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SR&ED glossary.

Understand the terms behind your claim. Start with eligible work for the project, qualified expenditures for the credit calculation, and refundable ITC for what may be paid back. Each definition links to the CRA guidance.

View the full CRA SR&ED glossary
Allowable SR&ED expenditures

Costs that meet the rules for an SR&ED income tax deduction. This is a different calculation from qualified expenditures, which determine the investment tax credit. A cost may receive different treatment in the two calculations.

CRA: Allowable expenditures
Assistance

Funding or support, such as a grant, subsidy, or reimbursement, that can reduce the expenditures used to calculate a claim. Provincial R&D credits can also affect the federal calculation. Identify what the funding pays for before working out the adjustment.

CRA: Assistance and contract payments
Canadian-controlled private corporation (CCPC)

A private corporation resident in Canada that meets specific incorporation, ownership, control, and share-listing conditions in the Income Tax Act. CCPC status affects which SR&ED credit and refund rules apply.

CRA: Types of corporations
Claim year

The tax year covered by an SR&ED claim. A project may span several years, but the claim reports the work and related expenditures for the particular tax year being claimed.

CRA: Grouping work into projects
Eligible work

Work that meets the SR&ED definition: basic research, applied research, experimental development, and qualifying support work. Market research, routine product testing, and ordinary quality control are excluded. Testing done specifically to support eligible R&D can qualify as support work.

CRA: What work is eligible
Expenditure limit

The amount of qualified expenditure that can earn the enhanced federal credit rate in a tax year. It can be reduced and must be allocated among associated CCPCs or members of a consolidated eligible Canadian public-corporation group. Expenditure above the limit can still earn the basic rate.

CRA: Investment tax credits
Form T661

The SR&ED Expenditures Claim form. It describes the work carried out for each SR&ED project and reports the related expenditures, including the calculations for allowable and qualified expenditures.

CRA: Reporting work and expenditures on Form T661
Hypothesis

An idea that fits the known facts and gives an investigation something to test. It might be a proposed explanation, method, or solution. Experiments or analysis test the idea and help the team decide what to try next.

CRA: SR&ED glossary
Investment tax credit (ITC)

A tax credit calculated on qualified SR&ED expenditures. It can reduce income tax payable, and some or all of it may be refundable, depending on the claimant and the applicable rules.

CRA: Investment tax credits
Non-refundable ITC

A credit that reduces income tax payable without paying out the unused balance as a refund. Subject to the carryover rules, an unused SR&ED ITC may be applied to income tax payable in another tax year.

CRA: Investment tax credits
Prescribed proxy amount (PPA)

A calculated amount used under the proxy method in place of actual SR&ED overhead and other expenditures when calculating the ITC. It is based on an eligible salary base, subject to limits. The PPA itself is not an income tax deduction.

CRA: Prescribed proxy amount
Proxy method

A method that uses the prescribed proxy amount to represent overhead and other expenditures when calculating the credit. It avoids separately identifying those overhead costs for the SR&ED claim. The choice between proxy and traditional methods is made for each tax year and cannot be changed once the claim is filed.

CRA: Traditional and proxy methods
Qualified SR&ED expenditures

The expenditures and other amounts used to calculate the SR&ED investment tax credit after the required adjustments. These can include additions, such as the prescribed proxy amount, and reductions for assistance or certain contract payments.

CRA: Qualified expenditures
Refundable ITC

A credit whose eligible unused portion may be paid as a refund after it is applied against income tax payable. The amount that can be refunded depends on the claimant, expenditure type, and applicable rules.

CRA: Investment tax credits
Scientific or technological advancement

New knowledge that advances the understanding of science or technology. Learning why a tested approach does not work can contribute to an advancement, even when the project does not reach its intended result.

CRA: What work is eligible
Scientific or technological uncertainty

A gap in scientific or technological knowledge that makes it uncertain whether a result can be achieved, or how to achieve it. It is assessed against the knowledge available within the business and from reasonably accessible public sources.

CRA: Eligibility guidelines
Scientific research and experimental development (SR&ED)

A term defined in the Income Tax Act for systematic investigation in science or technology through experiment or analysis. It covers basic research, applied research, experimental development, and certain directly supporting work, with specific exclusions.

CRA: Eligibility guidelines
Specified employee

An employee who does not deal at arm’s length with the employer, or who meets the tax definition of a specified shareholder. Special limits apply to the salary or wages and proxy salary base that can be included for these employees.

CRA: Salary or wages
SR&ED project

Related activities that together seek the same scientific or technological advancement. Its boundaries follow the investigation, which may be part of one business project or span several. A product name or internal cost centre does not, by itself, define an SR&ED project.

CRA: Grouping work into projects
SR&ED reporting deadline

The deadline for submitting the required SR&ED claim information. For a corporation, it is normally 18 months after the tax year ends: 12 months after the corporate return is due. This later deadline does not extend the normal tax return filing due date.

CRA: Reporting deadlines and supporting records
Support work

Work in a listed category, such as engineering, programming, testing, or data collection, that directly supports basic research, applied research, or experimental development in Canada. Its amount, extent, and duration must match the needs of that work.

CRA: What work is eligible
Systematic investigation or search

An investigation that defines a problem, proposes a hypothesis, plans and tests it through experiment or analysis, and draws logical conclusions from the results. An organized development process alone does not establish this requirement.

CRA: Eligibility guidelines
Traditional method

A method that identifies actual eligible overhead and other expenditures as part of the SR&ED expenditure calculation. The alternative is the proxy method, which uses a calculated amount for those costs when determining the credit.

CRA: Traditional and proxy methods

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