RRSP Strategies for Tech Workers in Ottawa: RSUs, Options and the Order That Matters

Ottawa’s tech sector produces a specific tax situation: a high, rising T4 income plus equity compensation that arrives on a vesting schedule you do not control. The equity is what makes it complicated. It shows up as employment income in years you did not choose, in amounts you cannot smooth, and it interacts with every registered account decision you make.
This article covers what the rules actually say, because a great deal of the advice circulating on this topic is either American or out of date.
First, the two things that decide the shape of your year
Your income is a T4, not a W-2. That is not pedantry. It means employment expense deductions are governed by the Income Tax Act’s employment rules, which are far narrower than the self-employment rules, and it means your withholding is already close to correct unless equity vests.
RSUs and options are taxed completely differently from each other. Most of the planning value in a tech compensation package sits in that difference.
| Stock options | RSUs | |
|---|---|---|
| Taxable event | Exercise | Vesting |
| What is taxed | Spread between exercise price and fair market value | Full value of the shares that vest |
| Deduction available | Possibly one-half, if conditions met | None |
| Timing control | Yes, you choose when to exercise | No, vesting is on the plan’s schedule |
| After the taxable event | Further growth is a capital gain | Further growth is a capital gain |
The row that matters is timing control. Options give you a lever. RSUs do not, which is why the planning around RSUs is about what you do in the same year rather than about the RSUs themselves.
The security options deduction, stated correctly
The often-repeated line is “only 50% of a stock option benefit is taxable”. That is a conclusion, not a rule, and it fails in cases that are common in Ottawa.
The benefit on exercise is employment income in full. A separate deduction of one-half may then be claimed under line 24900, but only if the conditions are met. Two constraints do the most damage:
The $200,000 annual vesting limit. For employees of a non-CCPC employer that, alone or as part of a consolidated group, has revenue above $500 million, options granted on or after 1 July 2021 are subject to a $200,000 annual vesting limit measured on the fair market value of the underlying shares at grant. Options vesting above that limit in a year are non-qualified securities and the employee deduction is not available on them. If you work for a large public tech employer with a substantial grant, assume this applies until payroll confirms it does not.
CCPC options work differently. Where the employer is a Canadian-controlled private corporation and the shares are held for the required period, the taxable benefit is generally deferred to disposition rather than arising on exercise. Early-stage Ottawa startups and large public employers are therefore not the same planning problem at all. The comparison is worked through in employee stock option tax planning.
Your T4 and the associated slips will show what was reported and what deduction your employer considers available. Reconcile that before you file, not after.
RSUs: the year they vest is the year you plan
An RSU vesting is employment income equal to the full value of the shares. There is no deduction and no halving. A large vest lands on top of your salary and can push a meaningful slice of your income into a higher bracket in a single year.
Three genuine responses:
Use RRSP room in the vesting year. A deduction is worth your marginal rate, so it is worth most in the year your income spikes. Deliberately carrying unused RRSP room into a known large vesting year is one of the few legitimate timing plays available to an employee. Confirm your own room on your notice of assessment or in CRA My Account: the annual dollar limit is published by the CRA and changes each year, and a pension adjustment reduces it if you have a workplace plan.
Decide whether to hold or sell at vest, and be honest about why. At vesting you have paid full employment-income tax on the value. Holding the shares from that point is an investment decision, made with after-tax money, in a single stock issued by the same employer who pays your salary. Framed that way, most people conclude they are more concentrated than they intended.
Watch the withholding. Employers typically withhold on the vest, often by selling shares. Whether that withholding matches your actual marginal rate is your problem, not theirs, and an under-withheld vest becomes a balance owing in April.
What happens after vesting or exercise
Once you own the shares, further movement is a capital gain or loss. The inclusion rate is one-half: the proposed increase to two-thirds was cancelled on 21 March 2025, so any calculation you were given based on two-thirds should be redone.
