RRSP vs TFSA vs Corporate Investing: Which Is Best for Corp Owners?

As a Canadian corporation owner, you have a unique advantage: three distinct places to invest. Your RRSP, your TFSA, and your corporation itself. Each has different tax treatment, contribution rules, and strategic implications.

The best choice depends on your income level, how much you're investing, and when you plan to access the money.

The Three Accounts at a Glance

The 2026 figures are CRA's published limits (RRSP and TFSA dollar limits, modified 2025-12-01). The corporate rates are the federal rates plus the provincial rates CRA and Ontario publish; the bankruptcy row reflects section 67(1)(b.3) of the Bankruptcy and Insolvency Act. Provincial exemptions and the asset or plan structure can also matter.

RRSP: Tax-Deferred Growth

An RRSP is the classic retirement account. Contributions reduce your taxable income today, the investments grow tax-free inside the account, and you pay tax when you withdraw in retirement (ideally at a lower tax bracket).

When an RRSP may fit

• Pay themselves a salary and have RRSP room
• Expect their marginal tax rate to be lower in retirement
• Want to reduce personal taxable income now
• Are planning to use the Home Buyers' Plan ($60,000 limit) or Lifelong Learning Plan

Where your RRSP room comes from

Salary from your corporation can generate RRSP room; dividends cannot. Salary is not the only source of earned income: self-employment income and certain other income can also qualify. A dividends-only owner with no other earned income generates no new room from those dividends, but may still have unused room. That is the RRSP side of the salary versus dividends decision.

Each year's new room is 18% of the previous year's earned income, capped at the dollar limit for the year, less any pension adjustment from a registered pension plan. Unused room carries forward, and your Notice of Assessment shows the running total. The formula below is simplified: pension adjustment reversals, past service pension adjustments and certain connected-person amounts can also affect the limit. See CRA's registered-plans guide.

So the salary you pay yourself in 2026 decides your 2027 room, not your 2026 room.

Deadlines, limits and withdrawals

• Contribution deadline. Contributions made in the first 60 days of a year can be deducted for the year before. For the 2025 tax year the deadline was March 2, 2026; for 2026 it is March 1, 2027. A contribution made after the deadline belongs to the following year.
• Over-contributions. An adult who meets the age condition generally has a $2,000 excess-contribution cushion, but it is not deductible room. Unused contributions above the permitted amount generally incur 1% monthly tax, subject to the statutory calculation and exceptions.
• Withholding on withdrawals. For an ordinary resident withdrawal, the issuer withholds 10% on amounts up to $5,000, 20% on amounts over $5,000 up to $15,000, and 30% above $15,000. In Quebec the federal rates are 5%, 10% and 15%, with Quebec tax withheld on top. The withholding is a prepayment; the whole withdrawal is added to your income for the year.
• Home Buyers' Plan. You can withdraw up to $60,000 toward a first home and repay it over 15 years. Repayments normally start in the second year after the withdrawal; for a first withdrawal made from January 1, 2022 to December 31, 2028 they start in the fifth year after it. CRA confirms the extension through 2028 on its current HBP page.
• Lifelong Learning Plan. Up to $10,000 a year and $20,000 in total for eligible education, repaid generally over 10 years.
• Age 71. December 31 of the year you turn 71 is the last day to contribute to your own RRSP, which must mature by then. You may still contribute to a younger spouse's RRSP if you have room and the spouse is within the age limit.
• US dividends. Qualifying US-source dividends received directly by an RRSP generally benefit from Article XXI of the Canada-US treaty. That does not eliminate withholding borne inside a Canadian fund that holds US investments, and special distributions can differ. A TFSA does not receive the RRSP retirement-plan exemption.

Worked example: what a contribution saves

A BC owner-manager paid herself $100,000 of T4 salary in 2025 and pays herself the same in 2026. She has $5,000 of unused room carried forward and no pension adjustment or other adjustment to the example's deduction limit.

