Selling a Rental Property? How the Gain Can Shrink Your Canada Child Benefit Next July
The tax bill on a sale is worked out from taxable income. The Canada Child Benefit is worked out from net income, a few lines higher on the same return, and that is where the gain lands.
What income does the CRA use to calculate the Canada Child Benefit?
Adjusted family net income: your line 23600 plus your cohabiting spouse’s or common-law partner’s line 23600, with a few registered disability savings plan and Universal Child Care Benefit adjustments. From a property sale, that figure picks up the taxable capital gain and any CCA recapture, after same-year allowable capital losses and the outlays and expenses of the sale are taken off. What it leaves out is everything the return deducts further down, on the way to taxable income: a deduction taken after net income, such as a net capital loss from another year, does not lower the figure the CRA uses.
Source: Canada Revenue Agency, Canada child benefit: How much you can get (2026); Income Tax Act ss. 3, 111(1) and 122.6 (Justice Laws, 2026)
I’m Arthur Zhao, with AZ Real Estate Partners. When a seller sits down to estimate the tax on a rental property sale, the number they are working toward is taxable income, the figure tax is charged on. That is the right number for the tax bill. It is the wrong number for the Canada Child Benefit.
The CRA’s benefit calculation reads a line higher up the same return: line 23600, net income. Some of what a seller does to bring the tax down happens below that line, so it lowers the tax but never touches the benefit. For a family with children under 18, the sale year’s net income is what sets the benefit for the twelve months that start the following July.
This article follows the return from top to bottom, the way the CRA reads it, so you can see where the sale enters and which deductions sit on which side of line 23600. I’ll lay out the rules and the arithmetic; the numbers for your own sale belong with your accountant.
→
→
→
→
→
What a sale adds to line 23600
The second item is recapture. If you claimed capital cost allowance on the rental, subsection 13(1) says that when the undepreciated capital cost of the class goes negative at year-end, the excess shall be included in computing the taxpayer’s income of the year. Recapture is included as income, and it lands on line 23600 in the same year as the gain. How recapture is calculated is covered in the related reading below; for this article, what matters is that it counts.
Both amounts go into the seller’s own return. Adjusted family net income then adds the cohabiting spouse’s or common-law partner’s line 23600, so the sale raises the family figure whichever partner owned the property.
What comes off before line 23600
The costs of making the sale. Under subparagraph 40(1)(a)(i), the gain is the amount by which the proceeds of disposition exceed the adjusted cost base and any outlays and expenses made or incurred for the purpose of making the disposition. A smaller gain means a smaller taxable capital gain, and that flows straight through to line 23600. Which of your closing costs qualify is a question for your accountant, who will want the invoices.
Allowable capital losses in the same year. Paragraph 3(b) nets the year’s taxable capital gains against the year’s allowable capital losses before the result is added in. If you sold something else at a loss in the same calendar year, that loss reduces net income, and the benefit sees the smaller number. Only losses realized in the sale year work this way; the next step explains why losses from other years do not.
What comes off only after line 23600
The practical effect: a net capital loss carried in from another year (the paragraph allows losses from preceding years and from the three following years) can reduce, or in some cases wipe out, the tax on the gain. It does not reduce line 23600. The adjusted family net income the CRA uses for the benefit still includes the full taxable capital gain.
This is the place where tax planning and benefit planning come apart. A seller who has a carried-forward loss and is told the gain is “covered” has heard something true about the tax bill and nothing at all about the benefit.
Which months of benefits that tax year pays for
Section 122.6 ties every benefit month to a base taxation year. For any of the last six months of a calendar year, the base year is the taxation year that ended on December 31 of the preceding calendar year. For any of the first six months, it is the year that ended on December 31 of the second preceding calendar year.
Put those two rules together and one tax year feeds one July-to-June stretch. According to the Canada Revenue Agency (2026), payments from July 2026 to June 2027 are based on adjusted family net income from 2025, and the CRA recalculates every July. A sale that closes in 2026 goes on the 2026 return, and that return sets the benefit from July 2027 to June 2028.
The months before July 2027 still run on the 2025 return, so nothing changes in the benefit while the sale is happening or in the first half of the following year.
