Retained Earnings and the Passive Income Rule

Good years leave money inside the company that was never drawn out. It stayed there because drawing it would have triggered personal tax, and because the company was the cheapest place to keep it while it waited. Two decades of that produces a balance nobody planned and almost nobody has examined. It grew because the business went well, and it was left where it was because nothing obliged anyone to move it.

A provision in the Income Tax Act reads what that balance earns and reacts to it. This page sets out what section 125(5.1) measures, how the reduction it produces works, why it arrives a year after the year that caused it, and how an owner gets the figure out of their own filings. It sizes the mechanism and stops there. It names no product and no strategy as the answer.

What are retained earnings, and what are they not?

They are profits the corporation earned, paid corporate tax on, and never distributed. The word retained is doing the work, because the personal tax on those dollars has been deferred and not cancelled. A retained earnings figure on a balance sheet is a pre-tax number from the shareholder's point of view, and it is not a pension.

Two things follow from that. The corporation holds the money as its own property, so it answers to the corporation's creditors and to the corporation's rules. And every route that eventually moves the money to the owner carries a second layer of tax, whether the route is salary, a dividend, or the repayment of a shareholder loan.

The balance also has a shape. Some of it is working capital the business needs in a slow quarter. Some of it is a reserve the owner keeps because a previous downturn taught them to. And some of it is surplus in the plain sense, meaning money the business will never need, parked wherever it landed when it arrived.

That last portion is the part this page is about. It is the portion that gets invested, and investing is the activity the provision described here measures. An owner who has never separated the three portions on paper is carrying one number where there are really three, and the third is the one with a tax consequence attached to it.

Why does a successful incorporated owner accumulate them?

Because the corporate rate on active business income up to the small business limit is lower than the personal rate the owner would pay on the same dollars, so leaving profit inside the company preserves more of it to work with. Deferral of the personal tax is the whole attraction, and the attraction is genuine.

The effect compounds quietly. An owner who leaves a sum in the company each year for twenty years ends up with a balance that is large relative to the business that produced it, because the deferral gave every retained dollar a head start over the same dollar drawn and invested personally.

Nothing about that is an error. It is the arrangement the small business deduction was designed to encourage, and the owners who followed it were doing what their accountants told them to do. The same accumulation inside a professional corporation is described under incorporated physicians and retained earnings, where the balance is frequently the only asset the corporation has.

The difficulty arrives later. The accumulation carries a consequence the original decision never mentioned, and that consequence is a function of what the accumulated money earns while it sits there. The owner who accumulated the most is the owner who meets it first, which is the part that reads as unfair and is nonetheless how the provision is built.

What is adjusted aggregate investment income?

It is the measure the Act uses to size a corporation's passive earnings for this purpose, and it is defined in section 125(7) of the Income Tax Act. It starts from the corporation's investment income for the year and applies a set of adjustments. It measures income earned in a year and it does not measure assets held.

The starting point is the ordinary material of a portfolio: interest, rents, royalties, and the taxable portion of capital gains net of allowable capital losses. Dividends carry their own treatment inside the definition, which is one of several reasons an owner cannot read this figure off an account statement.

The adjustments are where the definition earns its name. Certain gains are taken out, including gains on property used principally in an active business carried on primarily in Canada, and gains on shares of a connected corporation in defined circumstances. The wording of the provision governs, and the wording sits in the provision itself. An owner does not need to apply the adjustments personally, and an owner who knows they exist will ask the right question about a holding that looks active.

What matters to an owner is the shape of the thing. The measure is annual, it is computed from the corporation's own return, and it can move a great deal from one year to the next while the balance sheet barely moves at all. An owner who wants the definition in full will find it shorter to read than its reputation suggests, and reading it once removes most of the guesswork.

Which kinds of income fall into the measure?

Income the corporation earns from holding things: interest on deposits and bonds, rent from property held passively, royalties, and the taxable portion of gains realised when investments are sold. Income from actively carrying on the business is a separate category, and that is the income the small business deduction was written for.

The distinction doing the work is between earning from activity and earning from ownership. A manufacturer's margin on what it sells is active. The interest the same manufacturer earns on the surplus sitting in its accounts is passive, and the two land in different places on the same corporate return.

