investment Allocation Decision

Inside the holdco, the investment portfolio can be allocated differently from inside the operating corporation. The holdco is a long-term investment vehicle — it does not need the same liquidity as the operating corporation. This allows a higher-equity allocation in the holdco (better long-term returns but higher year-to-year volatility) while the operating corporation retains a more liquid, lower-volatility portfolio.

The holdco's passive income is also subject to the high corporate passive rate — approximately 50.17% — with RDTOH accumulating. But because the holdco's passive income does not affect the operating corporation's SBD, the holdco can accumulate freely without the SBD erosion penalty.

The Retirement Horizon View

For a professional with $1 million in retained earnings and a 15–20 year horizon before retirement, the compounding effect of the holdco separation is significant:

Operating corporation: $150,000–$200,000 added per year, invested conservatively, below the AAII threshold.

Holdco: $1 million at incorporation, compounding at equity returns for 15–20 years, with the passive income taxed at the corporate passive rate.

At 6% annual compounding over 20 years, the $1 million holdco portfolio grows to approximately $3.2 million before any additional transfers. At that point, the retirement drawdown from the holdco — CDA first, then eligible dividends, then non-eligible dividends — is a twenty-year income stream.

The Registered Account Interaction

At $1 million in corporate retained earnings, the professional likely also has a meaningful RRSP balance — perhaps $400,000–$600,000. The retirement income plan integrates both:

RRIF minimum withdrawals from the RRSP/RRIF (mandatory from age 71, or earlier if strategic)

Holdco distributions (managed to the OAS clawback threshold)

Operating corporation dividends (phased over the years remaining before wind-up)

CPP and OAS (timing decision)

The sequence and amount of each source should be modelled together — not managed as three separate income streams.

When to Speak With a CPA

At $1 million in corporate retained earnings, the holdco conversation should be happening now. The CPA engagement at this stage includes: setting up the holdco (if not already in place), modelling the transfer of investment assets to the holdco, reviewing the passive income calculation for the current year, and beginning the retirement income model.

Rotaru CPA works with incorporated professionals at the $1 million retained earnings threshold and beyond. Book a consultation to review your corporate structure and retirement plan.