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Deferred Salary Leave Plan (DSLP)

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A deferred salary leave plan lets an employee defer part of their salary for a period of years and then draw the deferred amounts as income during a funded leave of absence — a sabbatical, a period of study, or extended time away. Deferring salary would ordinarily be caught by the salary deferral arrangement rules, which tax deferred amounts as though they had been received. A DSLP escapes that only because it is a prescribed exception, and the exception comes with strict conditions: how much may be deferred, how long the deferral may run, how long the leave must be, and that the employee must return to work afterwards. Breaching any condition collapses the arrangement into a salary deferral arrangement with retroactive effect, which is why the questions that reach you are usually about an arrangement that has already gone wrong. This tutorial covers those conditions and what to do when one fails.

How to work through this tutorial

The conditions are the whole topic, so this works through them in the order they bind: 1. Understand why a DSLP needs a prescribed exception at all. 2. Set the plan up in writing before any deferral begins. 3. Respect the limit on how much salary may be deferred each year. 4. Respect the limit on how long the deferral period may run before the leave starts. 5. Meet the minimum length of the leave itself. 6. Ensure the employee returns to work for the required period afterwards. 7. Handle the tax treatment: deferred amounts, and the interest they earn, are taxed differently from each other. 8. Know what happens when a condition fails, because it is not a small correction. 9. Check your work against the common pitfalls. 10. Verify every specific against CRA's published guidance before relying on it. This tutorial explains the conditions and the treatment. It does not calculate deferrals or tax.

Why a DSLP needs an exception

Salary deferral arrangements are dealt with harshly for a reason. If an employee could simply agree to be paid later, income could be shifted between years at will, and the salary deferral arrangement rules exist to stop that: where the rules apply, the deferred amount is included in the employee's income in the year it was earned, as though the deferral had not happened. A deferred salary leave plan is a deliberate exception to that treatment, prescribed in the Income Tax Regulations. Where the arrangement meets the prescribed conditions, it is excluded from the salary deferral arrangement rules and the deferred salary is taxed when it is actually received during the leave — which is the whole point, since the employee has little or no other income in that period. The exception is therefore conditional, not general, and that is the single most important thing to understand about administering one. The conditions are not best practices or guidance; they are the basis on which the arrangement is not taxed immediately. This also explains why the conditions are so specific about matters that might otherwise look like employment questions — the length of the leave, the return to work. They exist to establish that the arrangement is genuinely a funded leave and not a device for shifting income between years. A DSLP is not a pension plan and not a registered plan. It generates no pension adjustment, has no registration, and files no plan return.

The conditions on deferral

Two conditions bind on the deferral side. The first limits the proportion of salary that may be deferred in any year. An employee cannot defer their whole salary — a fixed maximum proportion applies, and it is set at a level intended to keep the arrangement a partial deferral rather than a wholesale one. Confirm the proportion in the Regulations; it is a fixed fraction rather than an annual figure, so it does not change from year to year, but that also makes it exactly the kind of number that gets carried forward incorrectly. The second limits how long the deferral period may run. The leave must begin within a maximum period after deferrals start. An arrangement that lets an employee defer indefinitely against a leave at some unspecified future date does not qualify, and a plan that permits repeated postponement of the leave date is likely to fail this condition even if each individual postponement seemed reasonable. The plan must be in writing and the arrangement established before the deferrals begin. Documenting an arrangement retroactively, after an employee has already been deferring, does not cure the position. The employer holds the deferred amounts. A DSLP is not a funded trust arrangement in the way a registered plan is, and the employee is an unsecured creditor for their deferred salary — a point worth making to employees, particularly where the employer's financial position is uncertain.

The conditions on the leave and the return

The leave itself must meet a minimum length. A shorter period reduced to a few weeks would not be a leave of the kind the exception contemplates, and the minimum is set accordingly. Confirm the period in the Regulations. A shorter minimum applies where the leave is taken for full-time attendance at a designated educational institution. This is the provision that makes a DSLP work for an employee taking a period of study, and it is worth knowing about because the general minimum would otherwise rule out shorter academic terms. Confirm both the reduced period and what qualifies as full-time attendance at a designated institution. During the leave, the employee must not receive salary or wages from the employer other than the deferred amounts being paid out, and other than certain permitted amounts. An employee who continues to be paid, or who does substantial work during the leave, undermines the basis of the arrangement. After the leave, the employee must return to work for the employer for a period at least as long as the leave. This condition is what establishes the arrangement as a genuine funded leave within an ongoing employment relationship rather than a phased exit. The return-to-work condition is the one most likely to fail in practice, because it depends on something nobody controls: whether the employee comes back and stays. An employee who takes a year's sabbatical and resigns three months after returning has breached it, however sincerely they intended otherwise when they left.