Rent is the category owners most often get wrong. Rent from property the corporation holds and lets out is generally passive, so an owner who bought a building inside the operating company because it seemed tidy has added something to this measure without meaning to.

Realised gains are the second. A portfolio that is rebalanced, a property that is sold, a holding that is finally cleaned up: each can produce a taxable gain in one year far larger than the interest that same portfolio produces in a normal one. The year of a sale is therefore the year to watch, and it is usually the year nobody thought to ask about.

What does section 125(5.1) actually do?

It reduces the business limit, which is the ceiling on how much active business income can be taxed at the small business rate. As the group's adjusted aggregate investment income rises above a threshold set in the provision, that limit is ground down on a sliding scale, and the reduction falls out of the formula without anyone exercising judgement.

Follow what that does. Active business income that would have been taxed at the small business rate is taxed at the general corporate rate, because the ceiling that qualified it has shrunk. No new tax has been invented here. A rate the corporation had been using is withdrawn from part of its income.

The provision carries a second reduction as well, tied to the corporation's taxable capital, which catches larger corporations on a different basis. Both reductions live in the same section of the Act, and an owner asking about one should ask about the other in the same conversation. A corporation can be inside one of them, inside both, or inside neither, and the three positions look identical from the outside.

This page prints no threshold, no ratio and no rate. Those figures are set in legislation, they have been amended before, and a number typed onto a web page goes stale without anyone noticing. Your CPA reads the current ones out of the Act and out of the corporation's own return, which is the only version of the arithmetic that is worth anything to you.

Why is the grind felt a year later?

Because the provision measures adjusted aggregate investment income for taxation years that ended in the preceding calendar year. The passive income of one year decides the business limit of the next, so the cost of a strong investment year lands on the corporate return after the year that produced it.

This is the part owners are most often surprised by. The operating business has an ordinary year, the active income is roughly what it always is, and the corporate tax bill rises anyway. Nothing that happened in the business explains it, because nothing that happened in the business caused it.

It also means a single event echoes. A building sold in one year, a portfolio rearranged, a reorganisation that crystallises a gain: the taxable portion enters the measure for that year and shows up as a reduced limit in the following one, whatever the corporation does in the meantime.

And it means correction is slow in both directions. A change made in the holdings today affects the measure for the current year, which affects the limit for next year, so an owner who acts in the month the assessment arrives is already two years into the sequence. Owners who look at the measure once a year, at the same time as the return, stay ahead of it. Owners who look at it when the bill changes are reading history.

How are associated corporations measured?

Together. The reduction is computed on the combined adjusted aggregate investment income of the corporation and of every corporation it is associated with, so a group cannot spread passive earnings across several companies and have each one measured on its own.

That single rule defeats the arrangement most owners think of first. Moving the portfolio into a separate holding company does not remove it from the measure where the two corporations are associated, and whether they are associated is settled by rules in the Act about control and about share ownership within a family.

The group shares the business limit itself as well, allocated among the associated corporations by an agreement filed with their returns. So two group level facts are in play at once: how much limit there is to allocate, and how far the group's passive income has already reduced it. An owner who has only ever seen one company's return has seen one part of a group calculation.

Association is a technical determination and it catches people out. Corporations owned by a spouse, held by a family trust, or controlled by the same person can be associated when nobody involved thinks of them as one business. Your CPA and your lawyer settle that question on the actual share register, and they settle it before anyone assumes the answer, because an assumption here changes every figure downstream of it.

Which holdings do and do not generate the income that counts?

Holdings that pay something out each year generate it, which covers deposits, bonds, lending and property let to tenants. Holdings whose value accrues without an annual income inclusion generate nothing for the measure until something is realised, at which point the taxable portion of the gain enters it.

Assets used in the business sit outside the measure in the ordinary case, and the adjustments in the definition reinforce that by removing certain gains on property used principally in an active business. A company's plant, its equipment and its working capital are not what this provision was aimed at.

Between those two edges sits a long middle that only an accountant can place. Shares of a connected corporation, property with a mixed use, a loan to a related party, an interest in a partnership: each is capable of falling on either side depending on facts that only the corporation's own records hold.