Two related points:
- A loss on shares you hold after a vest is a capital loss. It cannot be applied against the employment income you already paid tax on at vesting. This is the outcome that hurts people when a share price falls after a large vest, and there is no relief for it
- Donating shares in kind changes the arithmetic materially. Where publicly listed securities are donated to a qualified donee, an inclusion rate of zero applies to the capital gain, and a donation credit is claimed on the full fair market value. Selling first and donating cash does not achieve this. Note that a donation credit reduces tax, it does not exceed the tax otherwise payable, so a gift is never a net cash gain. The credit rates and the carry-forward rules are covered in charitable giving and tax in Canada
Account order for a high T4 income
| Priority | Account | Why here |
|---|---|---|
| 1 | Employer pension or RRSP match | An immediate return equal to the match |
| 2 | RRSP | Deduction at your marginal rate, which is high |
| 3 | TFSA | Tax-free growth, and full flexibility |
| 4 | Spousal RRSP, if there is an income gap | Shifts future taxable withdrawals to the lower earner |
| 5 | Non-registered | After the above, and where losses are usable |
One asset location point worth knowing, because it is specific to registered accounts and is not intuitive: under the Canada-United States tax treaty, US withholding tax on dividends is generally relieved for an RRSP holding US-listed shares directly, and is not relieved for a TFSA. That is an argument for which account holds what, not for whether to use both.
Spousal RRSPs use your room, not a separate limit. There is no additional contribution room for a spousal plan. There is also an attribution rule: withdrawals from a spousal RRSP within a defined period after a contribution are attributed back to the contributor. The rule and the timing are in spousal RRSP strategy, and the broader RRSP-versus-TFSA question is in TFSA versus RRSP.
Home office deductions: much narrower than you have been told
This is where advice written during the pandemic is now actively wrong.
The temporary flat rate method no longer applies, from the 2023 tax year onward. Employees claiming home office expenses must use the detailed method and must hold a signed Form T2200 from their employer. No T2200, no claim.
What a salaried employee can claim is a reasonable portion of:
- Rent
- Utilities
- Minor maintenance and repairs to the work space
- Certain supplies and a work-related portion of certain phone costs
What a salaried employee cannot claim:
- Mortgage interest
- Property taxes
- Home insurance
- Capital cost allowance
- Office furniture and equipment, including desks, chairs and monitors
That last one catches almost everyone. A monitor is a capital item, and an employee cannot depreciate it. Commission employees have a slightly wider list, which is why you will find contradictory advice online: most of it is quoting the commission rules or the self-employment rules at salaried employees. The full picture for hybrid and remote arrangements is in remote work expenses for employees.
Four things people get wrong
Cashing out an RRSP on a job change. An RRSP is your plan, not your employer’s, and it does not need to move when you do. If you do withdraw, withholding outside Quebec is 10% up to $5,000, 20% above $5,000 to $15,000, and 30% above $15,000, and that is withholding, not the tax. The full amount is added to your income and the balance is due in April. Contribution room is not restored.
Assuming one flat marginal rate. Combined federal and Ontario rates rise across several brackets, and the top combined rate is well above the mid-bracket figure often quoted in articles on this topic. Use your own bracket for your own income level. Rates change, so check the current schedule rather than a number in an article.
Missing the filing deadline. For most individuals the return is due 30 April. If you or your spouse carried on a business the return is due 15 June, but any balance owing is still due 30 April. There is no 1 June deadline.
Letting concentration build. Salary, RSUs and options are all claims on the same employer. A downturn at that employer hits your income, your unvested equity and your vested shares simultaneously. Diversifying out of vested stock is not disloyalty, it is the correction for a risk you did not choose to take.
A short year-end checklist
- Pull your RRSP deduction limit from your notice of assessment.
- Map your vesting schedule for the next 24 months and mark the large years.
- Decide, in advance, whether unused RRSP room is being saved for one of them.
- Confirm with payroll whether the $200,000 vesting limit affects your options.
- If you work from home, get the T2200 signed before year end, not in April.
- Set a standing rule for what you sell at vest, and follow it.
If you have a large vest coming and want the RRSP timing, the option deduction and the withholding worked out before the shares land rather than after, that is worth a conversation while you still have choices.
Related reading
Sources & references
- CRA - Contributing to an RRSP, PRPP or SPP
- CRA - Employee security (stock) options
- CRA - Line 24900, Security options deductions
- CRA - Home office expenses for employees
- CRA - Tax rates on RRSP withdrawals
- CRA - Capital gains realized on gifts of certain capital property
- CRA - MP, DB, RRSP, DPSP, TFSA limits and the YMPE
- CRA - Filing due dates for the 2025 tax return