Tax treatment during and after deferral

Deferred salary is not included in the employee's income while it is being deferred. It is included when it is paid out during the leave, and reported on their T4 for the year of payment in the ordinary way. That is the benefit of the arrangement: income lands in a year of low earnings. Interest or other income earned on the deferred amounts is treated differently, and this is the distinction administrators most often miss. Amounts earned on the deferred salary are included in the employee's income annually as they are earned — not deferred to the leave — and must be reported to them each year. So an employee in a DSLP typically has something to report every year of the deferral period even though they have received no deferred salary. An employer that reports nothing until the leave begins has under-reported the employee's income for each year of the deferral. Source deductions follow the income. Where the deferred salary is paid during the leave it is subject to withholding at that point; where interest is included annually it is reported as required for that kind of income. Confirm the treatment for each component rather than applying one approach to both. Because the deferred amounts are salary when paid, they are employment income during the leave and carry the associated payroll consequences. Confirm how the arrangement interacts with pensionable and insurable earnings, as that determination affects both employer and employee and is not obvious from the tax treatment alone.

When a condition fails

If the arrangement ceases to meet the prescribed conditions, the exception no longer applies and the arrangement is a salary deferral arrangement. The consequence is retroactive: the deferred amounts become taxable as though they had been received when earned, in the years they were earned. That is a materially worse outcome than simply ending the plan. The employee faces income inclusions in prior years, with the interest and reassessment consequences that follow, at a point when the money may already have been spent during the leave. The failure modes worth planning for are the ones outside anyone's control. An employee who does not return, or who returns and leaves before completing the required period, breaches the return-to-work condition. An employee who becomes ill, is laid off, or dies during the deferral or the leave presents a situation the general rule does not obviously address. The Regulations and CRA's guidance address termination of the arrangement and some of these events, and the treatment is not uniformly punitive — but it must be confirmed for the actual circumstance rather than assumed. Do not treat every departure as an automatic collapse into a salary deferral arrangement, and do not assume any of them are fine. Where the plan is simply cancelled and the deferred amounts are paid out without a leave being taken, the amounts are income when received, and the arrangement's treatment for the deferral years needs checking. The practical lesson is that a DSLP should be documented with an exit route in mind. Plans drafted only for the successful case leave the employer improvising at exactly the moment the tax consequences are largest.

Common pitfalls

Not reporting the interest earned on deferred amounts each year. It is included annually as earned, not deferred to the leave, and an employer that reports nothing until the leave under-reports every year of the deferral period. Deferring more than the permitted proportion of salary. Letting the deferral period run past the maximum before the leave begins, usually through repeated postponement of the leave date. A leave shorter than the minimum, or one that fails the minimum because the employee returned early. Relying on the reduced minimum for educational leave without confirming that the attendance qualifies as full-time at a designated institution. Paying the employee salary during the leave, or having them perform substantial work. Failing the return-to-work condition. This is the most common breach and it depends on the employee's choices, not the employer's administration. Documenting the plan after deferrals have started. The arrangement must be in writing beforehand. Treating a DSLP as a funded or registered arrangement. The employer holds the money and the employee is an unsecured creditor. Looking for a pension adjustment. A DSLP is not a pension plan and generates none. Drafting the plan only for the successful case, leaving no documented treatment for illness, layoff, death or resignation. Assuming any departure automatically collapses the arrangement — the treatment depends on the circumstance and should be confirmed.

What to verify this tutorial against

This was drafted without a source document. Every condition stated here is the basis on which the arrangement escapes immediate taxation, so confirm each one against the Regulations before relying on it. The Income Tax Regulations prescribe the exception from the salary deferral arrangement rules and set out the conditions — the maximum proportion of salary that may be deferred, the maximum deferral period, the minimum leave, the reduced minimum for educational leave, and the return-to-work requirement. That is the authoritative source and it should be read directly rather than summarised. The Income Tax Act provisions on salary deferral arrangements set out the treatment that applies when the exception does not, which is what is at stake if a condition fails. CRA's guidance on salary deferral arrangements and deferred salary leave plans covers the administrative treatment, including the annual inclusion of interest and the treatment of arrangements that end early. The employers' guide to payroll deductions and remitting covers the source deduction treatment of the deferred salary when paid and of amounts included annually, and the pensionable and insurable earnings questions. CRA interpretation documents address specific DSLP scenarios — illness, layoff, death, and early termination — more directly than the general guidance, and are worth seeking out for a live situation. The plan's own written terms govern the arrangement between employer and employee, and must satisfy the prescribed conditions on their face.

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