ℹ️The Canada Groceries and Essentials Benefit (CGEB) is the new name of the former GST/HST credit. It runs on the same July recalculation: the CRA uses the previous year’s return to set the amount for the payment period that starts that July, so a sale year can move it as well.
The two reduction bands (July 2026 to June 2027 parameters)
What the reduction looks like in dollars: a one-child example
The CRA’s own example is a family with one child under 6 and adjusted family net income of $45,000. Using the July 2026 to June 2027 parameters, the maximum for a child under 6 is $8,157 a year. The reduction is ($45,000 − $38,237) × 7% = $6,763 × 7% = $473.41, so the annual benefit is $8,157 − $473.41 = $7,683.59.
Now suppose a rental sale adds $50,000 to the family’s net income, so adjusted family net income becomes $95,000. That moves the family into the upper band:
• Income above the upper threshold: $95,000 − $82,847 = $12,153
• Percentage part: $12,153 × 3.2% = $388.90
• Total reduction: $3,123 + $388.90 = $3,511.90
• Annual benefit: $8,157 − $3,511.90 = $4,645.10
The difference is $7,683.59 − $4,645.10 = $3,038.49 over the year. This is an illustration only: it uses the July 2026 to June 2027 parameters, assumes the child stays under 6 for the whole benefit year, and assumes nothing else in the family’s income moves. A 2026 sale actually affects the July 2027 to June 2028 year, whose parameters will be different.
💡 My view: the thresholds you can look up today are not the ones that will apply to the benefit year your sale affects. The CRA says the benefit is indexed to inflation and recalculated every July, and the figures published now cover July 2026 to June 2027, which is based on 2025 income. A sale closing in 2026 is measured against the July 2027 parameters, which have not been published. So any benefit figure worked out at the time of the sale, including the example above, is an estimate of direction and size, not the amount that will arrive. I’d treat it that way when you compare it with anything else in the decision.
Instalment sales and the reserve
Subparagraph 40(1)(a)(iii) lets a seller claim a reserve where part of the proceeds of disposition is payable after the end of the year, for example where the seller takes back part of the price and the buyer pays over time. The reserve has to be a reasonable amount in respect of the proceeds not yet due, and an individual claims it in prescribed form filed with the return.
The cap in that subparagraph works in fifths of the gain, reduced by one-fifth for each taxation year that has ended since the sale, so in the ordinary case the gain is recognized over no more than five taxation years (subsection 40(1.1) substitutes tenths for a narrow set of transfers). Under subparagraph 40(1)(a)(ii), a reserve claimed in one year comes back into the gain the next year, where a new reserve may be claimed against what is still outstanding.
For the benefit, that means the taxable capital gain lands on line 23600 across several returns instead of one, and each of those returns sets its own July-to-June benefit year. It describes how the Act treats a sale that is genuinely paid over time. It is not a reason to structure a sale, and whether it applies to your deal is your accountant’s call.
⚠️A reserve is only available where part of the proceeds is genuinely not payable until after the end of the sale year, and an individual must claim it on the prescribed form filed with the return. Whether your sale qualifies, and how much can be claimed, is a question for your accountant.
Principal residence, the CGEB and the Ontario Child Benefit
Principal residence. Where a home was designated as your principal residence for every year you owned it and the exemption covers the whole holding period, there is no taxable capital gain to reach net income. Years when the property was rented, or when you owned a second home, change that, and the split is a question for the CRA’s guidance or your accountant.
Canada Groceries and Essentials Benefit (CGEB, formerly the GST/HST credit). Section 122.5 defines adjusted income for this benefit the same way: your income plus that of your qualified relation. Subsection 122.5(4) assigns a taxation year to the July and October of the following year and the January and April of the year after that. According to the CRA (2026), the 2025 return determines the CGEB for July 2026 to June 2027, with maximums of $679 for a single individual, $890 for a married or common-law couple and $234 for each eligible child under 19.
Ontario Child Benefit. The ontario.ca page (updated June 30, 2026) says the OCB provides up to $1,760 per child each year, is administered by the CRA, and that the amount depends on adjusted family net income on your annual income tax return. The page does not publish the OCB reduction schedule, so this article does not estimate it.
Before you estimate the effect on your benefit
Each item is grouped by where the answer comes from.
