Kanata Tech Compensation: How RSUs, Options and ESPP Are Actually Taxed

In most of Ottawa a pay stub is the whole story. In Kanata it frequently is not. The technology employers along the March Road corridor and through Kanata North pay a base salary and then layer equity on top, and for a senior engineer or a manager the equity can be the larger number. The trouble is that the three common forms of equity are taxed in three different ways, and the moment of tax is set by the plan, not by when you decide to sell. People who have never had to think past a T4 arrive at a return with a five-figure surprise built into it.

All three start life as employment income rather than as a capital gain. What differs is the date the income arises and whether a deduction softens it. An RSU is taxed on vesting at the full value of the shares. An option is taxed when the shares are acquired if the employer is not a Canadian-controlled private corporation, and only when the shares are sold if it is, and in both cases a deduction of one half of the benefit may apply where the statutory conditions are met. An employee share purchase plan discount is taxed on acquisition and usually gets no such deduction. Everything after that, the rise or fall in the share price from that date, is a capital gain or loss.

Restricted stock units are salary that happens to arrive as shares

An RSU is the simplest of the three and the one most often misunderstood. When the units vest, the fair market value of the shares that day is employment income. It goes on your T4 like any other pay, and the employer usually sells a slice of the vesting shares to cover the withholding, which is why a vest of a hundred shares often lands as roughly sixty in the account.

That sell-to-cover is where the shortfall starts. Withholding on a lump such as a vest is calculated by the payroll system on the taxable benefit as it sees it, which for a high earner with several income sources is frequently below the marginal rate that will actually apply on the return. A Kanata engineer whose total pay sits in a top bracket can be under-withheld on every vest and only discover it in April. If that describes you, the fix is either an increase in withholding on the salary side or a deliberate reserve set aside at each vest.

The part that trips people next is what happens after. The value taxed at vesting becomes the cost base of the shares you keep. If you hold them and they rise, the further increase is a capital gain when you sell, and only that further increase. If they fall, you have a capital loss on the difference, but the income already taxed at vesting does not come back. A share held from a vest two years ago carries a cost base most people cannot state without digging out the vesting statement, and that number is the whole difference between calculating the gain correctly and guessing.

Stock options depend on whether the employer is a CCPC

Options are where the Kanata packet gets genuinely two-track, because the treatment turns on what kind of company granted them.

At a large public employer, a private-company subsidiary of a foreign parent, or any corporation that is not a Canadian-controlled private corporation, the CRA includes the benefit in the year the shares are acquired: the spread between the exercise price and the market value that day is employment income, whether or not you sell a single share.

A deduction of one half of that benefit can apply, which brings the effective rate closer to capital-gains treatment, but only where all the conditions are met: you dealt at arm’s length with the employer, the share is a prescribed share, and the exercise price was not less than the market value on the day the agreement was made. A discounted grant fails that last test and gets no deduction at all. There is also a ceiling. For options granted on or after 1 July 2021 by a non-CCPC that is, or is part of a consolidated group that is, above a revenue threshold set in the legislation, only $200,000 of options measured at grant-date value may vest in a year and still qualify for the deduction. Anything above that is a non-qualified security and the benefit on it is fully taxable. Where the proposed reduction of this deduction to one third comes up, note that the change was announced and then cancelled on 21 March 2025; the deduction is one half, and it is claimed on line 24900.

At a CCPC the timing moves. The benefit is included in the year the employee disposes of the shares rather than the year of exercise, which removes the worst problem in the system: owing tax in a year you received no cash for shares you cannot sell. A separate route to the one-half deduction also opens where the shares are held at least two years before disposition and no deduction was claimed under the standard conditions. Kanata has both kinds of employer within a few kilometres of each other, a global name and a venture-funded startup, so two neighbours on the same street can hold options that are taxed years apart. Knowing which regime your grant falls under is not a detail, and the general stock option rules reward being read before the exercise rather than after.

An employee share purchase plan is a discount, and the discount is income

An ESPP lets you buy company shares through payroll, usually at a discount to market. That discount is the taxable event. On acquisition, the difference between what the shares were worth and what you paid is employment income, and because the entire point of the plan is a purchase price below market, the half-deduction that can soften an option grant is usually not available on the discount. Employer matching, where it exists, is a benefit in the same way.

Every purchase period creates its own tranche at its own price, and here the mechanics are not what most people assume. Shares of the same class are identical properties, so they do not keep separate cost bases. You recalculate a running average cost across every share of that class you own at the time of each purchase, and it is that average, not the price of any one tranche, that is used when you sell. The practical consequence for a Kanata employee is stronger, not weaker: RSU shares and ESPP shares of the same class pool together into one average, so eight years of purchases and vests have to be reconstructed in order, from the first one, to produce a single correct number. This is the most common reconstruction job on a Kanata return, and it is entirely avoidable with a spreadsheet kept from the first purchase.

One trap follows directly from that pooling. If you sell shares at a loss and you or an affiliated person buy identical shares in the window from 30 days before to 30 days after the sale, and still hold them 30 days after, the loss is a superficial loss and cannot be claimed. It is added to the cost base of the shares you bought instead. An ESPP that buys automatically every pay period, or an RSU tranche that vests on schedule, will trigger that rule without anyone deciding anything, which is why selling at a loss in December needs the purchase calendar checked first.

What to keep, starting now

The tax on all three forms is decided by records you either kept or did not. Keep the vesting statements for every RSU vest, with the share count and the fair market value used. Keep the exercise confirmations for options, with the exercise price and the market value that day, and know whether the grant is from a CCPC. Keep the purchase summaries for every ESPP period, and maintain the running average cost base as you go rather than at the end. None of this is exotic, and all of it is impossible to recreate accurately three years later when the brokerage has archived the account, which is why the retention rules matter more here than on an ordinary salary return.

Two planning points sit on top of the record keeping. The capital gains inclusion rate is one half, so the portion of your outcome that is a capital gain is taxed far more lightly than the portion that was employment income at vesting, which argues for understanding exactly where that line falls in your own holdings. And a vest year is often the best RRSP year you will get, because the deduction lands against income that arrived at your top rate. That is the core of any sensible RRSP strategy for Ottawa tech workers, and it has to be decided before 31 December rather than in April. The wider question of when to exercise and when to sell is covered in equity compensation planning, but that strategy only works once the numbers underneath it are straight.

If your Kanata package is mostly equity and nobody is tracking the cost base, send me the vesting and purchase statements and we can rebuild the average cost base once, properly, and work out what the next vest should have set aside. The moment to do that is before another tranche lands on a pile nobody is tracking, not the week the return is due.