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Stock option deduction (s. 110(1)(d))

The stock option deduction is the deduction in paragraph 110(1)(d) of the Income Tax Act that an employee can claim against the taxable benefit from a security option when conditions are met. They include a price no less than fair market value when the agreement was made.

An employee holding options when a business is sold meets this deduction when the options are exercised or cashed out. Subsection 7(1) deems the employee to have received a benefit, and paragraph 110(1)(d) then allows a deduction of a fixed fraction of that benefit, which the paragraph sets.

The conditions the CRA lists

The CRA’s employers’ guide says the employee can claim the deduction if a qualifying person agreed to sell or issue shares, or units of a mutual fund trust; the employee dealt at arm’s length with the qualifying persons right after the agreement was made; a share is a prescribed share; and the price is not less than fair market value when the agreement was made. It adds further conditions for cash-outs and for annual vesting limits on certain options.

What to ask

  • Whether the options will be exercised or cashed out at closing
  • Whether the exercise price met the fair market value test when the agreement was made
  • Whether the employer is a Canadian-controlled private corporation, since the CRA’s guide describes, when conditions are met, a deferral of the benefit to the year the shares are disposed of and a separate deduction under paragraph 110(1)(d.1); see stock option benefit deferral

For how options are taxed in a buyout, see stock options in a buyout.

Sources

This definition is checked against primary sources. Links were last confirmed on the dates shown.

  1. 01
    Government of Canada (Department of Justice)Government
    Income Tax Act, section 110 (deductions permitted)
    laws-lois.justice.gc.ca·Checked Oct 25, 2026
  2. 02
    Canada Revenue AgencyGovernment
    Employers’ Guide – Taxable Benefits and Allowances (T4130)
    canada.ca·Checked Oct 24, 2026

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