Filing taxes during divorce in New Brunswick is governed by federal Canada Revenue Agency (CRA) rules, not provincial law. The CRA considers you separated after living apart for 90 consecutive days, after which your separation date applies retroactively to day one. Spousal support is tax-deductible to the payer; child support is not. The eligible dependant credit is tied to the basic personal amount (~$16,452 for 2026).
Key Facts: Divorce and Taxes in New Brunswick (2026)
| Factor | Detail |
|---|---|
| Filing Fee (divorce petition) | $110 total ($100 petition + $10 Clearance Certificate) under N.B. Rules of Court Rule 72.24 |
| Waiting Period (CRA separation) | 90 consecutive days living separate and apart |
| Residency Requirement (to divorce) | One spouse ordinarily resident in New Brunswick for 1 year, Divorce Act s. 3(1) |
| Grounds for Divorce | One-year separation, adultery, or cruelty, Divorce Act s. 8 |
| Property Division Type | Equal division of marital property under the Family Law Act, SNB 2020, c. 23 |
| Spousal Support | Deductible to payer, taxable to recipient (CRA lines 21999/22000) |
| Child Support | Not deductible to payer, not taxable to recipient (post-May 1997) |
| Eligible Dependant Amount | ~$16,452 for 2026 (CRA line 30400) |
This guide explains how separation and divorce affect your tax filing status, support payment deductions, dependant credits, and benefit recalculations in New Brunswick. It covers the critical distinction between family law timelines and CRA tax timelines, which frequently confuses people navigating a separation.
When Are You Considered Separated for Tax Purposes in New Brunswick?
The CRA considers you separated for tax purposes once you have lived separate and apart from your spouse or common-law partner for 90 consecutive days because of a relationship breakdown. The effective separation date then applies retroactively to the first day you began living apart. If you separate on January 1, you are officially separated in the CRA's eyes on April 1, but your recognized date remains January 1.
This 90-day rule is one of the most misunderstood aspects of filing taxes during divorce in New Brunswick. The federal Divorce Act requires a full one-year separation before a court grants a divorce, but the CRA only requires 90 days to change your tax status. These are two separate timelines serving two separate purposes. The family law one-year period determines when you can finalize a divorce; the CRA 90-day period determines your tax filing status and benefit eligibility.
If you reconcile during the 90-day window, the clock resets entirely. A reconciliation on day 60 means you must start a fresh 90-day count if the relationship breaks down again. Periods of separation lasting fewer than 90 days do not count for CRA purposes and do not interrupt your marital or common-law status.
Reporting Your Marital Status Change to the CRA
You must notify the CRA of a separation by the end of the month following the month your 90-day separation period completes, but you must not report it until the 90 days have fully passed. You can update your status three ways: through CRA My Account online, by completing Form RC65 (Marital Status Change), or by mailing the form to your tax centre. No court order, lawyer, or separation agreement is required to update your status; you self-report the date the relationship ended.
Updating your status triggers an automatic household income recalculation. Because your former partner's income is no longer combined with yours, your individual household income typically drops, which may newly qualify you for the Canada Child Benefit (CCB), the GST/HST credit, and the New Brunswick Harmonized Sales Tax Credit. The CRA generally takes one to two months to recalculate benefits and issue a Notice of Redetermination, with any increased payments backdated to the month your separation actually occurred.
What Tax Filing Status Should You Use During a New Brunswick Divorce?
Your tax filing status depends on your marital situation as of December 31 of the tax year. For 2025 returns filed in 2026, you tick the box reflecting your status on December 31, 2025: married, living common-law, separated, divorced, widowed, or single. Canada does not have joint tax returns, so each spouse always files an individual return regardless of marital status.
Unlike the United States, Canada has no "married filing jointly," "married filing separately," or "head of household" filing categories. Every Canadian taxpayer files independently. Concepts such as married filing separately divorce status or head of household divorce status are American constructs and do not apply in New Brunswick. However, your reported marital status still affects credits, benefits, and the way the CRA calculates your eligibility for income-tested programs.
The "separated" status applies only after you have lived apart for 90 days due to a relationship breakdown. The "divorced" status applies only once a court grants your divorce judgment. Between the date you separate and the date your divorce is final, you generally report "separated" for the tax years in question. Claiming dependents during divorce and support deductions are governed by your status on December 31, so timing your status changes carefully can materially affect your tax outcome.
Filing Deadlines for the Year of Separation
The standard personal tax filing deadline is April 30 of the following year. For your 2025 return, the deadline is April 30, 2026. If you or your spouse or common-law partner was self-employed during 2025, the filing deadline extends to June 15, 2026, although any balance owing is still due by April 30, 2026. These deadlines remain the same whether you file as married, separated, or divorced.
How Is Spousal Support Taxed in a New Brunswick Divorce?
Spousal support is tax-deductible to the payer and taxable as income to the recipient, provided it is paid periodically under a written agreement or court order. The payer deducts the amount on line 22000 of their return, and the recipient reports it on line 12800. This treatment often reduces the family's combined tax burden when the payer is in a higher tax bracket than the recipient.
For spousal support to be deductible, four CRA conditions must be met: the payments must be periodic (typically monthly), the recipient must have discretion over how to use the funds, the spouses must be living separate and apart, and the amount must be payable under an order of a competent tribunal or a written agreement. Lump-sum payments made to release future support liability are neither deductible to the payer nor taxable to the recipient, which is a critical planning point in negotiating settlements.
