Mortgage & Property Tax Implications of Divorce in Canada (2026)
Updated
Divorce and separation create a cascade of tax consequences that most Canadians don’t anticipate — especially around the matrimonial home, investment properties, and registered accounts. This guide covers the tax rules that apply when dividing property during a Canadian divorce or separation.
Important: For the mortgage mechanics of divorce (buyout process, refinancing, qualification), see Mortgage After Divorce. This article focuses specifically on the tax implications.
Transferring the matrimonial home
The spousal rollover (s.73(1))
When the matrimonial home is transferred between spouses as part of a separation or divorce:
Tax Rule
How It Works
Transfer price
Deemed to occur at your adjusted cost base (ACB) — not fair market value
Capital gain triggered?
❌ No — the transfer is tax-free
Receiving spouse’s ACB
Inherits the original ACB of the transferring spouse
Principal residence exemption
Preserved — can be claimed by the receiving spouse when they eventually sell
Land transfer tax
Exempt in most provinces when between spouses on marriage breakdown
Example
Factor
Value
Home purchased for (ACB)
$550,000
Current fair market value
$950,000
Unrealized gain
$400,000
Tax at transfer to ex-spouse?
$0 (spousal rollover)
ACB for receiving spouse
$550,000 (inherited)
When the receiving spouse eventually sells the home for $1,100,000, their capital gain will be $550,000 — calculated from the original $550,000 ACB, not the value at the time of divorce.
If the home qualifies as the receiving spouse’s principal residence for the entire ownership period, the principal residence exemption eliminates the capital gain entirely.
Opting out of the rollover
In rare cases, it may be beneficial to elect out of the spousal rollover and trigger the capital gain at the time of transfer:
When Opting Out May Help
Why
Transferring spouse has capital losses to offset the gain
Uses losses that would otherwise expire
Transferring spouse has low or no income that year
Gain is taxed at a lower marginal rate
Property has a large unrealized gain and receiving spouse plans to sell soon
May be better to split the tax burden across two returns
To opt out, file a joint election under s.73(1). Consult a tax professional before making this election.
Principal residence exemption on separation
The one-per-family-unit rule changes
Period
Rules
While married/common-law
One principal residence per family unit. If you own two properties, you can only designate one per year.
After separation
Each former spouse is their own “family unit.” Each can designate their own principal residence independently.
Date of change
The date of separation — not the date of divorce.
The departed spouse’s options
If Spouse A leaves the matrimonial home and Spouse B stays, Spouse A can still designate the home as their principal residence for up to 4 years after departing (under a s.45(2) election), even though they no longer live there.
Scenario
PRE Designation Available?
How Long
Both spouses living in the home
✅ Yes (one per family unit)
While living there
Spouse A leaves; files s.45(2) election
✅ Yes (up to 4 years after leaving)
4 years
Spouse A leaves; does NOT file s.45(2)
Only for years actually residing there
Until departure date
Spouse B stays in the home
✅ Yes
While living there
This matters when: the matrimonial home takes years to sell after separation. The s.45(2) election protects the departed spouse’s PRE claim for up to 4 years.
Transferring rental/investment property
The same spousal rollover applies
When a rental property is transferred between spouses on marriage breakdown:
Tax Rule
How It Works
Capital gain at transfer
❌ None (rollover at ACB)
CCA recapture at transfer
❌ None (deferred to receiving spouse)
Receiving spouse’s ACB
Inherited from transferring spouse
Receiving spouse’s UCC (undepreciated capital cost)
Inherited — CCA history carries over
Future sale by receiving spouse
Capital gain calculated from original ACB; CCA recapture applies
Example: Rental property transfer
Factor
Value
Rental property ACB
$350,000
CCA claimed to date
$40,000
UCC (undepreciated capital cost)
$310,000
Current FMV
$525,000
Tax at transfer to ex-spouse?
$0
Receiving spouse’s ACB
$350,000
Receiving spouse’s UCC
$310,000
When the receiving spouse eventually sells for $525,000:
Capital gain: $525,000 − $350,000 = $175,000
CCA recapture: $40,000 (taxed as income)
Total taxable: $175,000 × 50% (inclusion rate) + $40,000 = $127,500 included in income
The receiving spouse bears the full tax burden that was deferred at the time of divorce.
Attribution rules after separation
Standard attribution rules end at separation
Rule
During Marriage
After Separation
Income attribution (s.74.1)
Income from property transferred to spouse is attributed back to the transferring spouse
Ends — income is reported by the person who owns the property
Capital gains attribution (s.74.2)
Capital gains on transferred property attributed to transferring spouse
Ends at separation
Spousal RRSP 3-year rule
Withdrawals within 3 years attributed to contributing spouse
Ends at separation
Kiddie tax / attribution on transfers to children
Attribution to transferring parent
Continues — not affected by divorce
Date of separation is the key date. Once you are separated, transfers between former spouses are no longer subject to attribution rules (provided they are made under a separation agreement or court order).
Support payments and tax treatment
Payment Type
Tax Treatment for Payer
Tax Treatment for Recipient
Spousal support (periodic)
Tax deductible (Line 21999 and 22000)
Taxable income (Line 12799 and 12800)
Spousal support (lump sum)
NOT deductible
NOT taxable
Child support
NOT deductible
NOT taxable
Combined (child + spousal)
Child portion deemed paid first; only excess is deductible
Child portion is tax-free; spousal portion is taxable
Requirements for deductibility of spousal support
Requirement
Details
Written agreement or court order
Must be documented
Periodic payments
Monthly, quarterly — not a one-time lump sum
Paid to the former spouse
Not to a third party (with some exceptions for housing/medical)
Living apart
Must be living apart at time of payment
Impact on mortgage affordability
Spousal support received is counted as income for mortgage qualification. Spousal support paid is deducted from income for mortgage qualification.
Scenario
GDS/TDS Effect
Receiving $2,000/month spousal support
+$24,000 to qualifying income
Paying $2,000/month spousal support
−$24,000 from qualifying income
Receiving $1,500/month child support
+$0 (not taxable, but some lenders count a portion as income)
Paying $1,500/month child support
Counted as a debt obligation (increases TDS)
RRSP and pension transfers on divorce
RRSP transfers (s.146(16))
Rule
Details
Tax-free transfer?
✅ Yes — RRSP-to-RRSP transfer between former spouses
Requirement
Written separation agreement or court order specifying the transfer
Does it use RRSP room?
❌ No — it’s a direct transfer, not a contribution
Attribution rules
❌ Do not apply after separation
Spousal RRSP 3-year rule
❌ Does not apply to transfers under separation agreement
CPP/QPP pension splitting
Rule
Details
Credit splitting
CPP contributions earned during the period of cohabitation are split equally
Automatic vs requested
Must be requested by one party; not automatic
Calculation period
From date of marriage/cohabitation to date of separation
Impact
Each spouse receives credit for half of the combined CPP contributions during the period
Other pension transfers
Pension Type
On Divorce
Employer pension (defined benefit)
Commuted value split by court order — typically transferred to a locked-in RRSP (LIRA)
Employer pension (defined contribution)
Split by court order — transferred directly
TFSA
Not split automatically; division by agreement
FHSA
Cannot be split — individual account only
Tax return filing after separation
Item
What Changes
Marital status
Must update to “separated” on your T1 return by December 31 of the year you separated for 90+ days
GST/HST credit
Recalculated based on individual income
Canada Child Benefit (CCB)
Recalculated; must determine primary caregiver
Medical expenses
Can only claim your own (and your dependants’) — not your former spouse’s