Filing taxes during divorce in Alberta requires reporting your marital status to the Canada Revenue Agency only after living separate and apart for at least 90 days, then by the end of the following month. Spousal support is deductible on line 22000; child support since May 1, 1997 is neither deductible nor taxable. The 2026 eligible dependant amount is $16,452.
Divorce reshapes nearly every line of your Canadian tax return. Your marital status, who claims the children, how support payments flow, and how registered accounts are split all change the moment a relationship ends. Because Alberta divorces are governed federally by the Divorce Act, R.S.C. 1985, c. 3 (2nd Supp.) and the income-tax consequences are governed by the federal Income Tax Act, R.S.C. 1985, c. 1 (5th Supp.), the tax rules are the same across Canada — but Alberta-specific property division under the provincial Family Property Act affects how registered assets are equalized. This guide explains exactly how filing taxes during divorce Alberta couples must handle each step, with current 2026 figures, CRA line numbers, and statute citations.
Key Facts: Tax Filing During Divorce in Alberta
| Item | Detail |
|---|---|
| Divorce Filing Fee | $260 to the Court of King's Bench + $10 Central Divorce Registry = $270 total |
| Waiting Period | 90 days living separate and apart (CRA marital-status rule); 1 year separation for no-fault divorce grounds |
| Residency Requirement | One spouse ordinarily resident in Alberta for at least 1 year before filing |
| Grounds | Divorce Act, s. 8: one-year separation, adultery, or cruelty |
| Property Division Type | Equal division of property accrued during marriage under Alberta's Family Property Act (equalization) |
| 2026 Eligible Dependant Amount | $16,452 (line 30400) |
| Spousal Support | Deductible (payer, line 22000) / taxable (recipient, line 12800) |
| Child Support (post-1997) | Not deductible, not taxable |
When Do You Tell the CRA Your Marital Status Changed?
You must notify the Canada Revenue Agency of a separation only after you have lived separate and apart for more than 90 consecutive days, and then by the end of the month following the month your status changed. Your effective separation date is the first day you began living apart, not the day you report it. Once legally divorced, you report the divorce by the end of the following month.
The 90-day rule is the single most important tax-timing concept in any Alberta divorce. Under CRA administrative policy applying the Income Tax Act, R.S.C. 1985, c. 1 (5th Supp.), s. 248(1), you are considered "separated" for tax purposes only after a 90-day breakdown of the relationship. If you reconcile at any point inside that 90-day window, the clock resets to zero. You report the change online through CRA My Account or by filing Form RC65, Marital Status Change. Do not wait until tax-filing season: marital-status changes directly affect your Canada Child Benefit (CCB) and GST/HST credit, which the CRA recalculates the month after your status change. Failing to update promptly is the leading cause of benefit overpayments that must later be repaid.
What Marital Status Do You Use for Your Tax Return?
You tick the box matching your marital status on December 31 of the tax year. If you separated and the 90-day period was met by December 31, you file as "separated." If your divorce was legally finalized by December 31, you file as "divorced." If you were still within the 90-day window on December 31, you remain "married" for that return.
Your marital status on the last day of the year drives which credits you can claim, because the tax filing status divorce rules hinge on that single date. There are five CRA categories: married, living common-law, separated, divorced, and single. A critical nuance for separating Albertans: you cannot revert to "single" once you have been married — after a marriage ends you move to "separated" then "divorced," never back to single. For common-law partners (including Alberta Adult Interdependent Partners), you may file as single once you have been separated for the full 90 days. This is the Canadian equivalent of the "married filing separately divorce" question U.S. filers ask: Canada has no joint return, so each spouse always files individually, but the marital-status box still determines spousal-amount eligibility and benefit calculations for the household.
How Is Spousal Support Taxed in Alberta?
Spousal support (alimony) is fully deductible by the payer on line 22000 and fully taxable to the recipient on line 12800, provided it is paid as a periodic amount under a written agreement or court order registered with the CRA. A payer who sends $500 per month for a full year deducts $6,000; the recipient adds the same $6,000 to taxable income.
This deductible/taxable treatment, authorized under the Income Tax Act, s. 56.1 and s. 60.1, makes periodic spousal support tax-efficient when the payer is in a higher bracket than the recipient. To qualify, three conditions apply: there must be a court order or written agreement specifying the amount and frequency; the spouses must be living apart for the remainder of the year; and lump-sum payments generally do not qualify for the deduction. The payer enters the total of all support paid (spousal plus child) on line 21999, then the deductible spousal-only portion on line 22000. The recipient mirrors this, entering the total received on line 12799 and the taxable spousal portion on line 12800. Both lines must be completed correctly or the CRA may delay or deny the claim. You should register your written agreement or court order with the CRA to avoid processing problems.
How Is Child Support Treated for Taxes?
Child support payments under any Alberta agreement or order made after April 30, 1997 are neither deductible by the payer nor taxable to the recipient. A parent paying $1,000 per month in child support — $12,000 per year — receives no tax deduction, and the receiving parent reports nothing as income. This is the opposite of spousal support.