18% x $100,000 (below the 2026 dollar limit)   $18,000
Plus carry-forward                              $5,000
2026 RRSP deduction limit                      $23,000

Contribution made February 20, 2026            $15,000
Taxable income falls from about $100,000
  to about $85,000
Marginal rate on that band in 2026:
  federal 20.5% + BC 7.7%                        28.2%
Tax saved: $15,000 x 28.2%                      $4,230
Room left to carry forward                      $8,000

The whole $15,000 sits inside the 2026 federal band from $58,523 to $117,045 and the BC band from $50,363 to $100,728 (CRA's 2026 rates, modified 2026-06-25), so every dollar saves 28.2%. She claims it on line 20800 of her 2026 return. Because she contributed in the first 60 days of 2026, she could instead have claimed it on her 2025 return against her 2025 room.

The catch:

Every dollar withdrawn from an RRSP is taxed as regular income. If you're in the same tax bracket when you retire as when you contributed, the RRSP and TFSA can give the same after-tax result when compared from the same pre-tax dollars, as shown below. An RRSP still shelters investment growth from annual tax; that differs from an ordinary taxable account.

TFSA: Tax-Free Growth

A TFSA accepts after-tax dollars and generally shelters permitted investment income and withdrawals from Canadian tax. Excess contributions, non-resident contributions, non-permitted investments and business income can produce tax; foreign withholding can also remain. See CRA's TFSA tax exceptions.

When a TFSA may fit

• Have maximized their RRSP (or don't have RRSP room due to dividend-only compensation)
• Want flexibility to withdraw without tax consequences
• Are investing for medium-term goals (not just retirement)
• Expect high investment returns (the tax-free growth benefit increases with higher returns)

Key advantage:

Unlike the RRSP, TFSA withdrawals don't affect your eligibility for income-tested government benefits in retirement. CRA states that neither the income earned in a TFSA nor withdrawals from it reduce Old Age Security, the Guaranteed Income Supplement or EI benefits, or credits such as the Canada child benefit, the Canada workers benefit, GST/HST-related benefits and the age amount. This can be significant.

Contribution room:

You can contribute if you are 18 or older, resident in Canada and have a valid SIN. Room builds from the year you turn 18, and it does not build in a year you are a non-resident for the whole year.

The annual TFSA limit for 2026 is $7,000. If you were 18 or older and resident every year since 2009 and have never contributed, your cumulative room in 2026 is $109,000. Unused room carries forward indefinitely. A withdrawal gives the same amount of room back on January 1 of the following year, not straight away, so an early recontribution can create an excess. An excess is taxed at 1% of the highest excess amount in each month until it is withdrawn or new room absorbs it.

Worked example: a TFSA year

A BC resident turned 18 in 2015 and has never contributed. Her room at the start of 2026 is the total of the annual limits from 2015 through 2026: $78,000.

• She contributes $30,000 on January 10, 2026. It is not deductible, so there is no refund.
• The account earns $2,000 of eligible dividends and $3,000 of capital gains in 2026. Neither is taxed or reported.
• She withdraws $10,000 on December 1, 2026. It is not taxed or reported.
• The withdrawal does not free up room in 2026. Putting the $10,000 back in December would use $10,000 of her remaining $48,000 of 2026 room. The withdrawn $10,000 is added to her room on January 1, 2027, together with the 2027 dollar limit.

Where the TFSA falls short

• US dividends are still withheld. The treaty exemption the RRSP gets does not cover a TFSA, so ordinary US dividends generally face 15% US treaty withholding with proper documentation, and no Canadian foreign tax credit is available for that tax inside the TFSA. The holding structure and type of distribution matter.
• Trading as a business. If a TFSA carries on a business, such as frequent day trading, the TFSA trust is taxed on that income, and the holder is jointly liable for the tax.
• Beneficiary or successor holder. Naming your spouse or common-law partner as successor holder, where your province allows it, lets them take over the account itself, still tax-free, without using their own room. A designated beneficiary generally receives the date-of-death value tax-free, while post-death growth can be taxable depending on the arrangement. A surviving spouse may qualify to contribute a survivor payment without using ordinary room if the conditions and designation requirements are met.