You must report the total of all support payments on line 21999 and the deductible spousal portion on line 22000. Using the CRA's standard example: a payer who pays $1,000 per month in child support and $500 per month in spousal support pays $18,000 total for the year. They enter $18,000 on line 21999 and only $6,000 (the spousal portion) on line 22000 as deductible. You should register your court order or written agreement with the CRA and retain proof of payment, such as cancelled cheques or bank statements.
How Is Child Support Taxed in a New Brunswick Divorce?
Child support is not deductible to the payer and not taxable to the recipient for any agreement or court order made after May 1, 1997. This means the parent paying child support cannot reduce their taxable income by the amount paid, and the parent receiving it does not report it as income. The full child support obligation is paid with after-tax dollars.
A narrow exception exists for older arrangements. Child support payments are deductible to the payer and taxable to the recipient only if the agreement or court order was entered into before May 1, 1997, and has not been altered since. Any modification to a pre-1997 order generally converts it to the current non-deductible, non-taxable treatment. Because nearly all New Brunswick separations occurring today fall under the post-1997 rules, child support has no tax consequence for either parent in the vast majority of cases.
The non-deductibility of child support is why the order of payments matters when a payer cannot meet their full obligation. The CRA applies partial payments to child support first and to spousal support second. If a payer owes $1,500 monthly ($1,000 child, $500 spousal) but pays only $1,000 in a given month, the entire $1,000 is treated as child support and none of it is deductible. This sequencing rule protects child support but can eliminate the payer's expected deduction.
Who Can Claim Dependants After Divorce in New Brunswick?
Claiming dependents during a divorce centres on the eligible dependant amount (CRA line 30400), a credit tied to the basic personal amount of approximately $16,452 for 2026. A single parent with primary parenting time may claim this credit for one child. The general rule, however, is that you cannot claim the eligible dependant amount for a child for whom you paid child support during the year.
There is a valuable exception in the year of separation. If you separated from your spouse or common-law partner during part of the year and paid spousal support, you may claim the eligible dependant amount for your child only if you do not also claim a deduction for spousal support paid on line 22000. In the year of separation, the payer must choose between deducting spousal support or claiming the personal tax credit for the spouse or child, whichever produces a better result. You cannot claim both.
In shared parenting situations where each parent has parenting time, the rules require careful coordination. If there are two children, each parent may claim one child as an eligible dependant, but only if neither parent is required to pay child support to the other. If one parent pays child support, only the parent not paying support may claim. Where two people could both claim the same dependant and cannot agree, neither parent is allowed the claim, so resolving this in your separation agreement prevents losing the credit entirely.
The Canada Child Benefit and Shared Parenting
The Canada Child Benefit (CCB) is recalculated when you update your marital status. In shared parenting arrangements where a child lives roughly equally with both parents, the CRA splits the CCB, paying each parent 50 percent of the amount they would receive if they had primary care. Each parent's share is calculated using their own adjusted family net income, so a lower-income parent may receive a larger portion. The CCB is non-taxable and does not need to be reported as income on either parent's return.
How Does Property Division Affect Taxes in a New Brunswick Divorce?
The transfer of property between spouses pursuant to a separation or divorce generally occurs on a tax-deferred (rollover) basis under the federal Income Tax Act, meaning no immediate capital gains tax is triggered when assets move from one spouse to the other. The recipient spouse assumes the original cost base of the asset and pays capital gains tax only when they later sell. New Brunswick's Family Law Act, SNB 2020, c. 23 governs the equal division of marital property, but the tax treatment is federal.
Different assets carry different hidden tax liabilities, which makes a 50/50 split on paper unequal in after-tax value. A $100,000 RRSP is not equivalent to $100,000 in home equity, because RRSP withdrawals are fully taxable as income while a principal residence is exempt from capital gains tax. Registered Retirement Savings Plans can be split tax-free between spouses using a court order or written separation agreement and CRA Form T2220, transferring funds directly between RRSPs without triggering tax.
The Canada Pension Plan (CPP) credits earned during the marriage can also be divided through a Division of Unadjusted Pensionable Earnings (DUPE), administered by Service Canada. This split is not taxable at the time of division. When negotiating your settlement, evaluate the after-tax value of each asset rather than its face value, because failing to account for embedded tax liabilities can leave one spouse with significantly less real wealth than the other.
What Tax Mistakes Should You Avoid During a New Brunswick Divorce?
The most common and costly tax mistake during a New Brunswick divorce is reporting your separation to the CRA before the 90-day period has fully elapsed, which can cause incorrect benefit calculations and potential repayment demands. Wait until day 91, then report using your actual first day of living apart as the separation date.
Another frequent error is failing to amend a previously filed return. If you file your return as married or common-law and then complete 90 days of separation afterward, you must change your marital status to separated using the first day of the 90-day period and file an amended return to adjust any credits you claimed or to claim amounts you became newly entitled to. Overlooking this step can result in either lost benefits or a repayment obligation when the CRA reconciles your account.
Other avoidable mistakes include: structuring spousal support as a lump sum without realizing it loses deductibility; both parents attempting to claim the same child as an eligible dependant and consequently both losing the claim; failing to register a support order with the CRA, which can jeopardize the deduction; and neglecting to account for the after-tax value of registered assets like RRSPs during property division. Keeping detailed records, including your separation agreement, court orders, and proof of all support payments, protects you if the CRA reviews your file.