The 1997 reform created a clear line: post-April-1997 child support is tax-neutral, while spousal support remains deductible/taxable. This distinction matters enormously when payments fall into arrears. The CRA applies a priority rule: any amount paid that is short of the full obligation is applied to child support first, and only payments exceeding the full child-support obligation count as deductible spousal support. So if a court order requires $1,000 child support and $500 spousal support monthly, but the payer only sends $1,000 in a given month, the entire $1,000 is treated as non-deductible child support — none counts as deductible spousal support. The payer must still report the total of all support on line 21999, including the non-deductible child-support portion, even though only the spousal portion appears on line 22000. Pre-May-1997 orders may retain the old deductible/taxable child-support treatment unless they were varied.
Who Can Claim the Children After Divorce in Alberta?
Generally, the parent who pays child support cannot claim the amount for an eligible dependant on line 30400 for that child — only the parent who does not pay support can. The 2026 eligible dependant amount is $16,452, a federal non-refundable credit roughly equal to the basic personal amount, providing meaningful tax relief to one parent.
Claiming dependants divorce rules under the Income Tax Act, s. 118(1) turn on who pays support and how parenting time is shared. The line 30400 "amount for an eligible dependant" is the Canadian counterpart to the U.S. "head of household divorce" filing benefit — it gives a single parent supporting a child a spousal-equivalent credit. Where only one parent pays support, that paying parent is blocked, and the non-paying parent claims. In genuine shared-parenting situations where both parents have a court-ordered obligation to pay child support to each other, neither is automatically blocked, but the parents must agree on who claims — if they cannot agree, neither may claim. With two or more children in shared parenting where both pay support, each parent may claim one child. In the year of separation, a special transitional rule lets a support-paying parent claim line 30400 for the child instead of deducting spousal support on line 22000 — you choose whichever produces the better result. The dependant's net income (line 23600) reduces your claim, so complete the child's return first if they have earnings.
How Are RRSPs and Pensions Split for Tax Purposes?
RRSPs and RRIFs can be divided between separating Alberta spouses on a fully tax-deferred basis using CRA Form T2220, provided the funds move plan-to-plan and the transfer is made under a court order or written separation agreement. No tax is triggered, and the transfer does not use any RRSP contribution room, regardless of the amount moved.
This tax-free rollover under the Income Tax Act, s. 146(16) is one of the most valuable — and most easily botched — tax mechanics in an Alberta divorce. The single most dangerous mistake is withdrawing RRSP cash to pay an ex-spouse directly: the full withdrawal becomes taxable income to the withdrawing spouse, often a devastating cost. The transfer must be institution-to-institution. Form T2220 requires both parties' social insurance numbers and account numbers; if both spouses sign, no further documentation is required. The transferor receives a T4RSP, reports the amount on Schedule 7, and the transfer is recorded as non-taxable. Because RRSPs are pre-tax assets, Alberta family lawyers often apply a notional tax rate (commonly around 30%) when valuing them for equalization under the Family Property Act. The spousal-RRSP attribution rule — which normally taxes early withdrawals back to the contributing spouse — is suspended from the point of separation. TFSAs transfer under similar rules without Form T2220; FHSAs use Form RC723; locked-in pensions use Form T2151.
What Does It Cost to File for Divorce in Alberta?
The Court of King's Bench charges $260 to file a Statement of Claim for Divorce, plus a mandatory $10 Central Divorce Registry fee, for a total government filing cost of $270. A Certificate of Divorce costs an additional $40-$50, and certified copies are about $10 each. Fee waivers are available for low-income applicants.
As of April 2026. Verify with your local clerk. These figures come from the Court of King's Bench of Alberta and the official Alberta court-fees schedule. Filings that combine divorce with division of family property may cost up to $300. Beyond court fees, expect process-server fees of roughly $75-$150 for personal service and notary/commissioning fees of $25-$50 per document. Fee waivers are available under Rule 15.40 of the Alberta Rules of Court for applicants who cannot afford the fee; recipients of Income Support, AISH (Assured Income for the Severely Handicapped), or Alberta Works generally qualify by completing an Application for Fee Waiver and Statement of Finances. You can file electronically through Alberta's King's Bench Filing Digital Service or in person at registry offices in Calgary, Edmonton, Red Deer, Lethbridge, Medicine Hat, or Grande Prairie. An uncontested, self-represented "desk" divorce typically totals roughly $1,500-$1,740, while contested matters average far higher.
How Do Legal Fees Affect Your Taxes?
Legal fees paid to obtain spousal or child support, or to enforce an existing support order, are tax-deductible to the recipient under CRA policy; legal fees to get a divorce itself or to divide property are not deductible. A recipient who spends $5,000 in legal fees establishing a support entitlement may deduct that $5,000.
The deductibility of legal costs is a frequently missed tax saving in Alberta divorces. Under the Income Tax Act, s. 18 and s. 60 and CRA administrative policy, the recipient of support may deduct legal fees incurred to establish, increase, collect, or enforce child or spousal support, including fees to defend against a reduction of support. By contrast, the payer of support generally cannot deduct legal fees, and neither spouse can deduct fees relating to the divorce decree itself, custody/parenting-time litigation, or the division of matrimonial property under Alberta's Family Property Act. Keep detailed invoices from your Alberta family lawyer that separate support-related work from divorce and property work, because the CRA may ask for documentation supporting the deduction. The deduction is claimed on line 22100 (carrying charges and interest expenses) or as directed by current CRA guidance, with the support-related portion clearly identified.