Do Common-Law Partners Qualify for Income Splitting in Canada?

Yes — common-law partners can qualify for several retirement income-splitting strategies in Canada. However, the rules depend on what type of income you are talking about. CRA pension income splitting and Canada Pension Plan (CPP) pension sharing are two different mechanisms, each with its own eligibility requirements.

This distinction is important because "income splitting" is often used as a catch-all term. In reality, a couple might use pension income splitting for eligible pension income, CPP pension sharing for CPP retirement pensions, or other strategies such as spousal RRSP contributions during their working years.

Understanding these differences can help common-law couples plan retirement income more effectively and determine how their combined after-tax income could change under different strategies.

What Does the CRA Consider "Common Law"?

For many Canadian tax purposes, the CRA considers you to have a common-law partner when you are living in a conjugal relationship and meet one of its prescribed conditions.

The most common test is living together in a conjugal relationship for at least 12 continuous months. There are also circumstances where you are considered common law sooner because you are the parent of a child together, or because one partner has custody and control of a child who is wholly dependent on that partner.

Once you meet the CRA definition, your marital status should be reported accordingly. For many tax purposes, the CRA uses your marital status at the end of the tax year, including December 31, when determining eligibility for various benefits, credits, and tax provisions.

The exact definition can vary somewhat depending on the program, so it is important not to assume that every federal benefit uses identical rules.

Can Common-Law Partners Split Retirement Income?

Yes. A qualifying common-law couple can use pension income splitting under the same general rules that apply to married couples.

CRA allows eligible pension income to be allocated between spouses or common-law partners through a joint election. Up to 50% of eligible pension income can generally be allocated to the other partner.

Both partners must agree to the election and complete the required tax information. The election is made for each tax year, so the amount split does not have to be the same every year.

Not all retirement income qualifies. The type of pension, the age of the person receiving it, and other circumstances can affect whether income is eligible.

What Types of Income Can Be Split?

This is where retirement income planning gets more complicated. You cannot simply take any source of household income and move half of it to the other partner's tax return.

Depending on the circumstances, eligible pension income can include certain payments from:

• Registered pension plans
• Life annuities from eligible pension arrangements
• RRIFs when the applicable age requirements are met
• Other qualifying pension income recognized by the CRA

Some important retirement income sources do not qualify for CRA pension income splitting. For example, CPP and OAS are not eligible pension income for the CRA pension income-splitting election.

CPP has its own pension-sharing mechanism, which is separate from CRA pension income splitting.

A Simple Pension-Splitting Example

Imagine Dana, age 67, receives $48,000 per year from an eligible defined benefit pension. Casey, age 66, has $8,000 of other taxable income.

If Dana and Casey make an eligible pension-income-splitting election for $24,000, representing 50% of Dana's eligible pension income, the pension income reported for tax purposes would be allocated between them.

• Dana: $24,000 of the pension remains allocated to Dana
• Casey: $24,000 of the pension is allocated to Casey, in addition to Casey's other income

The household has not created additional income. The election simply changes how eligible pension income is allocated between the two tax returns.

Because Canadian income tax rates are progressive, shifting eligible income from a higher-income partner to a lower-income partner can sometimes reduce the household's combined income tax. But the result depends on the couple's complete tax situation, including credits, benefits, provincial taxes, and other income.

Common-Law vs Married: Are the Rules Different?

For pension income splitting, qualifying common-law partners can generally use the same basic mechanism as married couples.

There are still several details to watch.

• Relationship status: You must meet the applicable CRA definition of a common-law partner.
• December 31 status: Your marital status at the end of the tax year can affect eligibility for various tax provisions and benefits.
• Living separately: Pension income splitting has specific rules concerning couples who are living separate and apart because of a relationship breakdown.
• Canadian residency: Pension income-splitting rules include residency requirements for the partners.
• Eligible income: Not every source of retirement income can be split through the CRA pension income-splitting election.

Pension Income Splitting: How Does It Work?

Pension income splitting is an election made by the two partners on their tax returns. The transferring partner reports the full eligible pension income and claims a deduction for the elected split amount. The receiving partner reports the elected amount as pension income.

The maximum amount that can generally be allocated is 50% of the transferring partner's eligible pension income.

Both partners must agree to the election. The election is made for the particular tax year, which means couples can reassess the strategy each year rather than being permanently locked into a particular percentage.

For example, a couple could split 50% of eligible pension income one year and choose a smaller percentage the following year if their other sources of income change.

See our related article on what income can be split between spouses in Canada.

CPP Pension Sharing Is Different

CPP pension sharing is not the same as CRA pension income splitting.

