What is SR&ED and can my business claim it?

What SR&ED actually is

SR&ED is the federal government’s largest single incentive for business research and development. It is delivered as an investment tax credit rather than a grant. That means it reduces tax owing, and it can be refunded in cash for many small corporations even if they owe no tax at all. It covers wages, some contractor payments, materials consumed in the work, and a portion of overhead, provided the work meets the program’s technical eligibility test.

The eligibility test that trips up most claims

Qualifying work needs two things at once. It needs technological uncertainty: the outcome, or the way to achieve it, was not known in advance using standard practice. It also needs a systematic investigation: you formed a hypothesis, tested it, and recorded what you learned along the way. Building something new is not enough on its own. If the approach was already well understood and simply required skilled work to execute, that is routine engineering or development, not SR&ED. This is true even if the end result is genuinely innovative for your business.

How much a CCPC can actually claim

A Canadian-controlled private corporation can claim a 35% refundable federal investment tax credit. This applies to qualifying SR&ED expenditures up to an annual expenditure limit. That limit has historically been $3 million, though it has been the subject of recent federal increases. We confirm the current figure before finalizing a claim, rather than relying on a number that may have changed. Spending above the limit, and claims from corporations that are not CCPCs, generally earn a lower 15% credit that is not refundable. Ontario layers its own credits on top, including a refundable innovation credit and a non-refundable research and development credit. Ontario’s credits are calculated on the same qualifying expenditure base used for the federal claim. So a corporation preparing a T661 is effectively building the foundation for both the federal and provincial credits at once, rather than doing the eligibility analysis twice. A corporation that skips the provincial credit, assuming the federal claim already captures everything, is leaving a second, separate refund or reduction on the table. That reduction applies to the same underlying work.

Does software qualify?

Often, yes, but not automatically. Building a standard web application or e-commerce store using well-documented frameworks and known techniques generally does not qualify, even if it is new to your business. Developing a new algorithm, data structure, or architecture to solve a problem that off-the-shelf approaches cannot solve is the kind of work SR&ED is built for. That is especially true where you genuinely were not sure it would work, and had to test and iterate to find out. This makes software one of the more common but also more frequently misfiled categories of claim.

Salaries, contractors, and the claim base

The strongest base for a claim is T4 salary and wages paid to employees doing eligible work. That base is tracked against the time employees actually spent on it. Payments to contractors can also qualify, but they are generally treated less favourably in the credit calculation than employee wages. So a business relying heavily on contractors for its development work should expect a smaller claim base than one with employees doing the same work. Good time-tracking, part of solid bookkeeping, can be as simple as a monthly log of hours by project. It makes the difference between a defensible claim and one built on estimates after the fact.

A well-written T661 narrative prepared months after the work was done, with no supporting notes from along the way, is a weaker claim than a rougher one. A rougher narrative backed by dated project logs, version control history, test records, or meeting notes captured while the work was actually happening holds up better. CRA reviewers are specifically trained to probe whether the technological uncertainty was real at the time, not just described convincingly afterward. Contemporaneous evidence is worth more than polished prose written later.

Government grants, wage subsidies, and other forms of assistance received for the same project generally reduce the qualifying expenditure base used to calculate the SR&ED credit. That is because the credit is meant to offset costs the business actually bore itself. A business stacking SR&ED with other funding sources needs its bookkeeping to clearly separate which costs were reimbursed by other programs and which were not. This avoids claiming the same dollar of spending twice.

The filing deadline

SR&ED is claimed on Form T661, filed with the corporate tax return. The deadline is firm: 18 months after the end of the tax year the expenditures relate to. Missing this deadline means losing the claim entirely for that year, with no extension available. That makes SR&ED one of the few CRA deadlines where late genuinely means never, rather than late with a penalty.

How we handle this

We help identify which projects and costs are likely to meet the technological uncertainty test before the claim is prepared. We build the T661 narrative around contemporaneous project notes rather than reconstructed memory. And we keep the 18-month deadline on our calendar, so a claim is never lost to timing. This is common ground with our SaaS and startup tax services and our broader work with technology companies.