
RSU vesting, stock options, and a high marginal rate create a complex tax picture. A proactive strategy can save tens of thousands of dollars each year.
A senior tech professional in Canada earning $200,000 base salary plus $80,000 in RSU vesting faces a marginal tax rate of over 53% in Ontario on income above $246,752. Without proactive planning, the CRA claims more than half of every additional dollar.
The Canadian tax system provides multiple legal mechanisms to reduce, defer, and restructure taxable income. Tech professionals who use them consistently can save tens of thousands of dollars each year.
The first principle: employer withholding on RSUs at a flat 22-25% almost always falls short of the actual marginal rate. Tax planning starts with closing this gap proactively, not at filing time.
| Strategy | Tax Benefit | Best For |
|---|---|---|
| RRSP contributions | Deduction at marginal rate (up to 53%+) | All employed tech professionals |
| TFSA contributions | Tax-free investment growth | All tech professionals |
| Incorporating as CCPC | SBD reduces corporate rate to ~12.2% on first $500K | IT contractors, consultants |
| Salary + dividend blend | Optimize CPP, RRSP room, and tax brackets | Incorporated tech professionals |
| Capital gains on CCPC shares (LCGE) | Up to $1,250,000 tax-free on qualifying shares | Tech entrepreneurs |
| SR&ED tax credits | 35% refundable credit on qualifying R&D expenditures | Tech companies with R&D activity |
| Home office deduction | Deduct home office expenses from employment income | Remote tech workers (T2200) |
When RSUs vest, the fair market value is included in employment income on the T4 - exactly as if the company paid that amount as salary. Many employers withhold at a flat 22-25% rather than the actual marginal rate, creating a significant shortfall.
After vesting, holding the shares means subsequent gains are capital gains (50% inclusion). If the shares decline, you still owe tax on the vesting-date value as employment income.
The key strategies: ensure tax installments cover the shortfall, consider selling at vesting to avoid concentrated risk, and coordinate vesting with RRSP contributions. See stock options and RSUs for tech professionals.
If the CRA determines your CCPC is a PSB, the corporation loses access to the Small Business Deduction, most business expense deductions, and faces a higher corporate tax rate.
The CRA generally classifies a corporation as a PSB if the incorporated worker would be regarded as an employee but for the corporation, the corporation has fewer than five full-time employees, and the client controls the work environment.
Mitigate with multiple clients, your own equipment, deliverable-based contracts, and the indicia of an independent business - see incorporating a tech business.
The SBD reduces the federal corporate rate from 15% to 9% on the first $500,000 of active business income - approximately 12.2% combined in Ontario. The deferral opportunity versus a 53% personal rate is substantial.
The SBD erodes when passive investment income exceeds $50,000 per year ($1 of SBD lost per $5 of passive income), eliminated entirely at $150,000. Corporate-owned life insurance is a useful tool here because growth inside an exempt policy does not count as passive income, and proceeds eventually flow out tax-free through the Capital Dividend Account.
SR&ED provides a 35% refundable investment tax credit on the first $3 million of qualifying R&D expenditures - cash refunds even with no tax payable. Proper documentation is essential.
SG Wealth builds proactive tax plans that coordinate RSU and stock option income, RRSP and TFSA contributions, incorporation strategy, and estate planning.
For high-income tech professionals, the difference between reactive tax filing and proactive tax planning is measured in tens of thousands of dollars per year.
Book a consultation to review your current situation and identify the strategies that will have the greatest impact on your after-tax income.
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