A married or common-law couple can apply to Service Canada to share CPP retirement pensions if they meet the applicable requirements. The sharing arrangement can redistribute CPP retirement pension amounts between the partners.

If both partners contributed to CPP, the couple may be able to share portions of both pensions. The combined amount of the two CPP retirement pensions does not increase simply because the couple chooses pension sharing.

CPP pension sharing can potentially reduce taxes by moving some taxable CPP income from one partner to the other, but the application is handled through Service Canada rather than through CRA's pension-income-splitting election.

CPP pension sharing also has its own eligibility and termination rules. It generally requires the partners to be living together, and the arrangement can end in circumstances such as separation or death.

For more information, see our article on pension income splitting.

What About Spousal RRSPs?

Spousal RRSPs are another retirement-income strategy that can help couples balance future taxable retirement income.

A higher-income spouse or common-law partner can contribute to a spousal RRSP for the lower-income partner, subject to the contributor's available RRSP contribution room and the applicable rules.

The goal is not simply to move money from one partner to another. Instead, spousal RRSPs can help create a more balanced distribution of retirement assets over time.

Withdrawals from a spousal RRSP can also be subject to attribution rules in certain circumstances, so couples should understand those rules before making a contribution or withdrawal decision.

When Can Income Splitting Be Useful?

Income splitting can be particularly relevant when one partner has substantially more taxable retirement income than the other.

For example, one partner might receive:

• A large defined benefit pension
• RRIF income
• Investment income
• Employment income

while the other partner might have relatively little taxable income.

Allocating eligible pension income between the partners can sometimes make their taxable incomes more balanced and reduce the household's combined tax.

However, the effect is not always simply "more income splitting equals less tax." The election can interact with tax credits, income-tested benefits, and other provisions.

Could Income Splitting Affect OAS?

Potentially—but this needs to be analyzed carefully.

Old Age Security (OAS) recovery tax is based on an individual's income, not simply the couple's combined income. Changing the amount of taxable income reported by each partner can therefore affect whether either person crosses an applicable OAS recovery threshold.

However, pension income splitting does not automatically eliminate an OAS recovery tax. The result depends on each person's complete income and tax situation.

Similarly, income-tested programs such as the Guaranteed Income Supplement (GIS) have their own rules. A strategy that reduces one person's taxable income can have different consequences depending on the household's circumstances.

This is one reason it is useful to model the entire household rather than looking only at the immediate tax saving from a pension split.

Practical Checklist for Common-Law Couples

1. Confirm when you became common law under the applicable CRA rules.
2. Identify all retirement income sources for both partners.
3. Separate income that qualifies for CRA pension income splitting from income that does not.
4. Determine whether CPP pension sharing is appropriate and whether you meet Service Canada's requirements.
5. Consider whether a spousal RRSP could help balance future retirement income.
6. Model federal and provincial taxes for both partners.
7. Consider how different income allocations could affect OAS recovery tax and income-tested benefits.
8. Reassess the strategy each tax year because income and circumstances can change.

Fun Facts About Common-Law Retirement Planning

FAQ: Common-Law Income Splitting in Canada

Do we need to be legally married to split pension income?

No. A qualifying common-law partner can participate in CRA pension income splitting. You must meet the applicable requirements and the income being split must be eligible.

Can we split 50% of all our retirement income?

No. The 50% limit applies to eligible pension income under the CRA pension income-splitting rules. Different retirement income sources have different tax treatments.

Is CPP pension sharing automatic?

No. CPP pension sharing requires an application through Service Canada and has its own eligibility requirements.

Does income splitting always reduce our taxes?

No. It can reduce combined income tax in some situations, particularly when one partner has substantially higher taxable income, but the result depends on the couple's complete tax and benefit situation.

Can we choose a different amount each year?

Yes. CRA pension income splitting is an annual election, so the amount allocated can be different from one tax year to another, subject to the applicable rules.

Conclusion

Common-law partners in Canada can access important retirement income-splitting strategies, but it is important to distinguish between them.

CRA pension income splitting allows qualifying couples to allocate up to 50% of eligible pension income between them. CPP pension sharing is a separate Service Canada process that can redistribute CPP retirement pension income between eligible spouses or common-law partners.

The potential benefit goes beyond simply lowering this year's tax bill. Proper retirement-income planning considers taxes, OAS recovery tax, income-tested benefits, government pensions, registered accounts, and the timing of withdrawals across the entire retirement.

Retirementize can help you model your household's retirement income and compare different combinations of pensions, government benefits, investments, taxes, and retirement spending.

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