Capital Gains Calculator

What You Owe
When You Sell

Enter what you bought and what you sold it for. The pooled cost base, the gain or loss, the superficial loss rule, and the taxable half calculate instantly, for shares, fund units, or crypto.

Greywood
Advisory

Capital Gains · 2026Disposition Calculator

01

What You Sold

One asset at a time

02

What You Held

Every purchase, across every account
Or the units you already held at the start of the year
Including commissions, exchange and network fees paid to buy them
$
Pooled cost per unit Calculated: total cost ÷ total units, the same for every unit you hold
$0.00
03

The Sale

Or the swap, or the spend
Part of a unit is fine
Dollars, or the fair market value in dollars of what you got in a swap
$
Commissions, exchange and network fees on the way out
$

Bought the same asset again in the 30 days before or after this sale, and still held it 30 days after? That includes your spouse, your RRSP or TFSA, or a corporation you control.

04

What It Costs

Optional
Where you'll file on December 31
Sets the rate the gain is taxed at, on top of everything else
$
Estimate
Capital Gain — 2026 · Crypto-asset · Ontario
How it's built
Units held before the saleEvery unit you held before the sale, at one pooled cost
0
Cost base of the units soldUnits sold × the pooled cost per unit
$0.00
Net proceedsWhat you received, less what the sale cost you
$0.00
Capital gain
$0.00
Units still heldNothing left in the pool
0
Taxable capital gain
$0.00

Reported on Schedule 3 of your return: one-half of a gain is taxable, and one-half of a loss offsets taxable gains only. Estimate only. If you trade often enough that the CRA would call it a business, the whole profit is income instead, and this calculator does not apply. Confirm with your adviser before filing.

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About this estimate

Three rules do all the work. Every unit of an identical property you hold has the same cost: everything you paid for all of them, fees included, divided by how many you have, across every account, exchange and wallet. The gain is what you received, less what the sale cost you, less that pooled cost for the units sold, and one-half of it is taxable; one-half of a loss is an allowable capital loss, which offsets taxable gains in the year, the three years before, or any year after. And a loss is superficial, and denied, where you or someone affiliated with you bought the same property in the 30 days either side of the sale and still held it 30 days after; the denied amount moves into the cost of what you bought back, so it is deferred rather than gone.

Crypto changes none of the arithmetic. Swapping one coin for another, spending it, or giving it away is a sale of the first coin at the fair market value of what you got, and the cost base of a coin pools across every platform you have ever used, which is the number no exchange report can see. Our tax-loss selling guide walks through the superficial loss window, and the crypto service page covers rebuilding a cost base when the history is spread across exchanges or missing. To see the gain's effect on your whole return, carry it into the tax estimator.

The rules are the CRA's own: T4037, Capital Gains, its page on capital losses, and its guide to reporting income from crypto-asset transactions.