First-time home buyers also have the FHSA, which pairs an RRSP-style deduction on the way in with tax-free qualifying withdrawals for a first home.

Corporate Investing: No Limits, Higher Taxes

Your corporation can invest retained earnings directly. There's no contribution limit. The investable balance is what remains after business costs, corporate tax and the gross cost of any owner compensation. A $200,000 pre-tax profit and an $80,000 personal cash need do not automatically leave $120,000 to invest.

The money stays the corporation's. Cash you take out without declaring it as salary or a dividend, and that is not a repayment of money you lent the corporation, usually ends up as a shareholder loan, with its own repayment deadline.

When corporate investing may fit

• Have maxed out RRSP and TFSA room
• Have significant retained earnings they don't need personally
• Want to build long-term corporate wealth
• Are comfortable with more complex tax treatment

The tax math:

Corporate investment income is taxed at roughly 50% (combined federal and provincial): 50.67% in BC and 50.17% in Ontario. The federal part is 38.67%, which includes a 10.67% additional refundable tax on a CCPC's investment income. However, a portion of this tax is refundable when you pay out the investment income as dividends. The exact refundable addition depends on taxable income and foreign-tax-credit limitations. The Refundable Dividend Tax on Hand (RDTOH) mechanism refunds $38.33 for every $100 of taxable dividends the corporation pays, up to the balance in its refundable pools.

Which dividends release the refund matters. The refundable part of the tax on interest and taxable capital gains (30.67% of that income) goes into the non-eligible pool, which only a non-eligible dividend can release. The Part IV tax on eligible dividends the corporation receives from its portfolio of Canadian shares goes into the eligible pool, which an eligible dividend can release (and a non-eligible dividend can reach once the non-eligible pool is empty). See eligible versus non-eligible dividends for how each is taxed in your hands.

For a private corporation, the non-taxable half of ordinary capital gains can increase the capital dividend account, but non-allowable capital losses and prior capital dividends reduce the available balance. A valid election is required, and the tax-free treatment described here is for a Canadian-resident shareholder. The enacted capital gains inclusion rate is one-half. See CRA's capital-dividend folio and dividend refund guidance.

The passive income trap:

If your corporation earns more than $50,000 per year in passive investment income, your access to the small business deduction starts to erode. At $150,000 of investment income, the SBD is completely eliminated. This means your active business income gets taxed at the general rate instead of the small business rate.

The test uses the adjusted aggregate investment income of your corporation and every associated corporation for tax years ending in the previous calendar year, and it cuts the $500,000 business limit by $5 for every $1 above $50,000. A BC corporation whose group earned $80,000 of investment income in 2025 has a 2026 business limit of $350,000 ($500,000 minus 5 x $30,000), and active income above that is taxed at 27% instead of 11%.

Ontario does not follow the federal passive-income grind for its own small business rate. An Ontario corporation loses the federal 9% rate on the ground-down part of the limit, so that income is taxed at the federal 15% plus Ontario's lower rate: 18.2% before July 1, 2026 and 17.2% from then, instead of the 26.5% general rate.

This creates a real planning challenge for corporations that accumulate large investment portfolios.

Choosing an Order

There is no universal ranking. Compare current and future marginal rates, available contribution room, near-term cash needs and the cost of extracting corporate money:

1. TFSA for flexibility. Consider it when you need accessible savings or expect higher effective withdrawal tax rates later. It needs no salary, withdrawals are tax-free and come back as room the next year, and nothing you take out counts against OAS or other income-tested benefits. The $7,000 annual limit is relatively small, so it doesn't require much salary or dividend planning.

2. RRSP when the deduction is valuable. The tax deduction is valuable at high marginal rates. If you're in a 40%+ bracket and expect a lower rate when you withdraw, the immediate tax savings plus decades of tax-deferred compounding is significant.

3. Corporate investing for retained earnings. Compare the deferral from leaving money inside with corporate investment taxes, future extraction tax, creditor exposure and the passive-income business-limit reduction. It is often relevant when registered room is unavailable, but that does not establish the right order for every owner.

