Beyond the RRSP: the Individual Pension Plan for incorporated professionals

Why? The contribution room is capped, the deduction lands on your personal return rather than your corporation's, and the shelter it provides shrinks in relevance precisely as your income and retained earnings grow. There is a better-fitted instrument designed for exactly your situation: the Individual Pension Plan, or IPP. Often called a "bigger, better RRSP," it's one of the most powerful — and most underused — retirement and tax-planning vehicles available to incorporated professionals in Canada. Here's what it is, and why, for the right candidate, it can substantially outperform the RRSP.

What an Individual Pension Plan actually is

An IPP is a registered, defined-benefit pension plan sponsored by your corporation for the benefit of you, its owner-employee. Where an RRSP is a defined-contribution arrangement — you put money in and your retirement income depends entirely on how the investments perform — an IPP works in reverse. It defines the pension you are entitled to receive at retirement, and an actuary calculates each year how much your corporation must contribute to fund that promise.

That single structural difference is the source of nearly every advantage that follows. Because the target is a generous, predetermined pension benefit, the contributions required to reach it are calculated from your age, your salary history, and your years of service — not capped by a flat annual ceiling.

The IPP is designed for owner-managers and incorporated professionals who earn T4 salary from their corporation and who own at least 10% of its shares — a category that describes most incorporated physicians and dentists. The plan is registered with the Canada Revenue Agency and must conform to the Income Tax Act and applicable provincial pension rules.

The core advantage: contribution room that grows with you

The RRSP dollar limit for 2026 is $33,810, and that figure is the ceiling no matter how much you earn above the threshold. The IPP imposes no such flat cap. Instead it uses the most generous benefit formula permitted under the Income Tax Act, and contributions are determined by the cost of funding your defined pension.

The practical consequence is that around age 40, IPP and RRSP contribution limits are roughly comparable — but the gap widens quickly and decisively from there. The older you are, the more your corporation must contribute to fund the same promised pension, and so the more it is permitted to deduct. For a physician in their late forties, fifties, or sixties, the annual deductible contribution can exceed the RRSP maximum by a wide margin, and the additional tax-sheltered growth compounds over the remaining working years.

This is why the IPP is often described as a tool that lets you accumulate meaningfully more retirement capital than an RRSP could — for higher-income incorporated owners with a long runway, the difference in final balances can run well into the hundreds of thousands of dollars.

Past-service funding: the one-time catch-up

One of the IPP's most compelling features is the ability to recognize and fund past service — the years you have already worked and drawn salary, going as far back as 1991. When the plan is established, an actuary can calculate a substantial lump-sum contribution to account for those prior years of pensionable service.

For an incorporated professional who has been drawing a T4 salary for a decade or more, this can translate into a large, one-time, fully tax-deductible corporate contribution at setup — a single deduction that can dwarf years of RRSP room. It is, in effect, a chance to retroactively pension-fund a career.

Every dollar is a corporate deduction

With an RRSP, your contribution reduces your personal taxable income. With an IPP, contributions are made by — and deducted against — your corporation. For an incorporated professional, this is exactly where the deduction is most valuable: it shelters retained earnings, reduces corporate tax, and moves capital out of the corporation and into a protected, tax-deferred pension.

The administrative and actuarial fees required to run the plan are likewise deductible business expenses. And unlike investments held as passive assets inside your corporation, assets inside the IPP can be rebalanced freely without triggering tax, and they don't add to the passive-income problem that can grind down your corporation's access to the small-business deduction.

Built-in protection against poor markets

Because the IPP guarantees a defined benefit, it assumes a prescribed rate of return — typically 7.5% — when calculating required funding. If your plan's investments underperform that assumption, your corporation is permitted to make additional deductible top-up contributions to make up the shortfall. As you approach retirement, further "terminal funding" contributions may also be available to enhance the pension.

Secondary benefits worth noting

Several additional features make the IPP attractive as part of a broader estate and exit plan. Pension income from an IPP can be split with a spouse after age 65, creating retirement-income flexibility. Family members who draw salary from the corporation can sometimes be added as plan members. And as a registered pension plan with assets held in trust outside the corporation, an IPP generally offers strong creditor protection — a meaningful consideration for professionals who carry liability exposure.

An honest look at the trade-offs

The IPP is a powerful tool, but it isn't the right answer for everyone, and credibility requires saying so plainly.

It carries real costs. Establishing an IPP typically runs in the range of $3,000 to $6,000 in actuarial and legal fees, with ongoing annual administration of roughly $2,000 to $4,000. Those fees are deductible, but they only make sense at a sufficient scale of contribution.

It also requires commitment and the right compensation structure. An IPP is funded by T4 salary, so it works only if you draw a meaningful salary from your corporation rather than relying solely on dividends — and that decision carries its own payroll and CPP implications. Once the plan promises a benefit, contributions become a funding obligation, so your corporation needs reliable cash flow. The funds are generally locked in until retirement, offering far less liquidity than an RRSP. And participating in an IPP reduces your future RRSP room through a pension adjustment.

For these reasons, the IPP's "sweet spot" is fairly specific: an incorporated professional roughly 40 or older, drawing a stable T4 salary of $100,000 or more (and increasingly compelling above $150,000), planning to remain incorporated through to retirement. For a younger professional, a dividend-only compensation strategy, or someone who values maximum flexibility, the RRSP — or a different structure entirely — may be the better fit.

The bottom line

For the incorporated medical professional who fits the profile, the Individual Pension Plan does what the RRSP simply cannot: it shelters far more income, places the deduction where it does the most good, recognizes the years you have already worked, and adapts its contribution room to your age rather than freezing it at a flat ceiling. It converts retained earnings into protected, tax-deferred retirement capital while reducing corporate tax along the way.

The RRSP isn't wrong — it's just rarely the optimal tool once a professional corporation enters the picture. The right question is no longer "Have I maxed my RRSP?" but "Is my corporation funding my retirement as efficiently as the law allows?"

The only way to answer that with precision is an actuarial illustration based on your own salary history, age, and corporate situation. If you're an incorporated physician, dentist, or pharmacist and you've never had an IPP analysis run for you, it's one of the highest-value conversations you can have about your retirement.