This page will not list holdings by name and call them safe. The measure is defined on income and on the character of that income, and a holding described in general terms on a web page is not the holding sitting in your corporation. The useful question to put to an accountant is narrower than it sounds: what did each holding contribute to the measure last year, in dollars, on the return as filed.

Can a corporation hold a large balance and escape the grind?

Sometimes, because the provision measures income and the balance is only what produces it. A large balance held in a form that pays little out during the year can sit below the threshold, while a smaller balance producing a high yield can sit well above it in the same year.

The opposite is the more common experience. A corporation carrying a significant balance is usually earning on it, since earning is what the balance is there for, and a balance of any size held in ordinary interest bearing form produces measured income roughly in proportion to rates. Owners who were comfortably clear of the threshold in a low rate year have found themselves inside it in a higher rate one without buying a single new asset.

Realisation is the other way in. A corporation can hold quietly for a decade and then trip the measure in the one year it sells, so an owner who looked at the figure once and concluded it did not apply has answered the question for that year alone. The question returns with every disposal, and the answer is capable of changing each time.

Which is why the balance sheet is the wrong document to read for this. The corporate tax return is the right one, and the figure is computed on it every year whether anyone looks at it or not. A balance sheet tells you what the corporation owns. Only the return tells you what that ownership earned, and earnings are what the provision reads.

How does an owner get the actual number?

From the corporation's own T2 return and from the CPA who prepares it. Adjusted aggregate investment income is computed on a schedule of that return every year, so the figure for each of the last several years already exists and nobody has to estimate anything.

Ask for four things in writing. The group's adjusted aggregate investment income for each of the last three taxation years. The business limit the group was allocated in each of those years and what the reduction left of it. Which corporations the CPA treats as associated, and on what basis. And what the current year is on track to produce.

Those four answers turn a vague worry into a position. An owner who knows the trend of the measure, the reduction it has already caused, and the composition of the income producing it can ask sensible questions of anybody. An owner working from a balance sheet and a general impression is guessing.

The T2 corporation income tax guide published by the Canada Revenue Agency sets out where each figure is computed, and it is written for filers and not for specialists. Read it once with the corporation's last return open beside it and the mechanism stops being abstract. The reading takes an evening, the four questions take an hour of a CPA's time, and between them they replace an impression with a position.

What does this page refuse to do?

It refuses to name a product or a strategy as the answer to the number it has just described. A page that sizes a financial exposure and then presents a solution has stopped explaining and started selling, and this site keeps those two jobs on separate pages deliberately.

The mechanism above is real and it is arithmetic. What an owner does about it is a decision with several possible directions, and each of them carries a cost, a timetable, and consequences for the shares, for the business and for the family. None of those directions is decided by a web page.

Where an owner is considering restructuring the holdings, the measurement set out above is the input to that decision, and the person who does the measuring is the CPA who signs the corporate return. That sentence is the whole of the routing this page offers.

Nothing here is tax advice and this practice does not give tax advice. The wider corporate framework sits on the business owners page, where the other questions an incorporated owner faces are dealt with separately. Stating the refusal plainly costs this practice something, and stating it is still the right way to publish a page like this one.

Who this suits, and who it does not

It reaches any Canadian controlled private corporation claiming the small business deduction while it also holds investments, which describes a large share of incorporated owners who have had good years behind them. The only variable is how far along the sliding scale the group already sits today.

It bites hardest on an owner whose company has accumulated for a long time, whose surplus is held in interest bearing or rented form, and whose active income is at or near the business limit. That combination produces the largest reductions, and it describes a great many successful private companies.

It bites less on a corporation whose surplus is modest, whose active income is well under the limit, or whose holdings produce little measured income. Even there the figure is worth knowing, because the measure moves with rates and with realisations, and an owner who has never seen it will not notice it moving.

It does not reach an unincorporated business at all, and it works differently for a corporation with no active business income to protect. Which of those describes your company is the first thing the CPA settles, and it is settled in minutes from the return. Knowing which case you are in is worth more than any general reading of the rule, and it costs almost nothing to establish.