How Does a Deferred Salary Leave Plan Work?
You take a reduced salary for several years and receive the accumulated amount as income during a leave. The deferred portion is not taxed until it is paid, which means income moves from higher-earning years into a year with little other income.
- The answer:: Salary is deferred for up to six years and paid during a leave that must begin no later than the end of the sixth year.
- The trap:: Leaving the employer mid-plan. The deferred amount becomes payable and is taxed in that year, defeating the purpose.
- The recommendation:: Check whether the plan interacts with your pension accrual, because a leave without contributions can reduce a defined benefit pension.
Where the AI summary above gets this wrong
"You can save part of your salary and pay tax on it later."
That's surface-true. Here's what it misses:
- Only through a qualifying plan — Ordinary salary cannot be deferred for tax purposes. A deferred salary leave plan must meet stated conditions to work.
- The leave has a deadline — The deferral period cannot exceed six years and the leave must begin immediately after it, or the whole amount becomes taxable.
- Interest is taxed annually — Income earned on the deferred amounts is taxed to the employee each year, even though the salary itself is not.
01 How the plan is structured
The employee agrees to receive a reduced percentage of salary for a deferral period of up to six years. The withheld portion is held by the employer or a trustee and paid out as income during a leave of at least six months that must begin no later than the end of the sixth year.
The deferred salary is not included in income until it is paid, which is the whole advantage. Income earned on the deferred amounts, however, is taxable to the employee each year as it accrues.
Source: Contributing to an RRSP or PRPP
02 Why the timing produces a saving
The deferred salary is taxed in the leave year, when other employment income is usually small or absent. Moving income from a full working year into a year with little other income can drop it two brackets or more.
For a teacher, academic or public servant taking a sabbatical, that is the mechanism. It also happens to interact well with a large RRSP deduction claimed in a high-income year and used later — the timing choice is in contributing versus deducting.
Shows: what an amount becomes after your chosen number of years at a fixed return. Ignores: tax, fees, inflation, and any variation in returns from year to year.
Source: Contributing to an RRSP or PRPP
03 What breaks the plan
Leaving the employer, or failing to take the leave within the required period, causes the deferred amount to become payable and taxable in that year. That is precisely the concentration the plan was designed to avoid.
The leave also usually suspends pension accrual and can suspend contributions to a group plan. Where the pension formula uses final average earnings, a reduced-salary period can lower the pension itself — the mechanism is in phased retirement in Canada.
Group benefits during the leave are the detail to settle in advance. Some employers continue health, dental and life coverage through a deferred leave and some require the employee to pay the premiums, and a leave arranged without checking can leave a family uninsured for a year. The terms of return to work are worth setting out in writing too, because a plan generally requires the employee to come back for a period at least equal to the leave taken.
These plans are unusually good and almost entirely confined to the public sector, where they were negotiated decades ago. If your employer offers one and you have a use for a year off, the tax arithmetic is better than almost anything else available to an employee.
FAQ
How does a deferred salary leave plan work?
You take a reduced salary for up to six years and receive the accumulated amount as income during a leave, so the deferred portion is taxed when paid rather than when earned.
What happens if I leave my employer?
The deferred amount becomes payable and is taxed in that year, which concentrates the income the plan was designed to spread.
Is the interest on the deferred amount taxed?
Yes. Income earned on the deferred salary is taxable to the employee each year as it accrues, even though the salary itself is not.
Sources
Regulator references
- Contributing to an RRSP or PRPP · Canada Revenue Agency · 2025How RRSP deduction limits are set and that unused room carries forward.Last verified: 2026-09-07
- Canadian income tax rates for individuals · Canada Revenue Agency · 2025The federal and provincial rate brackets a withdrawal is taxed against.Last verified: 2026-09-07
Calculator unit tests · the assertions this page's worked example is checked against, and their last result
Changelog
- 2026-09-07 — initial publish (new format)
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