How to File Taxes After Divorce in Canada
Key Takeaways
- 1Understanding how to file taxes after divorce in canada is crucial for financial success
- 2Professional guidance can save thousands in taxes and fees
- 3Early planning leads to better outcomes
- 4GTA residents have unique considerations for tax planning
- 5Taking action now prevents costly mistakes later
Quick Summary
This article covers 5 key points about key takeaways, providing essential insights for informed decision-making.
You finalized your divorce in 2025. Now you're staring at your tax return wondering: Do I file as single or married? Can I claim the kids? What about spousal support?
Filing taxes after divorce in Canada is more complicated than just changing your marital status. Your filing status, eligibility for credits, and tax obligations all change — and getting it wrong can cost you thousands. Here's exactly how to file your taxes after separation or divorce, what changes, and how to avoid costly mistakes.
Important Deadline
You must update your marital status with the CRA within 30 days of your separation or divorce. This affects your eligibility for GST/HST credits, Canada Child Benefit, and other benefits.
When to Change Your Marital Status with the CRA
You must update your marital status with the CRA within 30 days of your separation or divorce.
How to Update
- 1. Log into CRA My Account
- 2. Select "Marital Status"
- 3. Change to "Separated" or "Divorced"
- 4. Enter the date you separated (the day you started living apart)
Separated vs. Divorced: What's the Difference for Taxes?
For tax purposes, you're considered separated as soon as you start living separate and apart — even if your divorce isn't finalized.
- Separated: You and your spouse live apart with the intention to live apart permanently (or for at least 90 days)
- Divorced: Your divorce is legally finalized
Example: Separation Date Matters
You separated on November 15, 2025. Your divorce was finalized in March 2026. For your 2025 tax return (filed in spring 2026), you file as "separated" as of November 15, 2025. For your 2026 tax return, you file as "divorced."
Claiming Dependants and the Eligible Dependant Credit
If you're separated or divorced and have a child living with you, you may be able to claim the Eligible Dependant Credit (also called the "equivalent-to-spouse" credit).
Eligible Dependant Credit (Line 30400)
- • Amount: Up to $15,705 (2026)
- • Tax savings: $2,356 federal + ~$566 provincial (Ontario) = $2,922 total
- • Who qualifies: Single, separated, divorced, or widowed supporting a dependant under 18
- • Restriction: You cannot receive child support for that child
Have questions about your specific situation?
Get Free Expert AdviceSpousal Support: Who Pays Tax?
Spousal support (also called alimony) has specific tax rules:
Spousal Support Is Taxable and Deductible
- •Payer: You deduct spousal support payments from your income (Line 21999 or 22000)
- •Recipient: You report spousal support as taxable income (Line 12800)
Example: Spousal Support Deduction
You pay $2,000/month in spousal support ($24,000/year). You earn $120,000.
- • You deduct $24,000 from your income → taxable income is now $96,000
- • At a 30% marginal rate, that's $7,200 in tax savings
Your ex-spouse receives $24,000 in spousal support and must report it as income. If they're in a lower tax bracket (say 20%), they pay $4,800 in tax.
Requirements for Spousal Support to Be Deductible
For spousal support to be tax-deductible, it must meet these criteria:
- Paid under a court order or written agreement
- Paid periodically (monthly, quarterly, etc.) — not a lump sum
- Paid for the support of your ex-spouse (not for child support or property settlement)
Lump-Sum Payments Are Not Deductible
A one-time $50,000 settlement is not deductible and not taxable. Only periodic payments qualify.
Child Support Is Tax-Free
Unlike spousal support, child support is not taxable or deductible:
- • Payer: You cannot deduct child support payments
- • Recipient: You do not report child support as income
Example: You pay $1,500/month in child support ($18,000/year). This has no effect on your taxes.
Dividing RRSP and Pension Assets Without Tax
When you divorce in Ontario (or most provinces), you split assets accumulated during the marriage — including RRSPs and pensions. Normally, withdrawing from an RRSP triggers tax. But there's an exception for divorce.
RRSP Transfer Under a Court Order (Form T2220)
If your separation agreement or court order requires you to transfer RRSP funds to your ex-spouse, you can do it tax-free by filing Form T2220.
The transfer must be made directly between RRSPs. If you withdraw the funds yourself and then give them to your ex, you'll pay full tax on the withdrawal.
Who Claims the Kids? (CCB, Childcare, Medical)
Canada Child Benefit (CCB)
Who gets it: The parent with primary custody (the child lives with them more than 50% of the time).
If you share custody 50/50, you can both receive 50% of the CCB. Both parents must apply separately and indicate shared custody.
Income-based: Your CCB is calculated based on your income alone (not your ex-spouse's income). Learn more in our CCB guide.
Childcare Expense Deduction
Who claims it: The lower-income parent must claim childcare expenses, unless the higher-income parent had primary custody for part of the year.
Common Tax Mistakes After Divorce
1. Not Updating Your Marital Status with the CRA
If you don't update your status within 30 days, you may receive benefits you're not entitled to (or miss out on benefits you qualify for).
2. Claiming the Same Child for Multiple Credits
If you share custody 50/50, you can't both claim the Eligible Dependant Credit for the same child. Decide who claims it, or alternate years.
3. Deducting Lump-Sum Spousal Support
Only periodic payments (monthly, quarterly) are deductible. A one-time lump-sum payment is not deductible.
4. Withdrawing RRSP Funds Without Using Form T2220
If you withdraw RRSP funds to give to your ex without using Form T2220, you'll pay full tax on the withdrawal.
Navigating Divorce and Finances
Divorce is one of the most financially disruptive life events. Our specialists help people rebuild their financial plans after separation — including tax optimization, asset division strategies, and long-term income planning.
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