A defined benefit pension plan you sponsor through your own corporation. For incorporated professionals and business owners earning T4 income, an IPP can deliver substantially more retirement contributions than an RRSP — with tax deductions for the corporation, creditor protection, and the option to fund decades of past service. Worth understanding properly before deciding it's right or wrong for you.
An Individual Pension Plan is a defined benefit pension plan registered under the Income Tax Act and pension legislation, sponsored by your corporation, with you as the sole (or primary) member. Your corporation funds the plan with tax-deductible contributions; you retire with a pension benefit calculated by formula, not by what's left in an account.
That last point is the difference. An RRSP is a defined contribution arrangement — what you put in plus what it earns is what you eventually get out. An IPP is a defined benefit arrangement — the formula targets a specific pension benefit at retirement, and the contributions required to fund that benefit are calculated by an actuary based on your age, salary history, and assumed investment returns.
The mechanics of how it works:
Your corporation establishes the plan and registers it provincially and federally
An actuary calculates the required contribution each year to fund the targeted retirement benefit
The corporation makes the contribution (tax-deductible to the corp; not a taxable benefit to you)
The plan invests the funds, ideally to meet the assumed return
If returns underperform the actuarial assumption, the corporation can make additional deductible contributions to make up the shortfall ("top-up" contributions)
At retirement, you draw a pension from the plan or commute it to a Locked-In Retirement Account
The structure costs more to run than an RRSP — there's an actuary, a plan administrator, annual filings, and provincial/federal pension regulator oversight. For most clients who fit the profile, the higher contribution room and tax deductibility outweigh those costs by a wide margin.
IPPs are not for everyone. They work best when several factors line up.
The strong fit:
Incorporated professionals and business owners — physicians, dentists, lawyers, engineers, accountants, consultants, anyone whose income flows through a corporation
Aged 40+ — the math gets meaningfully better with age. Under 40, an RRSP usually beats an IPP. Past 40, the gap opens up, and by 50+ it's substantial
Drawing T4 salary from the corporation — IPP contributions are tied to T4 earned income; pure dividend payouts don't generate IPP room
Earning above the YMPE (Year's Maximum Pensionable Earnings — $73,200 in 2026) — meaningful T4 income is what makes the IPP math work
Stable corporate cash flow — the corporation needs to be able to fund both regular and top-up contributions reliably
Long-term commitment — IPPs are designed for retirement. They're not flexible savings accounts
The weak or wrong fit:
Sole proprietors or unincorporated freelancers — no corporation, no IPP
Pay yourself entirely through dividends — no T4 income means no IPP contribution room
Under 40 with strong RRSP room — the math hasn't kicked in yet
Tight or unpredictable corporate cash flow — can't reliably fund the plan
Short time horizon to retirement (under 5 years) — limited time to use the structure efficiently
Plan to wind up the corporation in the near term — IPPs need a sponsor to function
For most clients in the strong-fit category, an IPP isn't a question of if but when. Setting one up at 50 captures more value than at 60. Setting one up at 60 captures more than at 65. The earlier the better, within reason.
The selling point of an IPP is higher contribution room than an RRSP — a structural advantage most financial advisors don't model out for their incorporated clients. The why behind that advantage is what determines whether it actually fits your situation.
For 2026, the RRSP contribution limit is 18% of earned income, capped at the annual RRSP limit (around $32,490). That cap means high earners hit a ceiling — a physician earning $400,000 still only gets the same maximum RRSP contribution as someone earning $180,000.
An IPP doesn't work that way. The contribution is whatever the actuary calculates as needed to fund the targeted defined benefit pension. The result: contribution room well above the RRSP limit, and the gap widens with age.
Rough comparison for a 50-year-old earning $200,000 of T4 income:
RRSP room (current year): approximately $36,000
IPP contribution (current year): approximately $40,000-$50,000+
Plus past service contribution potential: potentially $200,000-$400,000+ in catch-up contributions for past years
Same individual at age 60:
RRSP room (current year): still capped at the same annual limit
IPP contribution (current year): $50,000-$70,000+
Plus larger past service room if not already used
The age effect is what makes IPPs powerful for older incorporated professionals.
RRSP contributions are deductible against your personal income — you contribute personally, you deduct personally.