- ☐Find line 23600 on your most recent return and on your cohabiting spouse’s or common-law partner’s, and add them together.
- ☐Count the children under 18 in your care and note which will be under 6 in the July after the sale year.
- ☐Collect the invoices for costs you paid to make the sale.
- ☐Write down any part of the price that will be paid to you after December 31 of the sale year, with the due dates.
- ☐Note any other property or investment you sold at a loss in the same calendar year.
- ☐Ask what the sale adds to line 23600 once the taxable capital gain and any recapture are combined.
- ☐Confirm which closing costs count as outlays and expenses of the disposition.
- ☐Ask whether any loss you plan to use is a same-year allowable capital loss or a net capital loss from another year.
- ☐Ask whether a reserve is available on your terms of sale, and how it spreads the gain across returns.
- ☐Check how much of the gain, if any, the principal residence exemption covers.
- ☐Read the Canada child benefit How much you can get page once the July figures for your benefit year are posted.
- ☐Run the CRA benefit calculator with your estimated adjusted family net income.
- ☐File both returns every year, which the Ontario Child Benefit requires even with no income to declare.
- Canada Revenue Agency, Canada child benefit: How much you can get (July 2026 to June 2027 amounts)
- Canada Revenue Agency, Canada Groceries and Essentials Benefit: How much you can get
- Government of Ontario, Ontario Child Benefit (updated June 30, 2026)
- Income Tax Act, section 3 (income for taxation year)
- Income Tax Act, subsection 13(1) (recapture)
- Income Tax Act, section 40 (gain, outlays and expenses, reserve)
- Income Tax Act, subsection 111(1) (net capital losses)
- Income Tax Act, sections 122.5, 122.6 and 122.61
Selling the Cottage or Rental in Retirement: Will That One-Year Capital Gain Trigger the OAS Clawback or Cut Your GIS? →Selling a Rental Property in Ontario: Capital Gains and CCA Recapture Explained →Sold a Rental or Second Property at a Big Gain? When CRA Expects Quarterly Tax Instalments →The Ontario Selling Blueprint →
Frequently Asked Questions
Does the Ontario Child Benefit use the same income figure?
The Ontario government says the OCB amount depends on your adjusted family net income on your annual income tax return, and that the CRA determines the monthly payments. You are assessed for it automatically when you apply for the Canada Child Benefit, and it pays up to $1,760 per child each year (ontario.ca, updated June 30, 2026). The page does not publish how the OCB is reduced as income rises, so use the CRA benefit calculator for an estimate.
We share custody. Whose income does the CRA use?
According to the CRA (2026), each parent with shared custody gets 50% of what they would have received with full custody, calculated on their own adjusted family net income. That figure adds a cohabiting spouse’s or common-law partner’s line 23600, and under section 122.6 a partner living separate and apart for at least 90 days because of a breakdown of the relationship is not counted. A sale by one former partner moves that household’s figure, not the other parent’s.
Do the costs of selling reduce the income figure the CRA uses?
Yes, to the extent they qualify. Subparagraph 40(1)(a)(i) of the Income Tax Act measures the gain after the adjusted cost base and any outlays and expenses made or incurred for the purpose of making the disposition, so qualifying costs shrink the taxable capital gain before it reaches line 23600. Ask your accountant which of your closing costs fit that wording.
Will the benefit go back up the year after?
The CRA recalculates the benefit every July from the previous year’s adjusted family net income, so each tax year sets one July-to-June period. If the sale year’s gain does not repeat, the following return feeds the next July’s recalculation with that lower figure, under the thresholds the CRA publishes for that period. If a reserve was claimed under section 40, part of the gain comes back into income in later years and those years are affected too.
Is the Canada Groceries and Essentials Benefit recalculated the same way?
Yes. The CGEB, formerly the GST/HST credit, is recalculated every July from the previous year’s return; the CRA says the 2025 return sets the amount for July 2026 to June 2027. Under subsection 122.5(4) of the Income Tax Act, a tax year feeds the July and October payments of the next year and the January and April payments of the year after, the same July-to-June pattern as the child benefit.
Discover more from GTA Real Estate Broker | Arthur Zhao
Subscribe to get the latest posts sent to your email.
