The capital gains reserve: spreading a gain when the money arrives over years

The problem the reserve solves

A sale is complete for tax at closing, not when paid. Sell on a vendor-take-back note over five years and the whole gain is realized in year one, against cash mostly unreceived. The capital gains reserve spares you selling other assets to pay the tax. Selling a rental adds CCA recapture; see tax on selling a rental property.

It defers tax; it doesn’t reduce it. Compute the gain normally in the year of disposition: proceeds, less adjusted cost base, less selling costs. Deduct a reserve and report the rest. Next year the reserve is added back, and a new one claimed if amounts are still outstanding. That add-back is how the capital gains reserve Canada allows spreads one gain across the years the money arrives.

“Not receivable” is the operative test

The reserve is based on proceeds not yet due, not proceeds not yet paid, and that decides most cases. A buyer who owes the full price at closing but hasn’t paid gives you a collection problem, not a reserve. A buyer whose obligation to pay part arises only in year three gives you one.

So the payment schedule in the agreement does tax work and should be drafted deliberately, not just negotiated commercially.

How long the reserve can run

There is a ceiling. Most reserves can run at most four years, so the whole gain is reported within five years including the year of sale. A minimum fraction is reported each year however slowly the money arrives; a ten-year payment schedule does not buy a ten-year deferral.

A nine-year reserve, spreading the gain over ten years, applies to transfers to your child of family farm or fishing property or qualified small business corporation shares. It also covers qualifying business transfers and certain intergenerational transfers of those assets to a corporation controlled by your children. “Child” includes grandchildren, a child’s spouse, and someone wholly dependent on you and in your custody before age 19.

Every year a reserve is claimed, Form T2017, Summary of Reserves on Dispositions of Capital Property, must be completed. The form itself sets out the maximum deductible amount and how many years the reserve may run. So each capital gain reserve you claim needs that form completed for every year it runs.

Who cannot claim one

Three exclusions catch people out. No reserve for a year if you were non-resident at its end or at any time in the next year, or tax-exempt at those times. Most important for owner-managers: none if you sold the property to a corporation you control in any way.

That blocks the reserve on the deal owners most often consider: selling personal property to their own company. There the usual tool is a section 85 rollover, which defers the gain through elected proceeds.

Where the reserve fits in a business sale

On a share sale of an operating company, the reserve interacts with the lifetime capital gains exemption. If the exemption covers the gain, a reserve only adds complexity. Otherwise, spreading the excess can avoid the top bracket and soften income-tested amounts such as, near retirement, the OAS recovery tax.

It complements succession tools. An estate freeze caps future growth in the owner’s hands; a reserve times a gain already triggered. Family transitions often need both, and the ten-year reserve exists because family transfers are rarely paid at once.

The risk worth naming

A reserve bets the money will arrive. If the buyer defaults after year two, you have reported part of the gain and hold a bad debt. Separate rules cover that, but nothing reverses automatically. Security on the receivable matters as much as the tax analysis.

This article is general information for Canadian business owners and is current as of July 2026. It is not tax, legal or accounting advice, and it does not create a client relationship. Tax rules change and your situation is unique, so please speak with a CPA before acting on anything here.