A strong year at work, a large bonus, or a well-timed sale of investments can push taxable income past $258,482, where every extra dollar lands in the top federal bracket. Once provincial tax is added, more than half of each additional dollar goes to tax in Ontario and British Columbia. The tax planning strategies for high income earners below all work on that gap between what is earned and what is kept.
Tax planning for high earners comes down to a handful of levers: which type of income is taxed, when deductions are claimed, how gifts are made, and how income is shared across a household or a corporation. The broader list of tax planning strategies applies at every income level, but the ones below carry the most weight at the top rate.
The Same Dollar Is Taxed at Very Different Rates Depending on Its Source
The top combined federal and provincial rates for 2026 show how much the source of income matters:
Interest and salary sit at the top of the range because they are fully taxable. Eligible dividends from Canadian corporations receive a dividend tax credit, and capital gains are taxed on only half of the gain. That half is unchanged for 2026, since the proposed increase to two-thirds was cancelled in March 2025.
In Ontario’s top bracket, a dollar of interest keeps about 46 cents after tax, while a dollar of capital gain keeps about 73 cents. Interest-bearing investments generally fit best inside an RRSP or TFSA, and growth or dividend-paying Canadian equities generally suit the non-registered account, where the lower rates apply.
RRSP Deductions Are Worth the Most at the Top Rate
An RRSP contribution is deducted from income, so its value rises with the rate at which that income would otherwise be taxed. The 2026 limit is $33,810, or 18 percent of the previous year’s earned income if that is lower, so it takes about $187,833 of earned income in 2025 to reach the full amount. For someone well inside Ontario’s top bracket, a $33,810 contribution cuts tax by about $18,100.
Unused room carries forward, and so does the deduction itself. A contribution made in a lower-income year does not have to be claimed that year. It can be held back and claimed in a year with a large bonus, a business sale, or a big capital gain, when the deduction is worth the most.
The cost arrives later, when the money comes out as fully taxable income. The deferral works best when withdrawals are planned for years with lower rates, which is the core of retirement tax planning.
Donating Shares Directly Costs Less Than Selling Them First
Gifts of publicly listed securities to a registered charity follow a special rule: the capital gain is not taxed, and the donation receipt is for the full market value. Take shares worth $50,000 that were bought for $20,000. Selling them creates a $30,000 gain, half of which is taxable, and at Ontario’s top rate that costs roughly $8,000 in tax. Donating the shares instead removes that tax and still produces a $50,000 receipt.
The federal credit on donations above $200 is 29 percent, and it rises to 33 percent on the part of a gift claimed against income taxed at the top federal rate. Provincial credits add to that. Unused donations can be carried forward for five years, so a large gift can be spread across several returns or held for the year when income is highest.
The Alternative Minimum Tax Can Turn a Good Year Into a Surprise
The alternative minimum tax, or AMT, is a second tax calculation that runs alongside the regular one, and the higher result is what gets paid. It applies at 20.5 percent to adjusted income above an exemption of $181,440 for 2026. It includes the full amount of a capital gain instead of half, and many deductions and credits are limited in the calculation.
AMT tends to appear in years with unusual income. The usual triggers are:
- A large capital gain from selling investments, real estate, or a business
- Donating shares in kind
- Exercising stock options
AMT that is paid is not lost. It can be carried forward and recovered against regular tax over the following seven years, which is why large gains and gifts are worth mapping out before the sale or the donation happens.
A Prescribed-Rate Loan Can Move Investment Income to a Lower Bracket
When one spouse or common-law partner earns much more than the other, a loan at the CRA’s prescribed rate lets investment income be taxed in the lower earner’s hands. The prescribed rate is 3 percent and has held there for six quarters in a row through the end of 2026. The rate that applies is the one in effect on the day the loan is made, and it stays fixed for the life of the loan.
The arrangement follows three steps:
- The higher-income spouse lends money at the prescribed rate.
- The lower-income spouse invests the funds.
- Interest on the loan is paid to the lender by January 30 every year.
The interest is income for the lender and a deduction for the borrower, so only the return above 3 percent shifts to the lower earner, who is usually taxed at a lower rate than the lender. That means the investments need to earn more than the interest rate for the loan to pay off. Missing the January 30 payment causes the income to be attributed back to the lender for that year and every year after, which cancels the benefit.
Owners of Corporations Have a Second Set of Levers
A high income earner who owns a corporation can control how much income is taxed personally at all. A Canadian-controlled private corporation pays federal tax of 9 percent on its first $500,000 of active business income, and profit left inside the corporation is not taxed personally until it is paid out. The mix of salary and dividends then decides how much RRSP room is created, how much CPP is paid, and which personal rates apply. Our guide to corporate tax planning covers the small business deduction, the passive income rules, and the salary and dividend decision in detail.
Each Strategy Changes With Income, Province, and Timing
The right order for these strategies depends on the mix of salary, investments, and business income, and on which year a bonus, a sale, or a large gift lands in.
Your Modern Accountant works with high income earners and business owners across Canada to build that plan through our tax planning service, ideally before the year’s largest income event has already happened.