Should You Pay Down Debt or Contribute to an RRSP? – A Tax-Focused Guide by a Montreal CPA Firm Near You

Many Canadians struggle with the question of whether they should pay down debt or

contribute to an RRSP. With rising interest rates, increasing household debt, and

growing pressure to save for retirement, this decision has become more important than

ever. Choosing incorrectly can cost thousands of dollars in taxes, interest, or lost

investment growth. The right choice depends on income level, tax bracket, debt interest

rates, cash flow, and long-term financial goals. A tax-focused perspective is essential

because RRSP contributions reduce taxable income immediately, offering a larger

refund that can be reinvested or used to pay down debt. However, if debt carries high

interest, delaying repayment may outweigh the tax benefits. This guide provides a

comprehensive analysis of whether Canadians should pay down debt or contribute to

an RRSP, using CRA rules, tax planning strategies, and real-life examples to illustrate

the best choices for different financial situations.

Legal and Regulatory Framework

The tax advantages of RRSP contributions are outlined in section 146 of the Income

Tax Act. RRSP contributions reduce taxable income, generating a tax refund based on

the taxpayer’s marginal tax rate. RRSP room accumulates annually and carries forward

indefinitely. Investment growth inside an RRSP is tax-deferred until withdrawal, typically

during retirement when income is lower. Meanwhile, debt repayment decisions depend

on contractual obligations governed by loan agreements, credit legislation, and interest

rate structures. High-interest debt—such as credit cards—can exceed 20%, creating a

financial burden that no RRSP refund can offset. Mortgage interest is generally non-

deductible in Canada, making mortgage repayment a long-term cash-flow consideration

rather than a tax strategy. These legal rules and tax principles form the foundation for

understanding whether you should pay down debt or contribute to an RRSP in Canada.

Key Court Decisions

While no court case directly decides whether taxpayers should pay down debt or

contribute to an RRSP, relevant jurisprudence highlights how CRA views RRSP

contributions and financial planning behaviour. In McLeod v. Canada, the Tax Court

confirmed that taxpayers are responsible for managing RRSP contribution limits

responsibly, reinforcing the importance of strategic planning. In Wang v. The Queen,

CRA successfully denied an RRSP overcontribution deduction, demonstrating that

improper planning can have costly tax consequences. In Bouchard v. Canada, the court

reinforced that unpaid debt can lead to garnishment and enforcement actions,

highlighting the financial risks of letting debt accumulate. These cases reinforce the

need for careful evaluation before deciding whether to contribute to an RRSP or pay

down debt.

Why CRA Targets This Issue

CRA does not typically target personal financial decisions, but it closely monitors RRSP

contribution behaviour because improper contributions, overcontributions, and incorrect

deductions lead to errors on tax returns. CRA ensures taxpayers do not exceed RRSP

limits and assesses penalties on excess contributions. CRA also evaluates whether

RRSP deductions claimed align with income levels and contribution limits on the Notice

of Assessment. Additionally, taxpayers who rely on RRSP refunds to service ongoing

debt must ensure that refunds are calculated correctly and not based on inaccurate tax

assumptions. Because financial stress often results in rushed or incorrect tax filings,

CRA reviews returns where RRSP contributions appear inconsistent with income, debt

patterns, or previous filing history. While CRA does not enforce debt decisions,

taxpayers must understand the tax implications when choosing whether to pay down

debt or contribute to an RRSP.

Mackisen Strategy

At Mackisen CPA Montreal, we help clients determine whether paying down debt or

contributing to an RRSP offers the best financial advantage. Our strategy begins by

analyzing each type of debt the taxpayer holds—credit cards, lines of credit, mortgages,

car loans—and comparing the interest rates with the taxpayer’s marginal tax rate. If

debt interest is high, we generally recommend prioritizing repayment while still making

strategic RRSP contributions to generate targeted tax refunds. For clients in high tax

brackets, we evaluate the tax savings from RRSP contributions relative to investment

growth potential and long-term retirement goals. We model various scenarios: using the

RRSP refund to pay down debt, splitting contributions over several years, or combining

debt repayment with RRSP strategies. We also ensure contributions align with CRA

limits and long-term retirement needs. Our tailored approach ensures clients make

financially and tax-efficient decisions.

Real Client Experience

A client earning a high income with a 48% marginal tax rate asked whether to pay down

their line of credit at 7% interest or contribute to an RRSP. We calculated that an RRSP

contribution would generate a large refund but that using the refund immediately to

reduce the debt produced the strongest combined benefit. In another case, a client had

significant credit card debt at 19% interest. We advised prioritizing debt repayment

because no RRSP tax refund could offset the high interest charges. For a third client

nearing retirement with a low mortgage rate and minimal debt, maximizing RRSP

contributions provided the best financial outcome. These examples illustrate that the

choice between paying down debt or contributing to an RRSP depends entirely on

individual circumstances.

Common Questions

Many taxpayers ask whether it is better to contribute a small amount to an RRSP just to

receive a refund. The answer depends on income level and debt interest rates. Others

ask whether RRSP contributions can hurt cash flow. Contributions reduce disposable

income temporarily but can increase refunds significantly. Taxpayers often wonder

whether they should use their RRSP refund to pay down debt. Using the refund for high-

interest debt is often the best hybrid strategy. Another common question is whether

young taxpayers with low income should contribute to RRSPs. Often they should not, as

their refund will be small; a TFSA may be better until their income increases. These

questions show why a tax-driven analysis is essential when deciding whether to pay

down debt or contribute to an RRSP.

Why Mackisen

With more than 35 years of combined CPA experience, Mackisen CPA Montreal helps

Canadians stay compliant while making smart financial decisions that reduce taxes and

debt. Whether you are evaluating high-interest debt, maximizing RRSP contributions, or

creating a hybrid repayment strategy, our expert team ensures precision, transparency,

and protection from audit risk.