A Practical Comparison

A fair comparison starts every route from the same pre-tax dollars. Suppose your BC corporation has $10,000 of profit you do not need, you invest it for 20 years at 7% a year, and your marginal rate is 40.7% both now and when you withdraw (BC taxable income between $140,430 and $181,440 in 2026). At that income your salary is already above the $85,000 ceiling for CPP contributions, so the extra salary costs no CPP.

Growth factor: 7% for 20 years = 3.8697

RRSP route: paid as salary, contributed, deducted
  (assumes you already have $10,000 of room)
  Invested                                 $10,000
  After 20 years                           $38,697
  Tax on withdrawal at 40.7%              -$15,750
  After tax                                $22,947

TFSA route: paid as salary, taxed first
  Salary                                   $10,000
  Tax at 40.7%                             -$4,070
  Invested                                  $5,930
  After 20 years                           $22,947
  Tax on withdrawal                             $0
  After tax                                $22,947

Corporate route: left in the corporation
  Profit                                   $10,000
  Corporate tax at 11%                     -$1,100
  Invested                                  $8,900
  Growth then taxed inside the corporation,
  and dividend tax when you take it out

The RRSP and the TFSA end in exactly the same place when your tax rate is the same going in and coming out. The RRSP wins when you withdraw at a lower rate: at 28.2% (the 2026 BC rate on taxable income from $58,523 to $100,728), its $38,697 is worth $27,784 after tax. The TFSA wins when withdrawals land in a higher bracket or trigger the OAS recovery tax.

The corporate route starts with $8,900 working instead of $5,930, because personal tax waits until you pay a dividend. What it ends with depends on the investments. Interest is taxed at 50.67% inside a BC corporation every year, with 30.67 points of that refunded when you pay a non-eligible dividend. A buy-and-hold portfolio defers tax on gains until sale, and half of each gain can reach you tax-free as a capital dividend. The deferral is worth the most when the money stays in for a long time and comes out in years when your personal income is low.

What About IPPs and RCAs?

An Individual Pension Plan (IPP) can provide more deductible funding than an RRSP for some older owner-managers. It is a registered defined-benefit pension arrangement subject to specific small-plan and related-member rules. It does not guarantee a higher limit for every owner; funding depends on salary history, age, service and actuarial calculations.

IPPs are complex: CRA requires an actuarial valuation report at least every four years, and provincial pension law can require one more often. They can shelter significantly more income for older, higher-earning owners who draw a steady salary. The pension adjustment your corporation reports for you on your T4 reduces your RRSP room for the next year.

A funded Retirement Compensation Arrangement (RCA) generally involves an employer contribution to a custodian for retirement benefits. Contributions and investment income generally face 50% refundable tax, with refunds governed by benefits paid and the refundable-tax balance. Benefits are taxable to the recipient. CRA's RCA guide explains exceptions and administration.

Common Mistakes

• Paying yourself dividends only for years, then finding out no RRSP room was ever created.
• Missing the 60-day deadline and expecting the contribution to count for the year before.
• Going more than $2,000 over the RRSP limit and paying 1% a month on the excess.
• Forgetting that a pension adjustment from an IPP or other pension plan reduces your RRSP room.
• Planning RRIF withdrawals without projecting where they land against the OAS recovery threshold.
• Putting a TFSA withdrawal back in the same calendar year.
• Assuming TFSA room kept building during years you were a non-resident.
• Holding US dividend stocks in a TFSA and forgetting the 15% US withholding.
• Trading so often inside a TFSA that CRA treats it as carrying on a business.
• Letting the corporation's investment income pass $50,000 without planning for the smaller business limit the next year.

For account mechanics, see CRA's RRSP guide, TFSA contribution-room instructions, RRSP withdrawal withholding, Lifelong Learning Plan and TFSA death-of-holder guidance.

How Ledg helps

Ledg keeps your corporate finances organized so you can see retained earnings, salary paid, and what you have withdrawn. When it's time to discuss investing with your advisor, your numbers are already sorted.