IPP contributions are made by your corporation and deducted at the corporate level. This is a meaningful structural difference. Your corporation is putting money into a retirement plan for you, and that money is a deductible business expense.
This is the part most introductions to IPPs underplay. When you set up an IPP, you can buy "past service" — retroactively crediting prior years of T4 employment with your corporation toward your IPP benefit. The actuary calculates what those past years would have required as IPP contributions, and the corporation can fund that amount as a one-time or multi-year contribution, fully deductible.
For an incorporated professional who's been earning T4 income for 10-20 years before establishing the IPP, the past service contribution can be substantial — six figures, often well over $200,000-$400,000+ depending on the salary history and age.
The mechanics:
The corporation needs to fund the past service amount with a deductible contribution
A portion of the past service can be funded by transferring existing RRSP assets into the IPP (this reduces the cash contribution required from the corporation)
The remaining past service contribution comes from the corporation as a deductible business expense
Past service is one of the strongest reasons IPPs are worth considering as soon as you fit the profile. Every year you wait is a year of missed contribution opportunity that compounds.
When investment returns underperform the actuarial assumption (typically 7.5%), the corporation can make additional deductible contributions to make up the shortfall — keeping the plan funded to its targeted benefit. This is unique to defined benefit pension plans and creates additional flexibility for high-income years where the corporation has cash available.
This is the honest comparison. An RRSP costs you essentially nothing to maintain. An IPP requires:
Initial setup costs (actuarial valuation, plan registration, legal fees) — typically $5,000-$10,000+ to set up
Annual administration costs (actuarial, regulatory filings, plan administration) — typically $2,000-$5,000+ per year
Triennial actuarial valuations
Compliance with provincial pension legislation (in Alberta, the Employment Pension Plans Act)
For most clients in the strong-fit profile, these costs are dwarfed by the additional contribution room and tax deductibility. For clients in the weak-fit profile, the costs aren't justified.
A genuine IPP advantage that doesn't get enough attention: assets held in a registered pension plan, including an IPP, generally enjoy strong creditor protection under provincial pension and bankruptcy legislation. RRSP assets have some creditor protection too, but it's limited and varies by province.
For incorporated professionals at risk of professional liability claims (medical professionals especially), this matters. An IPP wraps a meaningful portion of your retirement savings in a structure that's harder to reach from the outside.
This isn't the primary reason to set up an IPP, but it's a real benefit worth knowing.
The IPP holds investments that fund the targeted benefit. Investment selection has real implications for the corporate funding required.
If your IPP outperforms the 7.5% assumed return, contributions may be reduced over time. If it underperforms, the corporation has to make top-up contributions to keep the plan on track.
This creates an interesting dynamic: the corporation effectively benefits from strong investment returns (lower contributions required) and absorbs the risk of weak returns (additional contributions needed). For a corporation with stable cash flow, this is more of a feature than a bug. For a corporation with tight cash, the risk is real.
Most IPPs hold a balanced portfolio of equities and fixed income, sometimes with alternative assets included where appropriate. We work with the plan actuary and a discretionary portfolio manager (or qualified investment advisor) to design portfolios that align with the plan's funding requirements and your retirement timeline.
Worth being explicit about the situations where the answer is "stick with an RRSP" or "use both, but don't lead with the IPP":
You're under 40. The actuarial mechanics don't generate enough additional contribution room versus an RRSP to justify the cost. Revisit at 45.
You pay yourself entirely through dividends. No T4 income, no IPP room. Some clients restructure compensation to introduce a salary component specifically to enable an IPP — that's a planning conversation in itself.
Your corporation isn't profitable enough to consistently fund the plan. Inconsistent funding creates plan compliance issues. The plan needs reliable contributions, not best-efforts.
You're planning to sell or wind up the corporation in the near term. IPPs need a sponsor; without one, the plan has to be wound up too. Possible, but adds complexity to the exit.
You don't want the administrative complexity. RRSPs are simple; IPPs aren't. If administrative simplicity matters more than maximum tax efficiency, the RRSP is fine.
For some clients, the right answer is both — an IPP for the corporation-funded retirement contributions, with personal RRSPs continuing for additional savings (subject to reduced RRSP room once the IPP is in place).
We don't run IPP administration internally — that's specialty work done by actuarial and pension administration firms. What we do is design the strategy, coordinate the setup with the right specialists, and integrate the IPP into the broader financial plan.
