
In Canada, common-law couples are treated the same as married couples for tax purposes. Unlike in the US, Canadian tax rules require each individual to file their own tax return, indicating their marital status and their spouse's name. If you are in a common-law relationship, defined as when two people live together in a conjugal relationship for 12 months or immediately if they have a child together, you must file as common law. This means that you and your partner must disclose your relationship status, their name, social insurance number, and net income on your return. While filing as common law may unlock certain tax credits and benefits, there may also be disadvantages, such as losing some tax credits available to single filers.
| Characteristics | Values |
|---|---|
| Definition of common-law partner | A person with whom you live in a conjugal relationship who is not your spouse, and has been living with you at least 12 continuous months (including any period you were separated for less than 90 days because of a breakdown in the relationship) OR is the parent of your child by birth or adoption OR has custody and control of your child |
| Filing process | Each Canadian files their own tax return and indicates their marital status and who they are married to/living with on the return |
| Information to include | Name, social insurance number and net income of partner |
| Benefits | Access to enhanced credits and benefits, such as the Goods and Services Tax (GST)/Harmonized Sales Tax (HST) credit, the Canada Child Benefit, and the spousal amount tax credit |
| Drawbacks | Loss of certain tax credits available to single filers, increased obligation for accuracy in reporting |
| Separation | To be considered officially separated by the CRA, partners need to be apart for at least 90 days |
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What You'll Learn

Common-law relationship definition
In Canada, common-law partners are defined as two individuals who live together in a conjugal relationship and have lived together for at least 12 consecutive months. This definition includes any period where the couple was separated for less than 90 days due to a breakdown in the relationship. Alternatively, if the couple has a child together, they are immediately considered common-law partners.
The definition of a common-law partner under the federal Income Tax Act is as follows: "A person with whom you live in a conjugal relationship who is not your spouse, and he or she: has been living with you at least 12 continuous months (includes any period you were separated for less than 90 days because of a breakdown in the relationship); OR is the parent of your child by birth or adoption; OR has custody and control of your child (or had custody and control immediately before the child turned 19 years of age) and your child is wholly dependent on this person for support".
It is important to note that, in Canada, common-law partners are treated the same as married couples for tax purposes. If you meet the definition of a common-law partner, you must indicate this on your tax return and include your partner's name, social insurance number, and net income. Both partners must file their own tax returns with the Canada Revenue Agency (CRA) and disclose their relationship status and financial information.
Understanding the tax implications of common-law status is crucial for financial planning. Common-law status may unlock access to certain tax credits and benefits, such as the Goods and Services Tax (GST)/Harmonized Sales Tax (HST) credit and the spousal amount tax credit. However, there may also be complexities and increased obligations for accuracy in reporting both partners' incomes.
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Individual tax returns
In Canada, tax returns are filed individually, regardless of marital status. This means that each person must submit their own tax return, indicating their marital status and the name of their spouse or common-law partner. Common-law partners are defined as two people who have lived together in a conjugal relationship for at least 12 months, or immediately if they have a child together. It is important to note that the Canadian Revenue Agency (CRA) may consider you a common-law couple even if you and your partner do not personally identify as such.
When filing taxes as a common-law couple, it is important to correctly mark your relationship status as "common-law" on your tax return and to update your status with the CRA. You must also include your partner's income, especially when claiming credits like the Spousal Amount, or applying for benefits based on household income. Couples must report their common-law status and their partner's income on their separate returns. This is because the CRA determines government credits and benefits based on household income. By filing as a couple, you can transfer certain credits to your partner, as long as you don't need them first. These include any unused credits, combining certain expenses, and splitting pension income.
Additionally, certain deductions, such as medical expenses or charitable donations, may be optimized by claiming them on your partner's tax return if they have a lower taxable income. For example, if you or your spouse incurs medical expenses, you may be able to claim a tax credit if these expenses exceed 3% of your net income or $2,759, whichever is lower. Similarly, couples can benefit from combining charitable donations and medical expenses.
It is worth noting that there are some disadvantages to filing taxes as a common-law partnership. You may no longer be eligible for certain tax credits, including the GST/HST credit, Canada Child Benefit, Guaranteed Income Supplement, and Working Income Tax Benefit. You will also only be able to claim one exemption from capital gains on your primary residence.
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Relationship status changes
If your marital status has changed during the tax year, you must report this to the Canada Revenue Agency (CRA). This includes if you got married, entered into a common-law partnership, separated, You may want to see also In Canada, tax returns are filed individually, regardless of marital status. However, your marital status does offer potentially significant benefits for tax purposes. If you are in a common-law relationship, you must indicate this on your tax return. You and your partner must each file your own tax return with the Canada Revenue Agency (CRA), including your partner's name, social insurance number, and net income. It is important to note that while there are benefits to filing taxes as a common-law couple, there may also be some disadvantages. For example, you may no longer be eligible for certain credits and benefits, such as the GST/HST credit, Canada Child Benefit (CCB), and the Working Income Tax Benefit. Additionally, your combined household income may affect your eligibility for certain programs like the GST/HST credit, CCB, and CWB. You may want to see also In Canada, tax returns are filed individually, regardless of marital status. However, when filing as a common-law couple, you must indicate your marital status and include your partner's income and social insurance number. There are several tax deductions and benefits available to common-law couples in Canada. These include: It is important to note that filing as a common-law couple may also reduce eligibility for certain benefits, such as the GST/HST credit and the Canada Child Benefit. Additionally, there may be tax implications in the event of a breakup. You may want to see also A common-law partner in Canada is defined as "a person with whom you live in a conjugal relationship who is not your spouse, and he or she: has been living with you at least 12 continuous months (including any period you were separated for less than 90 days because of a breakdown in the relationship); OR is the parent of your child by birth or adoption; OR has custody and control of your child (or had custody and control immediately before the child turned 19 years of age) and your child is wholly dependent on this person for support". In Canada, each individual must file their own tax return. If you are in a common-law relationship, you must indicate this on your tax return and include your partner's name, social insurance number, and net income (even if it is zero). Common-law status may unlock eligibility for certain tax credits and benefits not available to single filers, such as the Goods and Services Tax (GST)/Harmonized Sales Tax (HST) credit, the Canada Child Benefit, and the spousal amount tax credit. Common-law couples can also benefit from income splitting opportunities and combining medical expenses to surpass the minimum threshold required for claiming these expenses on their tax return. If your common-law relationship ends, you must notify the Canada Revenue Agency (CRA) that your marital status has changed to "separated" once you have been separated for at least 90 days.Can Ex-Felons Practice Law? Redemption and Legal Practice
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