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Published: December 28, 2021

Last Updated: December 28, 2021

RRSP Background – RRSP Double Taxation from Overcontribution

Registered retirement savings plans (RRSPs) are a tax efficient method of investment for individuals created by the government to encourage Canadians to save for retirement. 

The basic structure of an RRSP is that a financial institution (the issuer) holds investments in trust (the RRSP) for an individual with whom the issuer has a contract or arrangement that meets certain requirements. When the individual makes eligible contributions to the RRSP, then the individual receives an income tax deduction in the same amount as the contribution. The individual is called the “controlling individual” of the RRSP. The RRSP can then invest the contributions into various types of investments. RRSPs are not allowed to own certain “non-qualifying” or “prohibited” investments. For example, cryptocurrencies cannot be held in a RRSP directly, although it is possible to hold them in a RRSP indirectly through an exchange traded fund or similar securities. 

The RRSP itself is exempt from income tax. When the individual eventually withdraws funds from the RRSP, the individual has an income inclusion for the amount of the funds withdrawn. This means that RRSPs functionally allow individuals to invest with “pre-tax income” and have their investments compound tax free until withdrawal. 

RRSP contribution room is determined by an individual’s “earned income”, which among other things includes employment income or business income earned while a tax resident of Canada. Taxpayers can contribute to their RRSPs until December 31 of the year in which they turn 71 years old. Individuals are also required to collapse their RRSPs by December 31 of the year they turn 71. The main options are transferring your RRSP to a registered retirement income fund (RRIF) on a tax deferred basis, purchasing eligible annuities on a tax deferred basis, or withdrawing the funds and having an income inclusion. A RRIF operates in a similar manner to an RRSP, but it requires the beneficiary of the RRIF to withdraw a minimum amount every year.

A taxpayer who contributes more than their deduction limit permits to their RRSPs will have an excess contribution. Excess contributions that exceed the taxpayer’s RRSP deduction limit by more than $2,000 are subject to tax of 1% monthly, unless the taxpayer (1) withdrew the excess amounts, or (2) contributed to a qualifying group plan. Taxpayers who made excess contributions into their RRSPs must pay the 1% tax within 90 days after the calendar year (during which the excess contributions were made) to avoid potential late filing penalties and interest charges. The CRA allows a $2,000 grace amount for over contributions into RRSPs. However, this amount is not tax deductible.

How Double Taxation can Arise from RRSP Contributions – RRSP Double Taxation from Overcontribution

In addition to the excess contribution tax briefly described above, another problem can arise when amounts are contributed to an RRSP where no deduction is claimed (or where deductions claimed are subsequently denied). By default, all withdrawals from an RRSP result in a corresponding income inclusion in the year the amount is withdrawn. This gives rise to the possibility that an individual could contribute an amount to an RRSP without getting a deduction, then withdraw it and have to pay tax that results from the withdrawal income inclusion for that amount. This effectively leads to the taxpayer having an income inclusion from when they earned the relevant amount plus again for when they withdrew the amount from their RRSP without first getting the offsetting deduction that normally results in the investing with “pre-tax” amounts treatment that RRSPs are intended to create. 

The sort of issue normally arises when a taxpayer inadvertently overcontributes to his or her RRSP or when the taxpayer’s “earned income” (and therefor the taxpayer’s contribution room) is revised or disputed. One reason this can happen is when a taxpayer falls behind on filing their annual tax returns and is therefore not aware of what their true contribution limit is. 

Relief through an Offsetting Deduction – RRSP Double Taxation from Overcontribution

Taxpayers removing funds from their RRSPs for which no contribution deduction was available may be able to claim a deduction intended to offset the income inclusion they will have when they withdraw the funds. If available, the taxpayer should claim the deduction on their annual income tax return for the tax year in which they made the withdrawal. 

In order to claim the offsetting deduction, the withdrawal from the RRSP must be made 

  1. In the year in which the contributions were made by the taxpayer,
  2. In the year in which the notice of assessment or reassessment for the year of contribution was sent to the taxpayer, or
  3. In the year immediately following either on of the years referred to above.

It is therefore extremely important to make the withdrawal in a year where it will enable the offsetting deduction to be available. Usually, the best approach will be to try to make the withdrawal in the same year as the contribution or in the following year. If that window of opportunity is missed, the taxpayer should consult an experienced Canadian tax lawyer regarding their options for trying to obtain a new notice of assessment or reassessment for the year the contribution was made. 

In addition there is an anti-avoidance rule which species that an offsetting deduction is not allowed when it is reasonable to consider that:

  1. the taxpayer did not reasonably expect to be able to deduct the full amount of the contributions in the year in which the contributions were made or in the immediately preceding year, and
  2. the taxpayer made all or part of the contributions with the intent of later withdrawing them and claiming an offsetting deduction.



Pro Tax Tips – RRSP Double Taxation from Overcontribution

If you have overcontributed to your RRSP and are at risk of this form of double taxation it is essential to consult with an experienced Toronto tax lawyer to minimize your liability. If you are not eligible for the offsetting deduction, it may be possible to obtain interest and penalty relief with respect to the income inclusion through a taxpayer relief application.


"This article provides information of a general nature only. It is only current at the posting date. It is not updated and it may no longer be current. It does not provide legal advice nor can it or should it be relied upon. All tax situations are specific to their facts and will differ from the situations in the articles. If you have specific legal questions you should consult a lawyer."


A Registered Retirement Savings Plan effectively allows individuals to contribute funds to a special account, up to a contribution limit, and invest the funds on a tax deferred basis. Specifically, individuals can get a deduction from their income when they contribute to the account and income earned in the account is exempt from income tax. When amounts are eventually withdrawn from the account, the full amount of each withdrawal is included in the individual’s income.

All withdrawals from an RRSP result in an income inclusion. If a contribution was made to an RRSP in a situation where the taxpayer cannot claim the normal RRSP deduction, then when the taxpayer withdraws the amount, they will have an income inclusion for the withdrawal despite not having received the RRSP deduction when they contributed the amount. This means that this amount is effectively being double taxed since the taxpayer needs to report the amount when it was earned and also the amount when it was withdrawn from the RRSP. Relief in the form of an offsetting deduction may be available.

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