A typical IPP setup process:
Initial assessment — review your salary history, corporate structure, age, and retirement goals to confirm the IPP makes sense
Actuarial valuation — engage a pension actuary to model the targeted benefit, required contributions, and past service opportunity
Coordination with your accountant — confirm the corporate tax position and timing
Plan establishment — formal plan documents, registration with provincial pension regulator and CRA, trustee appointment
Initial funding — current year contribution and (where applicable) past service funding, including any RRSP transfer
Investment management — portfolio construction aligned with the plan's funding requirements
Ongoing administration — annual filings, triennial actuarial valuations, regular reviews
Most IPPs are set up over 2-4 months from decision to first contribution, depending on how clean the corporate documentation is and how quickly the actuarial work proceeds.
Generally, T4 income at or above the Year's Maximum Pensionable Earnings ($73,200 in 2026) is the entry point where IPPs start to make sense. At lower T4 incomes, the contribution room differential vs. an RRSP is too small to justify the costs. Most strong IPP candidates have T4 income of $100,000+ and are aged 45+.
Yes, but RRSP contribution room is reduced once an IPP is established. The CRA reports a "Pension Adjustment" each year for IPP members, which reduces RRSP room going forward. You can still contribute to an RRSP, just less than before. Most clients with IPPs continue making smaller RRSP contributions for spousal income splitting or other tactical reasons.
Several options. At retirement, you can either continue receiving the pension benefit from the IPP, or commute the value to a Locked-In Retirement Account (LIRA) for self-directed management. If the corporation is wound up before retirement, the plan generally needs to be terminated and the assets transferred to a LIRA. Pre-retirement plan termination has tax implications that need to be modeled — we coordinate with the actuary to figure out the right path.
Yes, if your spouse is a legitimate T4 employee of the corporation. Spousal participation can effectively double the corporation's tax-deductible retirement contributions and create additional past service opportunity. The CRA does scrutinize whether spousal employment is legitimate (real work, reasonable compensation), so the structure needs to be defensible. For genuine spousal employees in a family-run corporation, this is often a powerful additional benefit.
Past service refers to retroactively crediting your IPP for prior years of T4 employment with your corporation. The actuary calculates what those past years would have required as IPP contributions, and the corporation can fund that amount as a one-time or staged deductible contribution. The amount depends on your salary history, age, and existing RRSP balance (a portion of past service can be funded by RRSP transfer rather than new corporate contribution). For incorporated professionals with 10-20+ years of T4 history, past service contributions can run $200,000-$500,000+, though the specifics vary substantially.
Generally yes. Assets held in a registered pension plan, including an IPP, enjoy strong creditor protection under provincial pension legislation and federal bankruptcy law. There are exceptions (excessive contributions made shortly before bankruptcy, for example, may not be protected), but the general principle is that registered pension assets are harder to reach from the outside than most other asset classes. For incorporated professionals at risk of professional liability claims, this is a meaningful planning benefit.
Initial setup is typically $5,000-$10,000+ (actuarial valuation, plan registration, legal documentation, regulatory filings). Annual administration is typically $2,000-$5,000+, plus a triennial actuarial valuation that adds to the third-year cost. Investment management fees are charged separately based on the assets and the manager. For most clients in the strong-fit profile, these costs are far outweighed by the additional contribution deductibility — but the costs are real and worth understanding.
IPPs can be designed for multiple connected employees of the same corporation — a multi-member IPP. Common structures include both spouses, multiple business partners, or family members involved in the corporation. Each member has their own benefit calculation and contribution. The plan economics generally work even better with multiple members, though the design and administration are more complex.
The honest answer is that it requires a proper actuarial assessment based on your specific situation. We can do an initial scoping conversation in 30 minutes to determine whether you're in the strong-fit profile and whether a deeper actuarial review is worth the cost (initial assessments are typically free; full actuarial valuations are paid). For most clients aged 45+ with $100,000+ of T4 income from their corporation, the answer is "probably yes, and we should look at the numbers."
If you're incorporated, drawing T4 income, and aged 40+, an IPP is worth a serious look. The math is highly individual — your salary history, age, and existing RRSP balance all affect what the plan would generate. Reach out and we'll do an initial assessment, then bring in the actuarial team if it makes sense to go deeper.